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Author Topic: Fokker Alpha-Numeric Aircraft Designations  (Read 3212 times)

Offline Apophenia

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Fokker Alpha-Numeric Aircraft Designations
« on: April 11, 2018, 03:23:35 pm »
Fokker Designation Style

First World War Fokker Aircraft Designations

While in Germany, Anthony Fokker's various corporate entities applied internal designations to aircraft designs. This early designation series began with  'M' for 'Militär' followed by an individual type number in Arabic numerals. This 'M' series ran from the M 1 observation monoplane of 1913 to the M 22 (D.V) biplane fighter of 1916.

'M' series designation details will be found in the introduction to Fokker 'M' Series Aircraft Designations

Initially, the German military simply adopted the corporate nomenclature of the 'M' series but, later, the Inspektion der Fliegertruppen (Idflieg) assigned role-specific designations to aircraft accepted for use by the German Army's Luftstreitkräfte. During WWI, various Fokker service types would have the following Idflieg role designators applied:

 - 'A' : For early unarmed reconnaissance/observation monoplanes
 - 'B' : For early unarmed reconnaissance/observation biplanes
 - 'C' : For singled-engined reconnaissance-bombers*
 -- * Fokker's C.I 2-seater of 1918 was too late for German service
 - 'D' : For single-engined, single-seat biplane fighters (later all fighters)
 - 'Dr': For single-engined, single-seat triplane fighters (Dreidecker)
 - 'E' : For single-engined, single-seat monoplane fighters (Eindecker)
 - 'F' : For experimental fighter; poss. orig. Idflieg triplane desig.**
 -- ** Sole application was Fokker F I triplanes, the pre-series Dr Is
 - 'K' : For combat aircraft (Kampfflugzeug)***
 -- *** Sole application was 1915 K I twin-engined, 3-seat fighter
 - 'V' : For prototypes (Versuchflugzeug)
 - 'W' : For Wasserflugzeug (flying boat and floatplanes)

For completeness, I will list Fokker letter designation which have already been covered by Jemiba in Fokker Designations, 1912 - 1921.
https://www.secretprojects.co.uk/forum/index.php/topic,16947.msg163646.html

As the war progressed, the unarmed 'A' and 'B' types faded away. By 1918, all fighters were designated in the 'D' sequences (Idflieg dropping its earlier 'Dr', 'E', and 'K' designators). Many of the late-WWI Idflieg role designaters would be kept in use when Anthony Fokker moved his aircraft operations to the Netherlands in 1919.

One completely anomalous designation of this period is the Fokker V-LC. This aircraft is recorded as being a 2-seat D.VII derivative - a description that fits the Fokker V 31 glider tug conversion or the V 35 (which some sources list as a 2-seat D.VII development). The Fokker V-LC was said to be captured by or surrendered to the French and, in 1919, donated to the Argentine Armada. So, was 'V-LC' a weird, one-off Fokker designation (or possibly a garbled 'V-CL' combining 'Prototype' + 'CL-typ'?) or was that V-LC appellation actually applied by the French?

Post WWI - Early NV Nederlandsche Vliegtuigenfabriek Designations

Most famous (or infamous) for WWI fighters, Fokker carried over the wartime 'D' series designations without interruption to the sequence. The same might be said of the Idflieg 'C' series designations ... except Fokker's first C.I airframe had only just been completed as WWI ended. The 'V' for prototypes series of designations was also continued in sequence ... but only until the end of 1919. [1]

Fokker also briefly continued use of the Idflieg-style 'W' designater (now for Watervliegtuig rather than Wasserflugzeug). This was short-lived, being applied to early-stage designs - the  W.II, a twin-float airliner concept also known by the compound designation F.W., or simply as the "Avion commercial". (Later on, 'W' would become the designation suffix for all Fokker aircraft on floats.)

Other early-style compound designations applied to projects included:

 - F.B. : For early-stage flying boat concepts
 -- F.B. concepts would receive B-serie designations when built
 - F.G. : For 'Fokker Glijdvliegtuig' (Fokker Glider)
 - F.W. : For 'Fokker Watervliegtuig' (Fokker Water aircraft or floatplane)
 -- F.W. concepts seem to relate exclusively to early T-serie designs
 - V.W. : Seemingly for 'Verkeers Watervlieg' (Commercial Floatplane)
 -- V.W.3, a 1920 float-airliner design appears to be sole V.W. application

It would seem that these compound designations were applied to advanced projects. Once those projects were considered viable for production, replacement designations would be applied.

Fokker changed Idflieg-style role designater letters to suit his own needs. Most famously, 'F' was recycled for commercial aircraft ... seemingly now simply standing for 'Fokker'. [2] Fokker also added new role designater letters as he found them necessary. These included:

 - B : For 'Boot' (ie: Vliegboot or flying boat)*
 -- * Fokker also used 'Amphibievliegboot' (with or w/o wheeled u/c) [3]

 - CC: For 'Luchtkruiser' ('Air Cruisers' or Heavy Multi-Role Aircraft)
 -- No CC type built. Desig. suggests recce but more like medium bombers

 - CG: For Recce-Fighters, AFAIK, only applied to unbuilt CG.2**
 -- ** aka Ontwerp 154, orig. designated G.2, then C.16 before CG.2

 - CS: For Recce-Trainers, AFAIK, only applied to unbuilt CS.III

 - DC: For 2-seat Fighter-Reconnaissance (1923 DC.I and unbuilt DC.II)

 - G : For Jachtkruisers (multi-engined, multi-seat fighters, eg: G.1)

 - S = For dedicated training aircraft (Lesvliegtuig, lesson planes)

 - T = Torpedo-bombers and Bombers (Torpedovliegtuigen en Bommenwerpers)


Fokker Type Numbers Styles

Following Idflieg role designation letters, aircraft type numbers were rendered in Roman numerals. [4] Again, Fokker followed that German pattern upon his return to the Netherlands. Numbers were applied sequentially - in an uninterrupted continuation of the wartime sequence where Idfleig designaters were reused. That system remained unchanged through to the unbuilt Fokker F.XXI project of circa 1933.

In mid-1930s, someone - doubtless in the marketing department - decided that Fokker commercial designs should have non-sequential designations based upon their seating capacity. The first commercial design to reflect this new policy was the four-engined Fokker F.XXXVI airliner of 1934. This aircraft had a crew of four plus thirty-two passengers for a total of thirty-six. So, at that point, the F-serie designations suddenly jump from F.XXI - the twenty-first commercial design - to F.XXXVI for the thirty-six people on board.

The F-serie became more confusing when the next design was the 22-seat Fokker F.XXII of 1935. As the designation shows, the F.XXII - a reduced-scale Fokker F.XXXVI - carried twenty-two people. But the emerging trend of the time was for airliners to carry even larger passenger loads. And designations like F.XXXVI were already becoming highly unwieldy. That may have clinched the decision to switch from Roman to Arabic numerals. Thus, the F.XXXVI became a more-manageable F.36 while the F.XXII became the F.22.

Switching to Arabic numerals for Fokker designations was probably a good idea but it never really stuck. The aviation press continued to apply Roman numerals to Fokker products. And they can hardly be blamed since Fokker itself continued to paint Roman numeral designations onto the fins of its aircraft. (That results in a conundrum for listers of Fokker designations. I have been idiosyncratic and listed Roman numerals for designations wherever that seems to be the commonest usage.)

Post-WW2 Fokker Aircraft Designation Styles

The Arabic numeral designations finally stuck after WW2. Here the F-serie returns to a chronological sequence. Ironically, these spring from 1939's unbuilt F.24 - a designation based on its twenty-four passenger seats. However, from that point, F-serie designations revert back to a chronologically progress - from the F.25 Promotor of 1947 to the unbuilt F.29 jetliner of 1979. But then, once again, the marketing department had its way with designations.

A simple example is the Friendship commuterliner of 1955. Once the Ontwerp 275 studies were finalized, the designation F.27 was applied. This type would also be built under license by Fairchild in the US where it would be designated F-27. Perhaps as a result of that, aviation journalists could never quite decide whether a period or a hyphen should be used in the designation. That might be why, eventually, Fokker gave up and starting referring to their aircraft as an F27. (For consistency, I have stuck - more or less - with the period until the advent of the F28 jetliner.)

In the mid-1980s, the Marketing Department had its way with Fokker designation style yet again. An updated and re-engined F.27 derivatives was announced in November 1983 as the 'F.50' program. Marketed as the 'Fokker 50', this design was known internally as the Fokker F27 Mark 050. Similarly, the Fokker 50U utility transport for military use had the internal designation F27 Mark 0502. Likewise, the stretched Fokker 60 was known internally as the F27 Mark 0604. [5]

Following the pattern of the 'F.50'/Fokker 50, a modernized F28 was dubbed 'F.100'. Marketed as the Fokker 100, this stretched update was designated internally as the F28 Mark 0100.

Post-WW2 Fokker sub-type styles will be covered below.

Fokker Sub-Type Suffix Letters

As noted with the post-WWI 'W' designater letter for floatplanes, Fokker also used suffix letters. The commonest were sub-type identifiers. Generally, these follow an alphabetical sequence. The commonest form for sub-type suffixes are lower-case letters - eg: F.VIIa. However, even Fokker drawings often showed the sub-types rendered as capital letters. In the late 1930s, the capital letter style for sub-types became official - eg: G.1A and G.1B.

Fairly major changes to a design would result in a new sub-type number being assigned. So, for example, longer-span wings turned the F.VIIa into a F.VIIb. However, if the basic airframe remained unaltered but other changes were put in place, a modifier suffix was added. For example, when the eenmotorig F.VIIa was modified into a trimotor, it became the driemotorig F.VIIa/3m.

In cases of changed roles or basic equipment, a further suffix could be tacked on after a hyphen. Early on, there was one application of 'F' as a modifier - tacked on to the unbuilt T.III-F (aka F.W.) to show a planned commercial derivative of a torpedo-bomber seaplane. The most common fitment modifier was the -W suffix (for 'Watervliegtuig' - floats, in Dutch, are drijvers). Less commonly, when floatplane designs were to be adapted to a wheeled undercarriage, an -L for Land suffix was added to the basic designation - eg: T.VIII-W/L.

The T.VIII-W/L was a one-off land-version of the T.VIII-W/C ... which brings up some late additions to the suffix list. The 1939 T.VIII-W was retroactively re-designated T.VIII-W/G. That '/G' add-on stood for 'Gemengd' (Gemengde constructie/Mixed construction) referring mainly to this seaplane's fabric-covered rear fuselage. The retroactive change was necessary to make sense of the next designation in the sequence - the T.VIII-W/M for 'Metaal' (Metalen constructie) with its semi-monocoque duralumin rear fuselage. These were then followed chronologically by the enlarged T.VIII-W/C. That 'C' was a for a sub-type - 'missing' designations being for a proposed Bristol Mercury VI-powered T.VIII-W/A and the Pegasus XXIV-powered T.VIII-W/B, also unbuilt.

'M' had been used earlier as a modifier suffix. 'M' could stand for Metaal but, more often, 'M' stood for Militair vliegtuig. Eg: the F.VIIa/3m-M was a bomber adaptation of the F.VIIa/3m airliner. Then there was the F.XIIM (note the absence of a hyphen), a locally-improved version of the F.XII trimotor airliner for Denmark's DDL. This 'M' is a bit of an anomaly and it is tempting to suggest that it was a purely Danish addition (perhaps for Modificeret?) which was outside of the standard Fokker designation style.

Fokker Post-WW2 Sub-Type Styles

With the F.27, Fokker made a complete change in sub-type designations. The prewar alphabetical sequence was replaced with British-style Mark numbers. So, the first production version F.27 was an F.27 Mk 100 which progressed in a series up to the F.27 Mk 700. With the F28, Mark numbers jumped into the thousands. So, the first production model F28 was the F28 Mk 1000. That series ran a high as the F28 Mk 6000 (the F28 Mk 6600 being an unbuilt sub-type for the Japanese market).

Fokker Post-WW2 Role-Modifier Designations

Likewise, the postwar style of role-modifier designations were quite different. Applied as suffix letters, these modifiers revealed a fairly major change within a Mark or a role changes.

Some civilian examples are:

 - F28 Mk 3000C : 'C' for Cargo, referring to a freight door added to a basic Mk 3000
 - F28 Mk 3000R : 'R' for Rekkend (extended), ref. to long-span wing on Mk 3000 fuselage
 - F28 Mk 3000RC: 'C' for Cargo, refers to a freight door fitted to the F28 Mk.3000R
 - Fokker 100 QC: 'QC' for Quick Change combi cargo-to-passenger carrying capability

There are a larger number of role-modifier designation suffixes among military Fokkers. Examples are:

 - 'M' for Military - eg: F.27-300M and F.27-500M military cargo a/c
 - 'MA' for (??) - eg: unbuilt F.27MA project with rear-loading doors [6]
 - 'MS' for Military STOL - eg: F.27MS, slatted, spoilered F.27MA deriv.
 - 'MPS' for Maritime Patrol Surveillance - eg: F.27MPS patrol aircraft
 - 'MPA' for Maritime Patrol Aircraft - eg: F.27MPA based on F.27-200
 - 'MAR' for Maritime - alternative designation for the F.27MPA (above)
 - 'ME' for Maritime Enforcer - eg: unbuilt ASW/ASV F.27-200ME project
 - 'ME2' for Maritime Enforcer 2 - eg: F50ME2, as above but F50 airframe
 - 'U' for Utility transport - eg: F50U and F60U

Since the bankruptcy of Fokker, there have been several attempts to restart production as well as modification programs proposed for existing types. This results in additional role-modifier suffixes like 'NG' (Next Generation) for proposed new-production models, Fokker 50 Freighter for JetIreland's proposed STC conversion, etc. These 'outside' suffixes are beyond our scope but will be noted in the type listings.

Separate posts with listings of specific Fokker type letter designation sequences will follow.

____________________________________________


[1] 'V' designations (including some compound designations) were 'recycled' briefly in the revised 1920-1925 Fokker designation system.

[2] There is one anomaly within the post-WWI F-serie - the F.IV parasol fighter of 1922. This D.X derivative was trialled by the US Army as its PW-5 but, other than being sold for export, the F.IV was in no sense a 'commercial aircraft'. Still, the rest of the 'F' serie were (or, at least, began as) commercial aircraft designs.

[3] The term 'Kruiservliegboot' (Cruiser flying boat) was applied to the 1923 B.II flying boat.

[4] In the Idflieg designation system, each airframe supplier had its aircraft type numbers applied sequentially. As a result, the designation 'D.I', as an example, meant little without mention of the specific D.I's manufacturer.

[5] From that F27 Mark 050, F27 Mark 0503, F27 Mark 0604 sequence, a missing 'F27 Mark 0x03' can be inferred.

[6] Presumably, in the F.27MA project designation, the 'A' in 'MA' simply indicates a major variation on the 'M' for Military in F.27M.

____________________________________________

Some Sources:

Articles

'Fokker Vliegtuigontowerpen 1920-1944', Frits Gerdessen, Luchtvaartkennis 2/2008, pp. 63-72

'Halfway-House Fokker: Story of the D XXI Fighter', Air Enthusiast Vol. 1, 1971, pp. 152-159

'The Fokker Fours: Development of the Largest Fokkers', Air Enthusiast Vol. 1, 1971, pp. 292-296

Books

Combat Aircraft of the World, JWR Taylor, Putnam, 1969

Combat Aircraft of World War Two, EC Weal, JWR Weal, BF Barker, Gage/Arms & Armour, 1977

Complete Book of Fighters, William Green & Gordon Swanborough, Salamander, 1996

Encyclopedia of the World's Commercial and Private Aircraft, David Mondey, Aerospace Publishing, 1981

Fokker D.VI, Windsock Datafile 84, P.M. Grosz, Albatros Productions, 2000

German and Austro-Hungarian Aircraft Manufacturers 1908-1918, Terry C. Treadwell, Amberley, 2010

German Aircraft of the First World War, Peter Gray & Owen Thetford, Putnam, 1962

Illustrated Encyclopedia of Propeller Airliners, Bill Gunston, Exeter/Phoebus, 1981 {??}

War Planes of the Second World War series, William Green, MacDonald, 1961-1962
 - Fighters, Volume One, 1961 (Tenth impression, 1972)
 - Fighters, Volume Three, 1961 (Sixth impression, Jan 1970)
 - Floatplanes, Volume Six, 1962 (revised/reprinted 1968)

Outside Websites (a sampling)

Dutch Aviation - http://www.dutch-aviation.nl

Their Flying Machineshttp://flyingmachines.ru/index.htm

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #1 on: April 11, 2018, 03:29:57 pm »
Fokker 'M' Series Aircraft - WWI Corporate Designations

Fokker 'M' for 'Militär' designations lasted from 1912 to 1916. Within Fokker, these 'M' designations would be used interchangeably with German and Austro-Hungarian military designations. Each 'Militär' designation consisted of a capital 'M' followed by an individual type number in Arabic numerals. The 'M' series ran from the M 1 observation monoplane of 1913 to the M 22 (D.V) biplane fighter of 1916.

Individual aircraft designs within the 'M' Series were assigned sequential Roman numeral type numbers. Many sources render these designations with a period (or dash) between the 'M' and type number. For consistency, I have chosen to use a simple space.

Sub-type modifier letters were applied within the 'M' series. Initially, this was done by applying an 'A' suffix to the type numbers. The earliest sub-type letter application was for the M 3A (indicating an engine type change from the original M 3). However, that M 3A is the sole example of this style of suffix letter application that I have encountered within the 'M' series designations.

During this period, Fokker followed a policy of designing parallel developments powered by air- and liquid-cooled engines. So, for example, the M 16 and the M 18 had liquid-cooled inlines while their equivalents with air-cooled rotary engines were the M 17 and M 19.

Comparatively minor variations within each type number would be assigned sub-type letters (sometimes in combinations) designating such variations. First-position sub-type letters were as follows:

First-Position Size Modifier Suffixes

K for Kurz - Short-span wings; eg: M 5K
L for Lange - Long-span wings; eg: M 5L

First-Position Wing-Bay Modifier Suffixes

E for Einstielig - Single-bay wings; eg: M 10E
Z for Zweistielig - Twin-bay wings: eg: M 10Z

Second-position sub-type letters (in combination) were as follows:

Second-Position Armament Modifier Suffix

MG for Maschinengewehr - Machine gun armed; eg: M 5K/MG

Second-Position Control-Type Modifier Suffixes

F for Flügelverzerrung - Wing-warping control, eg: M 17ZF
 - Flügelverzerrung literal translation is 'wing distortion'

K for Klappenverdrehung - Aileron control, eg: M 18ZK
 - Klappenverdrehung literal translation is 'flap-twisting'

An odd designation variation was the M 19 (Boelcke) - an M 19 modified specifically to suit Hauptmann Oswald Boelcke, commander of Jasta 2. This prototype was fitted with a Siemens Sh I in place of the M 19/D III's Oberursel U III. However, since both powerplants were air-cooled rotary, no type number change was required under the 'M' type designation system. The unique application of the parenthetical 'Boelcke' to the designation was either a homage to the German ace or Fokker taking an opportunity to cash-in on a famous name.

By 1916, Idflieg-assigned military designations had begun to dominate. In the same year, Fokker switched to a 'V' for Versuchflugzeug (qv) series of internal designations for experimental designs.

(Update: Tuizentfloot has noted that, at the end of 1916, the 'M' series was replaced by the internal 'D' series. Fokker's internal 'D' series designations - not to be confused with the unrelated Idflieg 'D' series - lasted until July 1917 at which point the 'V' series began.)

As always, any corrections or additions are most welcome. Of particular interest are details on the Fokker M 13 ... of which, I can find no mention at all. (Thanks for hesham for details on the Fokker M 11 and M 12!)

____________________________________________


Fokker 'M' Series Aircraft Designations

Fokker M 1 - 1912 2-seat tandem monoplane trainer, x ~25
 - M 1: 1 x 100 hp Argus As I 4-cyl inline, span 13.60 m
 -- Military vers. of the 1911 Fokker 'Spinne' (Spider)
 -- http://www.dutch-aviation.nl/pictures/Fokker/Military/Fokker%20M1%20de%20Waal%20and%20Kuntner.jpg

Fokker M 2 - 1913 2-seat tandem monoplane trainer, x ~4
 - M 2: 1 x 100 hp Mercedes 4-cyl inline, span 13.20 m
 -- M 2 was a Fokker M 1 development, revised fuselage
 -- Luftstreitkräfte designation A (for reconnaissance)
 -- AHG Fokker claimed 4 (+ 6 later) M 2s, no evidence
 -- http://www.dutch-aviation.nl/pictures/Fokker/Military/Fokker%20M2%20vervoer.jpg
 -- 2v: http://ourairports.biz/img/1243/image084.jpg

Fokker M 3 - 1913 2-seat low-wing monoplane trainer, x ?
 - M 3: 1 x 100 hp Argus As I 4-cyl. tractor, span 13.85 m
 -- M 2 devel., steel-tube fuselage, rejected by military
 - M 3A: 1 x 70 hp Renault V-8,* with add'l rudder surface
 -- * M 3A reused engine from crashed W 1 flying boat, x 1
 -- Russian M 3A order seized, used by Fokker flying school
 -- http://ourairports.biz/img/1243/image087.jpg
 -- https://upload.wikimedia.org/wikipedia/commons/3/34/Fokker_Spin.jpg

Fokker M 4 - 1913 2-seat mid-wing monoplane trainer, x 1*
 -- * 6 x ordered, later cancelled (initial config.)**
 - M 4: 'Stahltaube' M 3 repl., several config. changes
 - M 4: 1 x 100 hp Mercedes.D I inline,*** span 14.00 m
 -- ** Init. wing-warping, later ailerons were fitted
 -- *** 120 hp Argus As.II mentioned as engine option
 - M 4: 1 x 120 hp Argus As.II, rear fuselage covered
 -- http://flyingmachines.ru/Images7/Aerodrome/388.jpg [uncover rear fuse]
 -- http://flyingmachines.ru/Images7/Aerodrome/388-1.jpg

Fokker M 5 - 1914 single-seat shoulder-winged scout
 - M 5: Trainer/aerobatic a/c, inspired by Morane Type H
 - M 5: 1 x 80 hp Oberursel U O rotary, spans varied
 - M 5 adopted for military use as Fokker A II & A III
 - M 5L: (Lange) long-span vers. recce a/c, span 10.90 m
 -- Fokker- &  Halberstadt-built M 5L retro. desig. A II
 -- http://www.dutch-aviation.nl/pictures/Fokker/Military/Fokker%20M5L.jpg
 - M 5K: (Kurz) short-span vers. recce a/c, span 8.95 m
 -- M 5K retrospectively designated Fokker A III, x 10
 - M 5K/MG: (Kurz/Maschinengewehr) armed version, x 5
 -- M 5K/MG armed with 1 x 7.92 mm Parabellum MG14 mg
 -- The M 5K/MG acted as prod'n prototypes for the E I

Fokker M 6 - 1914 2-seat parasol monoplane scout, x 1
 - M 6: 1 x 80 hp Oberursel U O rotary, wing area 18 m2
 - M 6: Tandem 2-seat, raised-wing deriv. of 1-seat M 5
 -- M 6 prototype only, lost in a 1914 flying accident
 -- http://www.dutch-aviation.nl/pictures/Fokker/Military/Fokker%20M6.jpg

Fokker M 7 - 1915 sesquiplane scouting aircraft, x 20
 - M 7: Effectively a sesquiplane vers. of the M 5
 - M 7: 1 x 80 hp Oberursel U 0, span (quotes vary)*
 -- Sources vary: 9.94 m, 10.80 m, 11.70 m all given
 -- * Sources vary on span, M 7 first flew Jan 1915
 -- M 7 scouts served with the Kaiserliche Marine
 -- W 4 was a twin-float seaplane derivative of M 7
 -- B.I: M 7 German and Austro-Hungarian mil. desig.
 - B.I (M 7) Series 01, Luftstreitkräfte, x 3
 - B.I (M 7) Series 02, Kaiserliche Marine, x 7
 - B.I (M 7) Series 03, KuK Luftfahrtruppen, x 15

Fokker M 8 - 1915 side-by-side 2-seat scouting a/c, x ~80
 - M 8: 1 x 80 hp Oberursel U O rotary engine, span 12.12 m
 - M 8: aka A I, shoulder-winged monoplane trainer/spotter
 -- http://www.dutch-aviation.nl/pictures/Fokker/Military/Fokker%20M8-A1%20trainer.jpg

Fokker M 9 - 1915 3-seat twin-boomed fighter, x 1
 - M 9: 2 x M 7 fuselage with a push/pull nacelle*
 - M 9: 2 x push/pull 80 hp Oberursel U O, span 12.71 m
 -- * Pilot in nacelle + 1 x gunner in each boom nose
 -- http://www.dutch-aviation.nl/pictures/Fokker/Military/Fokker%20M9%20front.jpg

Fokker M 10 - 1915 2-seat recce & trainer sesquiplane, x ~35
 - M 10: 1 x 80 hp Oberursel U O, span 11.01 m, aka B.I
 - M 10 : Shorter-span,equal-span version of Fokker M 7
 - M 10E : (Einstielig) Single-bay sesquiplane version
 -- KuK Luftfahrtruppen desig. B.I (as M 7), span 11.30 m
 -- https://upload.wikimedia.org/wikipedia/commons/f/fb/Fokker_B-1_M10e.jpg
 - M 10Z : (Zweistielig) 2-Bay, equal-span biplane vers.
 - M 10Z: 1 x 100 hp Oberursel U I, span 11.90 m, aka B.II
 -- NB: Some sources say vers. desig, determ'd by engine
 - M 10E: Sesquiplane, Oberursel U O or U I engine
 - M 10Z: Equal-span biplane, Oberursel U O or U I

Fokker M 11 - [Project] 1915 recce/training biplane
 - M 11: 1 x 100 hp Oberursel U I rotary, span (??) m

Fokker M 12 -  1915 reconnaissance sequiplane, x 1
 - M 11: 1 x (??) hp Mercedes D.(??) inline, span (??) m

Fokker M 13 - (??)

Fokker M 14 - 1915 single-engined monoplane fighter
 - M 14: 1 x Oberursel rotary, span 9.52 m, x 68
 -- aka Fokker E I, development of Fokker M 5K
 -- aka Fokker E II, 1 x 80 hp Oberursel U O
 -- aka Fokker E III,* 1 x 100 hp Oberursel U I
 -- * Increased fuel capacity (compared w/ E II)
 -- M 14 armament: 1 x 7.92 mm Spandau lMG.08 mg

Fokker M 15 - 1915 single-engined monoplane fighter
 - M 15: 1 x 160 hp Oberursel U III, span 10.00 m
 - aka Fokker E IV, 2 x 7.92 mm Spandau LMG.08, x 49

Fokker M 16 - 1915 single-engined biplane recce-fighter
 - M 16 : Single- or 2-bay biplane, span up to 11.60 m
 - M 16E: Single-seat fighter, fuselage filled wing gap
 - M 16E: 160 hp Austro-Daimler or 100 hp Mercedes D.I
 -- Only prototype M 16E built despite A-H order for 26
 - M 16Z: Twin-bay version, 1 x 160 hp Mercedes D.III
 -- 2nd M 16Z prototype ordered by A-H, later cancelled

Fokker M 17 - 1915 single-engined recce-fighter biplane, x 181
 - M 17 : Unarmed equivalent to M 18 biplane fighter prototype
 - M 17 : 1 x 100 hp Oberursel U I rotary, span ?? m*
 -- * Orig. with unstaggered wings, stagger later applied
 -- M 17 with stagger & cut-down fuselage built as B II, x 62
 -- aka M 17K (Kurz), Austro-Hungarian KuK designation B II
 - M 17E : M 16E deriv. with 80 hp Oberursal U 0, no prod'n
 - M 17Z : Strengthened wing, tested Adlershof 17 April 1916
 - M 17ZF: Short-wing, long-fuselage prod'n vers., aka D.II
 - M 17ZF: 1 x 100 hp Oberursel rotary engine, span 8.75 m*
 -- http://www.all-aero.com/images/stories/fokkerd2.jpg
 -- Versuchsdoppeldecker (experimental biplane) M 17 mod.
 -- 1916 M 17 mod., single-bay and a swept upper wing**
 -- ** Engine poss. Oberursel U I, U III, or Siemens Sh I

Fokker M 18 - 1916 single-seat, single-engined biplane fighter
 - M 18: Armed vers. of M 17 single-seat reconnaissance biplane
 - M 18Z: 1 x 120 hp Mercedes D.II 6-cyl. inline, span 9.05 m
 -- M 18 armament: 1 x 7.92 mm LMG.08/15 mounted on upper wing
 - M 18ZF: (Zweistielig/Flügelverzerrung) Two-bay/Wing-warping
 - M 18ZK: (Zweistielig/Klappenverdrehung) Two-bay/Ailerons *
 -- * Aileron vers. specifically devel. to German Army request
 -- M 18Z was prototype for AH D I fighters, production x ~130

Fokker M 19 - 1916 single-seat biplane fighter, x 210 (or 291?)
 - M 19: 1 x 145 hp Oberursel U III 2-row rotary, span 9.05 m*
 -- aka D III, essentially wings of D I mated to D II fuselage
 - M 19 (Boelcke): Siemens Sh I, modified for Oswald Boelcke

Fokker M 20 - 1916 single-seat, single-engined fighter, x 1
 - M 20: Flown Oct 1916, 160 hp Mercedes, aileron controls*
 -- http://fandavion.free.fr/fokker.htm
 -- * Also claimed part-built before project cancelled **
 -- ** Wings only, intended for an experimental monoplane

Fokker M 21 - 1916 single-seat, single-engined biplane fighter
 - M 21: 1 x 160 hp Mercedes D.III 6-cyl. inline, span 9.70 m
 -- aka D.IV, an improved, enlarged, more powerful Fokker D.I

Fokker M 22 - 1916 single-seat, single-engined biplane fighter
 - M 22: 1 x 100 hp Oberursel U I rotary engine, span 8.75 m
 -- aka D.V, Reinhold Platz design with sweptback upper wings
 -- Designed as a fighter, employed solely as advanced trainer

Fokker M 23 - Designation not applied
 - M 23: Erroneously assoc. with D.VI
 -- 'M' series had ended by this time

Fokker M 24 - Designation not applied
 - M 24: Erroneously assoc. with Dr.I
 -- 'M' series had ended by this time
____________________________
« Last Edit: April 13, 2018, 02:10:13 pm by Apophenia »

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #2 on: April 11, 2018, 03:33:26 pm »
Fokker 'W' (for Wasser) Aircraft Designations

A small series of watercraft were built by Fokker in Germany. The first was a flying boat racer intended for the 1913 Schneider Trophy to be held in Monaco. The Fokker W 1 was not a success and quickly crashed. The other 'W' series aircraft were floatplanes. However, there has been some confusion over the identity of the W 3.

Most sources regard the W 3 and W 4 floatplane as identical. But it seems that the W 3 was actually a hydroplane which 'recycled' the floats from the failed W 2 seaplane. None of these experiments could be considered successful and Fokker made no further seaplanes until his return to the Netherlands.

__________________________________________________________


Fokker 'W' Designations - 1913-1915 Flying Boat and Float Planes

Fokker W 1 - 1912 biplane pusher flying boat racer, x 1
 - W 1: 2-seat sesquiplane, upper wings based on Spinne
 -- W 1 for Monaco 1913 Schneider Cup, crashed on trials
 - W 1: 1 x 100 hp* Renault V-8 pusher, span 16.20 m
 -- * Planned, 70 hp Renault installed for trials
 -- https://modelbrouwers.nl/media/cache/d5/fa/d5fa10420fb752555e6caf53acada926.jpg
 -- https://images.memorix.nl/nda/thumb/620x620/fb360f4c-fdef-ebda-7fbb-65939996e92e.jpg

Fokker W 2 - 1913 tractor biplane twin-float seaplane, x 1
 - W 2: 2-seat sesquiplane, fuselage suspended betw. wings
 - W 2: 1 x 120 hp Daimler D II inline engine, span ?? m
 -- W 2 featured adj. fuselage position, small tail float
 -- http://www.dutch-aviation.nl/pictures/Fokker/Military/Fokker%20W2.jpg
 -- https://modelbrouwers.nl/media/cache/8f/16/8f164c10631a5e83ba5d898555d35526.jpg

Fokker W 3 - Propeller-driven twin-float pontoon hydroplane
 -- https://www.secretprojects.co.uk/forum/index.php/topic,16947.msg163542.html#msg163542
 -- NB: Fokker W 4 is frequently mis-identified as W 3, eg:
 -- 3v: https://modelbrouwers.nl/media/cache/08/de/08dee5fd40e4d60116a76c32800904c9.jpg
 -- W 3 was tested on the Schweriner See, re-used W 2 floats

Fokker W 4 - 1915 twin-bay sesquiplane floatplane, x 1
 - W 4: Orig., Fokker M 7* deriv. w/ single-bay wings
 -- * The W 4 fuselage was identical to M 7 and M 10
 - W 4: Orig, 1 x 80 hp Oberursel U O, span 11.70 m**
 -- ** Likely remained unflown with short-span wings
 -- https://modelbrouwers.nl/media/cache/ef/11/ef119064473e0f56fbba46f47e4ed225.jpg
 - W 4: Mod. with new, extended span, two-bay wings
 - W 4: Mod. 1 x 100 hp Oberursel U 1, span 15.19 m
 -- Revised engine installation as per Fokker M 10
 -- http://flyingmachines.ru/Images7/Aerodrome/076.jpg
 -- https://modelbrouwers.nl/media/cache/ef/11/ef119064473e0f56fbba46f47e4ed225.jpg
 -- http://www.hollandaircraft.nl/F88%20Fokker%20W.4.pdf


____________________________________________


Fokker 'W' (for Watervliegtuig) Aircraft Designations

As already noted, after returning to the Netherlands, Fokker applied a single 'W' designation. This was the unbuilt W.II twin-float airliner. This was an early-stage concept also referred to as the "Avion commercial".

That W.II may have been a 'working designation' intended to be replaced by the 'permanent' designation F.W. when built. Alternatively, F.W. may have been another 'working designation' - for, by 1923, this proposed civil cabin variant of the T.II-W/T.III-W torpedo-bombers was being designated as T.III-F. [1]

Prior to 1925, Fokker generally applied the 'W' (for Watervliegtuig) in compound designations. These were F.W. (Fokker Watervliegtuig/Fokker Water aircraft or floatplane) and V.W. which seems to stand for 'Verkeers Watervlieg' (Commercial Floatplane). The F.W. 'series' has odd gaps - starting with the numberless F.W. before jumping to F.W.3. The absence of an 'F.W.2' variant is doubly odd since the alternative designation for the F.W. was W.II. Weirder still is the V.W. 'series'. AFAIK, there is only the V.W.3 - if 'V.W.' and 'V.W.2' concepts existed, they go unrecorded.

For the record, the post-WW1 Fokker 'W' designations cover the following:

F.W. - [Project] 192? single-engined 6-pax cabin airliner floatplane
 - F.W. : Prob. orig. T.II-W deriv., later adapted T.III-W airframe
 -- aka W.II (below), by 1923 project was redesignated as T.III-F

F.W.3: [Project] 192? single-engined twin-float torpedo bomber
 -- F.W.3 realized in 1923 as T.III floatplane for Portugal [2]

W.II - [Project] 192? "Avion commercial" (Commercial Aircraft)
 - W.II: 6-pax airliner on twin floats, same as F.W. (above)

V.W.3 - [Project] 1920 twin-engined, twin-float airliner design
 - V.W.3: "verkeersvliegtuig op drijvers" (commercial aircraft on floats)

After these early '20s compound designations applied to unbuilt projects, Fokker added the 'W' for Watervliegtuig as a modifier suffix to its designations.

____________________________________________

[1] As a designation style, T.III-F appears to be unique - the 'F' being applied as a role modifier.

[2] F.W. may be another example - akin to the F.IV fighter - where the 'Commercial' aspect of the 'F' designater referred to its export potential rather than to civilian applications.

____________________________________________

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #3 on: April 11, 2018, 03:41:58 pm »
Fokker V-type Designations - German Versuchflugzeug (Prototype) Designations

Beginning in 1916, Fokker prototype designs were assigned 'V' designations [1] ... although its is not entirely clear what that 'V' stood for. The commonest explanation is the 'V' was  for Versuchflugzeug (Prototype aircraft). However, it has also been suggested that 'V' was first intended to stand for Verspannungsloser (or 'wing without bracing' - since the Fokker V 1 to V 3 were cantilever biplanes while the  V 4 (and, initially, the V 5) were cantilever triplanes. Then again, the Fokker 'V' sequence might well have begun as a Verspannungsloser series before morphing into Versuchflugzeug.

The 'V' series designations commence with Reinhold Platz's first full design for Fokker - V 1 - but that is probably just coincidence. In any case, Fokker 'V' designations ran in a roughly chronological sequence. That 'V' designation sequence was continued until July 1919 at Fokker's Schwerin plant. As with airframe completion, the 'V' sequence was continued for a time after Fokker's return to the Netherlands.

The last (chronologically) of the V-type designations seems to have been applied to the prototype for Fokker's D.X parasol-winged fighter - the V 41 of 1923 (although construction of the V 41 had actually begun in Germany in 1918). Numerically, Fokker's V-type designations ran from the 1916 Fokker V 1 'technology demonstrator' to the 1919 V 45, prototype for the Fokker F.II high-winged airliner.

Fokker V-types - Dutch Prototype/Project Designations - 1920-1925

The V 45, like other Fokker projects, was re-designated in the revised designation system of 1920-1925. As noted above, the V 45 acted as the Fokker F.II prototype. But, first, the V 45 was redesignated as the V.I under this new Fokker system. In that revised 1920-1925 Fokker designation system. the meaning of 'V' becomes a little confused. It might be suggested that, here, 'V' stands for something generic like 'Vliegtuig' for 'Airplane'. The problem is that most 'V' designations were synonymous with more specific role designaters.

That suggests that Fokker was restarting the 'V' for 'Versuchflugzeug' line of designations (albeit in a new numbering sequence using mainly Roman numerals). [2] As noted above, in the new sequence, the V.I was the prototype F.II airliner. The V.II was the prototype F.III airliner. The V.3 - note the shift to Arabic numeral - was a 1920 high-wing fighter later abandoned. Then the V.3 designation - still with an Arabic numeral - was transferred to an airliner project (for a scaled-down F.IV). That leaves us with the possibility that, after the V.3 fighter was abandoned, the 'V' meaning became Verkeersvliegtuigen (airliner) and/or Vrachtvliegtuig (Cargo aircraft).

That last supposition is supported by the use of a compound designation for V.W.3 - a 1920 project for a twin-engined, twin-float airliner. Here, the designater seems to indicate 'Verkeers Watervlieg'. But does anyone know for sure? For completeness, the 1920-1925 Fokker designation system 'V' prototypes and projects are listed directly below. Beneath that I will begin the original 'V' designation sequence.

Fokker V Designations (1920-1925 - Netherlands)

Fokker V.I - Re-designated V 45, prototype for F.II airliner

Fokker V.II - Prototype for F.III airliner

Fokker V.3 - [Project] 2 x  1920 projects (desig. re-used)
 - V.3 (1): 1920 high-winged monoplane fighter
 - V.3 (2): Sim. to F.IV but smaller, open cockpit

V.W.3 - [Project] 1920 twin-engined, twin-float airliner

___________________________________________________________________


[1] For a short time prior to this, as internal designations, Fokker used a  'D' series with Roman numerals . This was replaced by the 'V' series designations.

[2] Presumably, 'V' retained its versuch implications - since the Dutch would say prototype, experimenteel, or proefondervindelijk to describe experimental airframes.

___________________________________________________________________


Fokker V Designations (1916-1919 - Germany and Netherlands)


Fokker V 1 -- 1916 single-seat cantilever biplane fighter
 - V 1 : 1 x 110 hp Le Rhône* rotary, span 7.87 m,** x 1
 -- V 1 had no interplane struts, Reinhold Platz design
 -- * Some sources say 100 hp Oberursel U I rotary
 -- ** Jemiba lists 8.60 m span, others list 8.00 m
 -- 3v: http://flyingmachines.ru/Images7/Fighters/222-2.jpg

Fokker V 2 -- 1917 single-seat cantilever* biplane fighter
 - V 2 : 1 x 120 hp Mercedes D.II, span 7.87 m,** x 1
 -- * No interplane struts, upper wing swept back, Platz
 -- ** Jemiba lists 9.30 m span and 160 hp Daimler engine
 -- 3v: http://flyingmachines.ru/Images7/Fighters/222-4.jpg

Fokker V 3 -- 1917 single-seat cantilever biplane fighter
 - V 3 : V 2 devel., convent'l tail, non-adjust. wing incidence
 -- V 3: Presum. 1 x 120 hp Mercedes D.II, span 9.20 m, x 1
 - NB: In the past V 3 mistakenly applied to V 4 triplane

Fokker V 4 -- 1917 single-seat cantilever* triplane fighter
 - V 4 : 1 x 110 hp Le Rhône rotary, span 6.20 m, x 1**
 -- * Initially no struts, prototype nr.2 for Dr.I fighter
 -- http://flyingmachines.ru/Images7/Fighters/222-6.jpg
 -- Fokker V 4 aka V IV (older-style internal designation)
 -- ** V 4 (with V 5 wing set) deliv'd to Austria-Hungary

Fokker V 5 -- 1917 single-seat cantilever triplane fighter
 - V 5 : 1 x 160 hp Goebel Goe.III rotary, span 6.73 m, x 3*
 -- Differed from V 4 in its straight tailplane leading edge
 - V 5 : aka D.VI or (Idflieg service designation) F.I
 -- Fokker V 5 aka F.I (Idflieg) and D.VI (older-style internal desig.)
 -- V 5 / F.I 101/17: Tested to destruction at Adlershof, Aug 1918
 -- V 5 / F.I 102/17: Personal mount of Manfred von Richthofen
 -- http://flyingmachines.ru/Images7/01-Istreb-2/Osprey/56-3.jpg
 -- V 5 / F.I 103/17: Personal mount of Werner Voss, also JG 1
 -- http://flyingmachines.ru/Images7/Crowood/115-3.jpg
 -- https://static.thisdayinaviation.com/wp-content/uploads/tdia/2014/09/winner_1102.jpg

Fokker V 6 -- 1917 single-seat cantilever triplane fighter
 - V 6 : 1 x 120 hp Mercedes D.II * 6-cyl., span 7.90 m, x 1
 -- * Some sources say 160 hp Mercedes D.III 6-cyl. inline
 -- Differed from V 4 in its straight tailplane leading edge
 -- Fokker V 6 aka D.VII (older-style internal designation)
 -- http://flyingmachines.ru/Images7/Fighters/222-8.jpg
 -- 3v: http://flyingmachines.ru/Images7/Fighters/222-7.jpg

Fokker V 7 -- 1917 single-seat cantilever triplane fighter
 - V 7 : Various engines, span 7,20 m, led to Dr.I fighter
 - V 7/I : 1 x 150/160 hp Siemens-Halske Sh III 11-cyl rotary
 -- V 7/I, aka V 7S, Wn 1788, converted into a standard Dr.I
 - V 7/II : 1 x 160 hp Gnome Monosoupape 9 Type N 9-cyl rotary*
 -- Some sources say V 7/II (Wn 1830) had Oberusal U III copy
 - V 7/III: 1 x 170 hp Goebel Goe III 9-cyl. rotary engine
 -- V 7/III : Werk nummer 1919, aka V 7G ('G' for Goebel)
 - V 7/IV : Wn 1981 (A-H 90.04), provided engineless to MAG**
 -- ** Hungarian abbrev. for Magyar Altalanos Gepgyar RT ***
 -- *** In German, Ungarische Allgemeine Maschinenfabrik AG
 -- MAG fitted V 7/IV with 145 hp Steyr-built Le Rhône rotary
 -- http://flyingmachines.ru/Images7/Putnam/German/350-2.jpg

Fokker V 8 -- 1917 single-seat tandem-winged, quintrupriplane
 - V 8 : 1 x 120 hp Mercedes D.II 6-cyl.,* span 7.90 m, x 1
 -- * Some sources say 160 hp Mercedes D.III 6-cyl. inline
 -- V 8 (Wn 1798) ordered Aug 1917, not flown until Oct 1917
 -- V 8 employed V 6 components, presum. a tech demonstrator
 -- http://flyingmachines.ru/Images7/Fighters/223-1.jpg
 -- 3v: http://www.airwar.ru/image/idop/fww1/fokv8/fokv8-1.gif

Fokker V 9 -- 1917 single-seat biplane fighter, span 7.70 m, x 1
 - V 9 : 1 x 80 hp Oberursel U.O, later 110 hp Ur.II rotary
 -- V 9 was Dr.I biplane/sequiplane* deriv., Nieuport V-struts
 -- * Lower wing had single spar, upper wing had twin spars
 -- V 9 w/n 1931 assigned Idflieg desig. D.VI 1630/18 for P/O**
 -- ** NB: Actual D.VI prototype was April 1918 D.VI 1630/18
 -- V 9 design was developed into improved V 33 in summer 1918
 -- http://flyingmachines.ru/Images7/Putnam/German/352-1.jpg

Fokker V 10 - 1917 Dr.I triplane fighter devel., span 7.70 m
 - V 10: Standard Dr.I (Wn 1852) w/ 145 hp Oberursel UR.III, x 1
 -- Some sources claim V 10 orig. was to have Mercedes D.III

Fokker V 11 - Dec 1917 single-seat biplane fighter, span 7.70 m
 - V 11: D.VII series prototype, 1 x 160 hp Mercedes D III, x 1

Fokker V 12 - 1918 single-seat biplane fighter, span ?? m, x 1
 - V 12 : 1 x 160 hp Steyr rotary (experimental Le Rhône copy)
 -- V 12 was related to V 9 (Dr.I-derived biplane/sequiplane)

Fokker V 13 - 1917 single-seat biplane/sequiplane fighter, x 2
 - V 13: Higher-powered V 9, developed into D.VI series fighters
 - V 13/I : 1 x 145 hp Oberursel Ur.III, span 7.62 m, w/n 1983
 -- NB: Orig. V 13/I desig. was V 14; labelled as Fokker D VI
 - V 13/II: 1 x 160 hp Siemens-Halske Sh.III 11-cyl, w/n 2054

Fokker V 14 - 1918 single-seat biplane fighter, span 7.62 m
 - V 14 : 1 x 160 hp Steyr rotary (exper'l Le Rhône copy), x 1
 -- V 14 was a V 9 development directly related to the V 12
 -- Many sources claim the V 14 was never built (or completed)

Fokker V 15 - (??) No details
 -- Most sources state that no V 15 was ever built

Fokker V 16 - 1918 single-seat biplane fighter, span ?? m, x 1
 - V 16 : 1 x 110 hp Oberursel UR II 9-cylinder rotary
 -- V 16 was a V 9 development, similar to V 12 and V 14

Fokker V 17 - 1918 single-seat shoulder-winged monoplane, x 1
 - V 17: 1 x 110 hp Oberursel UR II, single spar, span 7.19 m
 -- V 17 derived from Dr.I components, poor downward vision
 -- http://flyingmachines.ru/Images7/Fighters/225-3.jpg

Fokker V 18 - 1918 single-seat biplane fighter (unarmed), x 1
 - V 18: 1 x 160 hp Mercedes D.III 6-cyl., span 8.70 m

Fokker V 19 - 191? a monoplane, 1 x 110 hp Le Rhone rotary*
 -- * According to Jos Heyman, other sources say not built

Fokker V 20 - 1918 single-seat shoulder-winged monoplane, x 1
 - V 20: 1 x 160 hp Mercedes D IIIa 6-cyl., single spar wing

Fokker V 21 - 1918 Fokker D.VII deriv., span 8.90 m, x 1
 - V 21: 1 x 160 hp Mercedes D IIIa 6-cyl., tapered wings

Fokker V 22 - 1918 Fokker D.VII deriv., span 8.90 m, x 1
 - V 22: 1 x 160 hp Mercedes D.III 6-cyl., 4-blade propeller

Fokker V 23 - 1918 single-seat shoulder-winged monoplane, x 1
 - V 23: 1 x 160 hp Mercedes D III 6-cyl., armed, span 8.78 m
 -- http://flyingmachines.ru/Images7/Putnam/German/357-2.jpg
 -- 3v: http://flyingmachines.ru/Images7/Fighters/225-5.jpg

Fokker V 24 - 1918 single-seat biplane fighter (unarmed), x 1
 - V 22: 1 x 240 hp Benz Bz.IVü* 6-cyl. inline, span 8.90 m
 -- * Some sources say 200 hp Benz Bz IV or Benz Bz V engine

Fokker V 25 - 1918 single-seat low-winged monoplane fighter, x 1
 - V 25: 1 x 110 hp Oberursel Ur.II rotary, span 8.73 m
 -- http://flyingmachines.ru/Images7/Putnam/German/358-2.jpg
 -- 3v: http://flyingmachines.ru/Images7/Fighters/227-2.jpg

Fokker V 26 - 1918 single-seat parasol monoplane fighter, x 1
 - V 26: 1 x 110 hp Oberursel U.II rotary, span 8.30 m
 -- V 26 prototype led to the service Fokker E.V / D.VIII

Fokker V 27 - 1918 single-seat parasol monoplane fighter, x 1
 - V 27: 1 x 195 Benz IIIb V-8, span 8.30 m, mod. into V 37
 -- V 27 was basically a Benz IIIb-powered vers. of the V 26
 -- V 27 participated in the second D types competition
 -- http://flyingmachines.ru/Images7/Putnam/German/360-1.jpg

Fokker V 28 - 1918 single-seat parasol monoplane fighter, x 1
 - V 28: 1 x 145 hp Oberursel Ur III or 160 hp Goebel Goe III
 -- V 28 to the same spec. as the slightly smaller Fokker V 26

Fokker V 29 - 1918 single-seat parasol monoplane fighter, x ?
 - V 29:  1 x 160 hp Mercedes D III,* span 9.50 m or 9.68 m**
 -- * Altern. engine for the V 29 was the 185 hp BMW IIIa
 -- ** 9.50 m was 13.60 m2 area, 9.69 m was 14.30 m area
 -- V 29 was basically parasol D.VII or an enlarged V 26/V 27
 -- http://flyingmachines.ru/Images7/Putnam/German/361-2.jpg

Fokker V 30 - 1918 glider conversion* of the Fokker V 26, x 1
 - V 30: Cockpit in extreme nose, exhibited at 1921 Paris Salon
 -- * P.D. Stemp claims desig. orig. used for D.VIII w/ Bz IIIa
 -- http://flyingmachines.ru/Images7/Putnam/German/362-1.jpg
 -- V 30 desig. is incorrect for "Schleppgleiter" flying bomb

Fokker V 31 - 1918 Fokker D.VII modified as glider tug, x 1
 - V 31: 2-seater mod., fitted with tow hook for V 30 glider

Fokker V 32 - 1918 fighter (no details)

Fokker V 33 - 1918 single-seat biplane fighter, span 7.24 m, x 1
 - V 33: As V 9 but with 2-spar lower wing + squared off rudder
 - V 33 : 1 x 110 hp Oberursel Ur II, later 145 hp Ur III rotary
 -- * Lower wing had single spar, upper wing had twin spars
 -- V 33 was employed as Anthony Fokker's personal aircraft**
 -- ** For Fokker's use, poss. 80 hp Le Rhône rotary conv.
 -- http://flyingmachines.ru/Images7/Putnam/German/363-1.jpg

Fokker V 34 - 1918 Fokker D.VII deriv., span 8.70 m, x 1
 - V 34: 1 x 185 hp BMW IIIa 6-cyl., V 33-style empennage
 -- Sent to Oct 1918 Adlershof trials, oval radiator front
 -- http://flyingmachines.ru/Images7/Fighters/228-2.jpg

Fokker V 35 - 1918 experimental fighter, few details
 - V 35: Some sources list as a 2-seat D.VII development*
 -- * 1 x 185 hp BMW IIIa 6-cyl., axle-fairing fuel tank
 -- P.D. Stemp speculates V 35 for long-range D.VIIF devel.

Fokker V 36 - 1918 Fokker D.VII deriV., span 8.935 m, x 2
 - V 36 : 1 x 185 hp BMW IIIa, D.VII- (vs V 33) style fin
 -- 2nd V 36 lacked wing cut-out, had axle-fairing fuel tank
 -- http://flyingmachines.ru/Images7/Putnam/German/364-2.jpg

Fokker V 37 - 1918 single-seat parasol monoplane fighter, x 1
 - V 37: Essentially an armoured* V 28, 1 x 195 hp Benz IIIb
 -- * Sheet-steel cockpit armour 'box', lrg. armoured spinner
 -- V 37 was created from abandoned, unarmoured V 27 airframe
 -- http://www.dutch-aviation.nl/index5/Military/index5-1%20V37.html
 -- http://flyingmachines.ru/Images7/Putnam/German/365-2.jpg

Fokker V 38 - 1918 2-seat biplane, prototype for Fokker C I
 - V 38: Enlarged, 2-seat devel. of Fokker D.VII, prod. +250
 - V 38 : 1 x 185 hp BMW IIIa 6-cylinder inline, span 10.50 m
 -- V 38 nr 3658 acted as prototype for Fokker C.I recce a/c
 -- http://www.dutch-aviation.nl/index5/Military/index5-1%20V38.html

Fokker V 39 -  1918-19 single-seat parasol sports aircraft, x 1
 - V 39: 1 x 110 hp Le Rhône (some claim a Gnome ?), span 7.00 m
 -- V 39 was effectively a scaled-down, lightened D.VIII fighter
 -- 3v: http://www.collectors-edition.de/FokkerD7/2004-12/1532.jpg

Fokker V 40 - [Project] Flying bomb, towed by a D.VII fighter
 - V 40 (1): No detail, said to lead to Fokker V 42 glider
 -- V 40 (1) presum. the same as "Schleppgleiter" flying bomb

Fokker V 40 -  1918-19 single-seat parasol sports aircraft, x 1
 - V 40 (2): 1 x 35 hp Anzani, span 5.90 m; a reduce-scale V 39
 -- 3v: http://www.collectors-edition.de/FokkerD7/2004-12/1531.jpg

Fokker V 41 - 1921* single-seat parasol monoplane fighter
 -- * Completion date, constr. begun in wartime Germany
 - V 41: 1 x 300 hp Hispano-Suiza 8Fb,** span 14.00 m
 -- ** Wartime plan was for 1 x 185 hp BMW IIIa 6-cyl.
 -- Enlarged D.VIII, V 41 prototype postwar D.X fighter

Fokker V 42 - 1919 (Germany), single-seat seaplane* glider
 - V 42: Shoulder-wing monoplane glider, span 8.50 m,  x 1
 -- * V 42 could also be mounted on a wheeled undercarriage
 -- V 42 built late 1918-early 1919, tested summer 1920**
 -- ** For take-off, glider towed behind high-speed motorboat
 -- According to LetLetLet, orig. as WWI V 40 flying bomb concept

Fokker V 43 - 1919 single-engined 2-seater parasol trainer
 - V 43: Designed by Reinhold Platz, side-by-side seating
 -- aka S.I prototype, 1 x 75 hp Mercedes 6-cyl, span 12.70 m

Fokker V 44 - 1919 [Project] 1-2 crew/5 pax monoplane airliner
 - V 44: 1 x 185 hp BMW IIIa 6-cylinder inline, span 20.00 m
 -- V 44 begun but not completed,* aka F.I (Fokker not Idflieg)
 -- Open-seating V 44 abandoned in favour of closed cabin V 45
 -- * Despite this, various photos are claimed to be V 44**
 -- ** Dutch Aviation ill. V 44 w/ the BAT F.K.26 prototype!
 -- http://www.bel-air-models.com/models/civil-large/FokkerV44.jpg
 -- http://c8.alamy.com/comp/E18F6G/fokker-v44-E18F6G.jpg

Fokker V 45 - 1919 1 crew/5 pax* high-wing monoplane airliner
 - V 45 : 1 x 185 hp BMW IIIa, span 16.10 m (incl. ailerons)
 -- * 4 x pax in central cabin, 1 x pax seated beside pilot
 -- 'Fresh sheet' design by R. Platz, prod'd as Fokker F.II
 -- V 45 was re-desig. V.I in Fokker's postwar desig. system
 -- http://aviadejavu.ru/Images6/FT/FT1920/08/930-1.jpg
 - 3v: http://aviadejavu.ru/Images6/FT/FT1920/08/929-2.jpg

___________________________________

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #4 on: April 11, 2018, 03:50:40 pm »
Fokker B-serie Aircraft Designations

As noted, Anthony Fokker retained German language and Idflieg-style role designation letters, modifying and adding on to the system as required. During WWI, three Fokker designs had 'B' letter role designaters applied under the German Idflieg designation system. [1] Under that system, 'B' identified early, unarmed observation biplanes. That concept became obsolete and did not persist to the end of the war.

After Fokker moved his operations to the Netherlands, an entirely new sequence of 'B' designations was begun. In this postwar B-serie, 'B' stood for 'Boot' as a short form for vliegboot or flying boat. Here, a distinction was being made between flying boats and floatplanes - the later being referred to, rather generically as 'watervliegtuig' or 'water aircraft'. [2]

Fokker also used 'Amphibievliegboot' to describe flying boats. In this case, 'amphibi-' refers to moving in both air and water - not necessarily to the air/water/land connections implied by 'amphibian' in English. On the other hand, the phrase "als amfibie" does imply an added wheeled landing gear - as in the unbuilt B.VI project of 1929.

The B-serie ran from the 1923 B.I for the Marine Luchtvaartdienst (MLD, or Dutch Naval Air Service) to that unbuilt 1929 B.IV project. No further 'B' designations were assigned but Fokker did produce other flying boat concepts. These received project or Ontwerpen designations.

In the Fokker designation system of 1920-1925, concepts were assigned working designations. In the vliegboten category, these were the F.B.I and F.B.II. As built, these flying boat designs were simply re-designated B.I and B.II, respectively. Circa 1934, Fokker rationalized project nomenclature with concepts assigned Ontwerpen numbers commencing with Ontwerp 101.

The first flying boat in the new project numbering system was Ontwerp 109 of 1934/35. Nine unbuilt flying boat Ontwerp numbers have been identified (largely by the work of researchers like Frits Gerdessen). However, there may have been more flying boat designs - not all Ontwerp numbers have been  uncovered.

There are persistant rumours of a flying boat derivative of the high-winged F.27 post-WW2 airliner. This F.27 flying boat 'concept' sprang from an overly-successful April Fool's gag.

___________________________________


[1] These were the B.I for Austria (aka Fokker M 10E); the B.II (aka Fokker M 17), and B.III (aka M16, and unarmed reconnaissance version of the Fokker D.I fighter).

[2] Watervliegtuig is a generic term. In Dutch, pontoon floats are referred to as drijvers.

___________________________________


Fokker B-serie Vliegboten - Flying Boats

Fokker B.I - 1923 4-seat naval amphibious flying boat, x 1
 - B.I: 1 x 450 hp Napier Lion XI pusher, span 18.12 m
 - B I: Sesquiplane (Warren truss) maritime recce a/c
 -- Used experimentally by MLD in NEI as FB-1, aka FA.I
 -- Fokker B.I designed by Ing. Walter Rethel, ex-Kondor

Fokker B.II - 1923 'Cruiser' Kruiservliegboot sesquiplane flying boat
 - B.II: 1 x 360 hp R-R Eagle XII V-12 tractor,* span 14.60 m (upper)
 - B.II: Sesquiplane wings, duralumin hull construction, aka F.B.II,
 -- Sole B II first flew 15 Dec 1923, built for MLD but was rejected
 -- * Projected version to powered by a 450 hp Napier Lion XI pusher
 -- * Some sources say B.II had 13.50 m span and Eagle VIII powerplant
 -- http://www.histarmar.com.ar/AVIACION/EloyMartin/Los-Fokker-argentinos-1919-1942-Eloy-%20Martin.pdf
 -- 3v: https://farm9.static.flickr.com/8430/7585248458_1c51882930_b.jpg
 -- Sole B.II exported in 1924 for private use in Argentina but not used
 -- http://www.histarmar.com.ar/AVIACION/EloyMartin/Los-Fokker-argentinos-1919-1942-Eloy-%20Martin.pdf

Fokker B.III - 1926 3-seat naval reconnaissance flying boat, x 1
 - B.III: Devel. of B.I, dural hull, wooden sesquiplane wings
 - B.III : 1 x 450 hp Napier Lion W-12 pusher, span 18.00 m
 -- https://www.flightglobal.com/pdfarchive/view/1927/1927%20-%200079.html
 -- Dornier Wal chosen over B.III for NEI long-range recce
 - B.IIIc: US civil conv., 6 pax cabin, NC149 (later NC3996)
 -- Fokker B.IIIc aka B-3 or B.IIIC (but not Atlantic Model 9)*
 -- * Conf. with B.IIIc repl., Fokker B.IV aka F-11 or Model 9

Fokker B.IV - 1928 single-engined pusher civil flying boat, x 6
 - B.IV : Prototype, mod. B.III hull, mod. Super Universal wing
 - B.IV : 1928, 1 x 420 hp Pratt & Whitney Wasp, span 15.43 m
 - B.IV : 1929, 1 x 525 hp Wright Cyclone, longer 17.98 m span
 -- c/n 901, NC7887, orig. wheeled sponsons, later tip floats
 - B.IVa: Prod. vers., mod. fuselage, mod. Fokker F.14 wings
 - B.IVa: 1 x 525 hp Wright R-1750D Cyclone,* span 13.72 m
 -- * Some sources list 1 x 525 hp Pratt & Whitney Hornet
 -- F-11A : US Atlantic-Fokker designation for B.IVa
 -- Y1C-16: 1931 US Army Air Corps evaluation desig., x 1
 -- PJ-1 : General Aviation twin-pusher devel. for USCG
 -- FLB : (Flying Life Boat) 1932 USCG des. for PJ-1
 -- PJ-2 : General Aviation PJ-1 conv. to tractor config.
 -- https://www.flickr.com/photos/sdasmarchives/7585085828
 -- 3v: http://www.airwar.ru/image/idop/flyboat/fokb4/fokb4-1.gif
 -- https://web.archive.org/web/20130925122350im_/http://www.letletlet-warplanes.com/wp-content/uploads/2008/06/fokker-b4-drawing.jpg

Fokker B.IV - [Project] 3-engined, full biplane deriv. of above
 - Fokker B.IV: 2 x pull, 1 x push engines, equal-span biplane

Fokker B.IV-3m - [Project] 1928-1930, 3-engined flying boat
 - Fokker B.IV-3m: 2 x pull, 1 x push engines, sesquiplane wings

Fokker B.V - [Project] 1927 reduced-scale vers. B.IV flying boat
 - B.V (1): 1 x pusher radial engine, span 15.00 m, Tek. 10353

Fokker B.V - [Project] 1935 maritime recce flying boat variants
 - B.V : To MLD NEI multi-engined patrol flying boat competiton*
 -- * For MLD NEI Dornier Wal replacement (won by Dornier Do 24)
 -- aka Ontwerp 109 (qv, below) in at least three distinct vers.
 - B.V : 3-engined variant, 'Stummeln' (MLD request), Ont. 109
 - B.VA: 3-engined variant, wing-mounted tip floats, Ont. 109A?
 - B.V?: Twin-engined variant, poss. Ontwerp 109C (??)
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg164804.html#msg164804

Fokker B.VI - [Project] 1929 reduced-scale vers. B.IV amphibian
 - B.VI :  1 x pusher engine, span 15.00 m, Tek. 10651 & 10658
 - B.VI : Shorter hull than 1927 B.V, presum. sponsons (as B.IV)

_____________________________________

Fokker Ontwerpen Numbers - 1934-1939 Vliegbootontwerpen Projects

Ontwerp 109 - [Project] 1934/35 multi-engine patrol flying boat
 - 109: MLD NEI Dornier Wal flying boat repl., various configs.
 - 109: Parasol, twin-tailed , dural hull, wooden wing const'n
 -- Outrigger floats or 'Stummeln' (as per comp'n winner Do 24)
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg173385.html#msg173385
 -- B.V : 3-engined variant fitted w/ MLD-requested 'Stummeln'
 -- B.VA: 3-engined variant with wing-mounted outrigger floats
 -- B.V / B.VA presum. correspond to Ontwerp 109A/Ontwerp 109B
 - Ontwerp 109C: Twin-engined variant
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg164804.html#msg164804

Ontwerp 125 - [Project] 1935 twin-engined recce flying boat
 - 125: 2 x 815 hp Gnome-Rhône 14 Krsd 14-cyl, span 24.00 m
 -- Ontwerp 125 was alt. for Ontwerp 109, Tek. 35119 lost

Ontwerp 146 - [Project] 1937 3-engined all-metal flying boat
 - 146: Resembled Dornier Do 24 (which won MLD competition)

Ontwerp 172 - [Project] 1939 twin-engined commercial flying boat
 - 172: Designed for Ned. Nieuw Guinea Petroleum Maatschappij*
 -- Ontwerp 172 similar to Grumman Goose, but slightly larger
 -- * Oil exploration, Netherlands New Guinea Petroleum Co. **
 -- * BV Nederlandsche Nieuw Guinea Petroleum Maatschappij**
 -- ** Ontwerp 183 was a floatplane alternative for the NNGPM

Ontwerp 174 - [Project] 1939 twin-engined commercial flying boat
 - 174: Alt. design for Ned. Nieuw Guinea Petroleum Maatschappij
 -- Ontwerp 174 similar to Ontwerp 172 but slightly bigger still

Ontwerp 188 - [Project] 1939 twin-engined commercial flying boat
 - 188: Designed for NEI use (for KNILM* airline and Government)
 -- * Koninklijke Nederlandsch-Indische Luchtvaart Maatschappij
 -- Ontwerp 188 related to the Ontwerp 172 design for the NNGPM

Ontwerp 189 - [Project] 1939 twin-engined commercial flying boat
 - 189 : Designed for NEI use (for KNILM airline and Government)
 -- Ontwerp 189 related to the Ontwerp 174 design for the NNGPM
 -- 3v : https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg86734.html#msg86734
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164807.html#msg164807

Ontwerp 190 - [Project] 1939 twin-engined commercial flying boat
 - 190 : Designed for NEI use (for KNILM airline and Government)
 -- * Koninklijke Nederlandsch-Indische Luchtvaart Maatschappij
 -- Ontwerp 188 related to the Ontwerp 172 design for the NNGPM

Ontwerp 196 - [Project] 1939 twin-engined commercial flying boat
 - 196 : Designed specifically for KNILM airline use in the NEI
 -- Ontwerp 196 was larger than the Ontwerp 190, quotes for x 6

_____________________________________________

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #5 on: April 11, 2018, 04:06:21 pm »
Fokker 'C' Serie Reconnaisance-Bomber Designations - 1919-1939

As Jos Heyman has explained elsewhere, Anthony Fokker retained German language and Idflieg-style role designation letters (while adding others when required). Only one wartime Fokker design received an Idflieg 'C' for armed reconnaissance biplane designation - the C.I of 1918. The C.I was approved for production to equip the German Luftstreitkräfte but was just too late to participate in WWI.

As is well known, Anthony Fokker smuggled large number of finish and semi-finished airframes out of Germany when he relocated to the Netherlands in 1919. Amongst those smuggled rail car-loads of aircraft and equipment were Fokker C.I airframes and components. Some were finished as C.Is for the Dutch LVA and for export. Other components would be completed as Fokker C.II air taxis or C.III trainers.

From there, the C-Serie sequence continued up to the unbuilt twin-engined C.16 of 1939-40. That model type is deceptively small. Some Fokker C-Serie designs were built in large numbers and an array of variants - an example being the C.V series biplanes. The evolution of the C-serie designations follow the usual Fokker style variations - shifting from Roman to Arabic numbers in the mid-to-late 1930s with the knock-on effects to sub-type suffixes (as well as the presentation of 'W' for Watervliegtuig suffixes).

As a example, in the older style of Fokker designation presentation, the eleventh Fokker recce-bomber on floats would appear as C.XI-W. In the revised presentation style, this would be shown as C.11W.

Unnamed Fokker Recce Types, Other 'C'-related Designations, and Ontwerpen

In the early days at NV Ned.Vliegtuigenfabriek Fokker, basic design concepts would simply be assigned a letter (and sometimes a descriptive name). Examples from the 1920-1925 period are:

Ontwerp A (Project A): "Fokker waarnemer watervliegtuig" ("Fokker observer seaplane")
 - Ontwerp A: Sim. to C.IV, fitted with central main float and two outrigger floats

Ontwerp B (Project B ) : Single-engined low-wing bomber
 - Ontwerp B: Resembling a scaled-down T.III torpedo bomber

As Ontwerp A shows, basic design concepts could also be given simple description names. (If those concepts were further developed, they would be assigned 'proper' designations.) In some cases, only descriptive names were applied (or, perhaps, only those descriptive names were recorded). An example of these Ontwerpen met een naam is the "Gesloten verkenner" of 1936 - a biplane 'Closed explorer' for which no drawing is known.

There were also a small number of 'C'-related compound designations. These were the CC-Serie Luchtkruiser multi-role aircraft, and the DC-serie reconnaissance fighters (also shown in the 'D' for fighter listings), as well as a few one-off 'C'-related compound designations. All are listed directly after the C-serie listings below.

Beneath the C-serie listing will be posted Fokker Ontwerpen numbers for reconnaissance/light bomber aircraft designs as well as Ontwerpen related to Luchtkruisers and 'DC' concepts.

____________________________________________

Fokker C-serie Reconnaissance Aircraft (Verkenningsvliegtuigen)

Fokker C.I - 1918 2-seat, single-engined biplane recce a/c
 - C I : Intended for German Luftstreitkräfte but too late
 -- Prototype for German C I was the V 38 biplane of 1918
 -- http://www.airwar.ru/image/idop/other1/fokc1/fokc1-3.jpg
 - C I-W: 1919 Schwerin-built exper. twin float vers., x 1
 -- http://www.airwar.ru/image/idop/other1/fokc1/fokc1-10.jpg
 - C.I : 1 x 185 hp BMW IIIa inline, upper wing span 10.50 m
 -- C.I was effectively an enlarged, 2-seat D VII derivative
 -- ~250 x C.I: Soviets (42), Dutch (62) - used by LVA & MLD
 -- https://nimh-beeldbank.defensie.nl/memorix/6dce5018-d59c-5024-3d2c-b9b5a8ffc29d
 -- 3v: https://www.ipms.nl/images/foto-nedmil/kisten/fokker-c1/fokker-c1-profil.jpg
 -- Fokker smuggled complete C.Is and parts out of Germany
 - C.I: PH-APL, exper. Adriaan Dekker counter-rotating rotary prop
 -- https://oldmachinepress.files.wordpress.com/2017/03/fokker-dekker-ci-front.jpg
 - C.Ia: 1929 modernized vers., 1 x 200 hp AS Lynx radial
 -- 21 x LVA conv'ns to C.Ia standards with new fuselages
 -- http://www.aviationphotocompany.com/img/s2/v52/p646491498-3.jpg

Fokker C.II - 1919 single-engined biplane air taxi C.I, x 12
 - C.II: As built, 1 x 185 hp BMW IIIa 6-cyl., span 10.61 m
 -- Pilot in open cockpit, 2 x pax behind in enclosed cabin
 -- C.II to KLM, export to N & S America, used as photo a/c
 - C.II: Update conv'ns to 1 x 230 hp Siddeley Puma 6-cyl.
 -- http://www.aviastar.org/pictures/holland/fokker_c-2.jpg

Fokker C.III - 1922 2-seat dual-control trainer biplane, x ??
 - C.III: 1 x 220 hp Hispano-Suiza 8B V-8, span 10.50 m
 -- C.I deriv. for Spain, prototype temp. civil reg. M-MOAB
 - C.III: 12 for 1st Higher School of Military Pilots, Moscow
 -- http://flyingmachines.ru/Images7/Putnam/Soviet/126-2.jpg
 -- https://ww2aircraft.net/forum/attachments/fokker-c-iii-003-jpg.168083/
 -- http://imgproc.airliners.net/photos/airliners/1/5/8/0648851.jpg?v=v40

Fokker C.IV - 1922 2-seat general purpose* biplane, x 159
 -- * Described as  "Zware verkenner" ("Heavy recce a/c")
 - C.IV : 1 x 450 hp Napier Lion II W-12, span 12.90 m
 - C.IV (civil mod): 1920s, conv. to 3-4-pax light cabin a/c
 -- WA-based C.IV 'Bob and Eddie' (after Bob Wark & Eddie Brown)
 - C.IV (civil mod): 1930, long-range conv., Tacoma-Tokyo flight
 -- Several Tacoma-Toyko attempts in the 'Pacific Era', '439'
 -- NB: Not related to US CO.4s, oss c/n 4127, R-R Eagle VIII
 -- http://www.aahs-online.org/journals/journal_template.php?vol_no=v61n3
 - C.IVa: 1 x Rolls-Royce Eagle VIII, span 12.50, LA/KNIL x 10
 - C.IVb: As long-span C.IV, R-R Eagle or Liberty L-12 engine
 - C.IVc: Long-span, 1 x 450 hp Napier Lion W-12, span 14.27 m
 -- C.IVc vers. deliv. to LVA, span sometimes given as 14.28 m
 -- https://www.modelbrouwers.nl/albums/coppermine/albums/userpics/14089/C.IVc_drawbro.jpg
 - C.IV-W: Twin-float vers., Napier Lion II W-12, span 14.27 m
 -- 2 x C.IV-W (4109, 4127) exp. to Argentina for private use
 -- http://www.airwar.ru/image/idop/spyww2/fokc4/fokc4-5.jpg
 - C.IVh: 1924 long-range (Amsterdam to Tokyo flight) vers.**
 -- ** Argentine pilot Mayor Zanni was attempting round-world
 - XCO-4: US Army Air Corps evaluation a/c, Liberty L-12, x 3
 - AO-1 : USAAC XCO-4 modified for artillery spotting, x 1
 - CO-4A: Extended fuselage (0.24 m) vers. for USAAC, x 5***
 -- *** Some sources say x 4, 420 hp Liberty L-12A engine
 - CO-4 Mailplane: 1924 Atlantic redesign for USPO eval. x 1
 -- Model 3: Atlantic desig. (XCO-4, AO-1, CO-4A) span 12 m
 -- http://www.americancombatplanes.com/images/6-6xn.jpg
 -- https://fokker-aircraft.com/media/com_mtree/images/listings/m/110.jpg

Fokker C.V - 1924 2-seat single-engine multi-use biplane, 850+
 - C.V: Multiple engine types, varying wing types and spans
 -- C.V used as recce, light bomber, scout, & 2-seat fighter
 - C.Va prototype: Improved, more-powerful Fokker C.IV deriv.
 - C.Vb : Production vers. of C.Va, for Danish Army AF, x 18
 -- Danish C.Vb: 400 hp Lorraine Dietrich 12b, span 13.30 m
 -- Denmark supplied with 5 Fokker-built, 13 local-built IRs
 - C.Vc: 1 x 400 hp Lorraine Dietrich 12b, span 14.63 m
 -- C.Vc : 2nd production version, MLD (6), Bolivia (5)
 -- C.Vc 'Z-1' shows untapered wing, 'Z-7' & 'Z-10' tapered
 - C.V-W: 1 x 450 hp Hispano-Suiza 12Lb V-12, span 12.50
 -- C.V-W: Twin-float seaplane deriv. of C.Vc, MLD 'Z-6'
 - C.Vd : Various engines,* adopted 12.50 m tapered wings
 -- * AS Jaguar, Wright Hornet & Wasp, Bristol Pegasus
 -- * Napier Lion W-12 or Rolls-Royce Kestrel V-12
 -- LVA: 350 hp, 450 hp, & 500 hp HS or 380 hp AS
 -- All LVA C.Vd re-eng'd 1936 630 hp Kestrel V IIb/XI
 -- http://beeldbank.grebbeberg.nl/images/greb/foto/normal/vd/vdv_023.jpg
 -- Danish Navy (12? as IIR), Finland (2), Hungary (59)
 -- (Hung. by KRG & Manfred Weiss leading to MW 16B/21)
 -- LVA (69), LA/KNIL (20), Norway (28), Sweden (14 J3)*
 -- Switzerland (11 poss. made locally but likely Fokker)
 -- * 1931 desig. change: J 3B to S 6, J 3 & J 3A to S 6A
 - C.Ve : Redesigned 15.30 m wings, various engine types **
 -- ** 400 hp Napier Lion (KNIL), 450 hp Jupiter VI (SE)
 -- ** 575 hp AS Panther II (NO), 600 hp Mercury VI (SE)
 -- Danish Navy (12? as IIIR), Finland (17), MLD (14),
 -- LA/KNIL (16?), Norway (20), Sweden (48 as S6),***
 -- Switzerland (53 made locally by K+W and Doflug)
 -- *** SE C.Ve: 38 x 450 hp Jupiter VI (1 x CVM-built)
 -- *** SE C.Ve: 10 x 600 hp Nohab My VI (Mercury VI)
 -- *** SE C.Ve: ?? x CVM C.V-E (Hydro) aka S 6H
 -- Meridionali Ro.1: Italian license-prod'n. x 349
 -- Ro.1 : 1 x 420 hp Alfa Romeo-built Jupiter IV
 -- Ro.1-bis: 1 x 550 hp Piaggio-built Jupiter VIII
 
Fokker C.VI - 1925 2-seat single-engine recce biplane, x 26
 - C.VI: Re-engined conversions in in-service LVA C.Vds
 -- C.VI: 1 x 350 hp Hispano-Suiza 12-J V-12,* span 12.50 m
 -- * aka Type 52 or 52-12i, optional 1 x 450 hp AS Jaguar
 - C.VI: 1 x "380 pk" AS Jaguar, trialled in C.VI no. 620
 -- https://fokker-aircraft.com/media/com_mtree/images/listings/m/251.jpg
 - C.VI: 1 x BMW 6-cyl inline, engine testbed (??)
 -- http://aviadejavu.ru/Images6/FT/FT1925/07/450-1.jpg
 - C.VI: 1935, survivors re-engined with R-R Kestrels**
 -- ** http://www.vriendennmm.nl/media/filer_public/e6/e9/e6e9b170-ef9a-46f4-baf3-994c39952709/spinner_49.pdf

Fokker C.VII - [Project] 1925 (?) 2-seat monoplane* seaplane
 - C.VII (1): 1 x liquid-cooled engine, heavily-braced floats
 -- * Low swept-back leading edge, mated to fuselage of C.V-D

Fokker C.VII - [Project] 1926 3-seat high-winged recce a/c
 - C.VII (2): No other details (??)

Fokker C.VII-W - 1928 2-seat biplane trainer/recce seaplane
 - C.VII-W: 1 x 225 hp AS Lynx radial,* span 12.90 m, x 30
 -- * Opt'l 280 hp Lorraine Mizar/340 hp AS Double Mongoose
 -- C.VII-W was effectively a refined, radial-engined C.V-W
 -- 18 for MLD, 12 for NEI Naval AF, 1st flew 27 July 1928
 -- https://images.memorix.nl/nda/thumb/640x480/d1dfc19a-6b76-2fef-616d-3205d383c140.jpg
 -- https://images.memorix.nl/nda/thumb/640x480/5a471867-b0b5-16ca-8f71-3331f74c8c31.jpg
 -- C.VII-L: [Project] 1933-34 land-based C.VII-W derivative

Fokker C.VIII - 1928 3-seat single-engined recce biplane, x 10
 - C.VIII : 1 x 670 hp Hispano-Suiza 12Lb, span 14.03 m, x 1
 -- C.VIII intended for LVA service, not accepted for prod'n
 -- http://1000aircraftphotos.com/Contributions/Visschedijk/12716L.jpg
 -- http://aviadejavu.ru/Images6/FT/FT1928/07/663-4.jpg
 - C-VIII-W : [Project] Prelim. Jan 1927, folding wings/fuselage
 - C-VIII-W : [Project] Prelim. Feb 1927, 1 x ~200 hp powerplant
 - C-VIII-W : [Project] Prelim. May 1927, folding outer wings
 - C.VIIIA-W: [Project] (??) Tekening 11150
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg325093.html#msg325093
 - C.VIII-W: 1929 3-seat twin-float seaplane for MLD, x 9
 - C.VIII-W: 1 x 450 hp Lorraine 12E Courlis W-12, span 14.03 m
 -- https://fokker-aircraft.com/media/com_mtree/images/listings/m/267.jpg

Fokker C.IX - 1929 2-seat single-engined recce biplane, x 6
 - C.IX: 1 x ~600 hp Hispano-Suiza 12N or Lb, span 15.30 m
 -- C.IX was impr. Fokker C.Ve deriv. for LVA and Switzerland
 -- 1931: LVA x 5 C.IX (registratienummers 661 to 665)
 -- 193?: Switzerland x 1 (CH-176, later Fliegertruppe 301)
 -- http://1000aircraftphotos.com/Contributions/Visschedijk/6710L.jpg

Fokker C.X - 1934 2-seat, single-engined recce biplane, x 71
 - C.X: Intended as a C.V replacement, various engine types
 - C.X: Prototype 'X-1' orig. flown with R-R Kestrel V
 - C.X: 1936 X-1 re-eng w/ 860-925 HS 12Ycrs, 3-blade prop
 -- http://beeldbank.grebbeberg.nl/images/greb/foto/normal/fc/fc10_002.jpg
 - C.X (LVA & LA/KNIL): 1 x 608 hp R-R Kestrel V, span 12.00 m
 -- 10 x C.X for LA/KNIL in 1935; 20 x C.X for LVA in 1937
 -- NB: The first 5 x LVA C.X were not fitted with canopies
 -- http://beeldbank.grebbeberg.nl/images/greb/foto/normal/14/14042006_fokker_cx_001.jpg
 -- http://www.airnieuws.nl/luchtvaartartikelen/wingsandwheels14/FOKKER%20C%20X.jpg
 -- C.X developed for export with various engine options
 - C.X (Spain): [Project] 1 x 925 hp Hispano-Suiza 12Ycrs
 - C.X (Finland): 1 x 835 hp Bristol Pegasus XXI, x 4*
 -- * Series I: 1936 Fokker-built C.Xs supplied to Finland
 -- Series II : 13 x VL-built C.Xs, deliv. Jan-June 1938
 -- Series III: 17 x VL-built C.Xs, deliv. June-Dec 1938
 -- Series IV : 5 x VL-built C.Xs, delivered in late 1942

Fokker C.XI-W - 1935 2-seat single-engine catapult floatplane
 - C.XI-W: 1 x 775 hp Wright SR-1820F-52 Cyclone, span 13.00 m
 -- MLD twin-float shipboard catapult recce biplane, x 14*
 -- * Incl. 3 x C.XI-W assigned to Nederlands-Indië Eskader
 -- Began as Ontwerp 120A, C.XI-W first flight 20 July 1935
 -- C.XI-W aka C.11W, also with 775 hp Bristol Pegasus III
 -- https://pacificeagles.net/wp-content/uploads/2016/02/Tromp_boordvliegtuig-e1455100118101-678x381.jpg
 -- https://fokker-aircraft.com/database/fokker-c-type/fokker-c-xiw/313-fokker-c-xiw-works-drawing.html#close

Fokker C.XII - [Project] 1935 2-seat biplane trainer/recce a/c
 - C.XII (1): 1 x ~300 hp engine, span 12.00 m, slender fuselage
 -- C.XII used same wings as C.X, intended for LVA and Bolivia

Fokker C.XII - [Project] 1936 2-seat biplane trainer/recce aircraft
 - C.XII (2): 1 x 550 hp P&W Wasp, span 12.00 m, meant for Argentina
 -- C.XII (2) was essential same as a Finnish C.X except powerplant

Fokker C.13W - [Project] 1936 3-seat twin-float C.VIII-W successor
 - C.13W: Recce/torpedo-bomber seaplane to repl. the MLD C.VIII-W
 -- Ontwerp 131 was desig. C.XIII-W (aka C.13W) but never ordered*
 -- * Eclipsed in MLD plans by twin-engined Ontwerp 134 (aka T.8W)
 -- http://mmr.adlibhosting.com/madigopacx/wwwopac.ashx?command=getcontent&server=Maritime&value=imh%2FAfbeeldingen%5C067819%2Ejpg&height=800&width=800

Fokker C.14W - 1939 2-seat single-engined biplane floatplane, x 24
 - C.14W: 1 x 450 hp Wright R-975E-3 Whirlwind 9-cyl, span 12.05 m
 - C.14W: Twin-float recce-trainer for MLD, first flew 24 Jan 1939
 -- C.14W: aka C.XIV-W, F-1 - F-24, 6 for Nederlands-Indië Eskader
 -- http://www.dutch-aviation.nl/pictures/Fokker/Military/Fokker%20C14W%20prototype.jpg
 -- 3v: http://aviadejavu.ru/Images6/MK/14-Hidro/Nide_Fokker_CXIVW_p.jpg

Fokker C.15W - [Project] 1939 3-seat twin-float C.11W successor
 - C.15W: All-metal catapult seaplane for MLD, wood mockup built
 -- C.15W prototype ordered 1940, 5 to be ordered if successful
 -- Single-engined Fokker C.15W project was begun as Ontwerp 194
 -- Max weight 3,500 kg (vs.  C.XIw's 2,550 kg; C.VIIw's 1,700 kg
 -- Intended as catapult a/c for the 'Kruiser 1938'class cruisers
 -- Listed as Fokker C XV-W on De Ree Archiefsystemen BV website

Fokker C.16 - [Project] 1939 LVA re-designation of G.2 project
 - Fokker G.2: 1937 twin-engined jachtkruiser, Fokker G.1 deriv.
 -- Ontwerp 154: 3-seat, single-fuselaged, twin-tailed aircraft
 -- Intended as multi-role a/c, Ontwerp 154 received 3 desig.*
 -- * 1st G.2 fighter, then C.16 recce-bomber, finally as CG.2

____________________________________________

Fokker CC-serie Luchtkruisers - Multi-seat, Multi-Role Aircraft

Like the Air Staffs of a number of European countries, LVA planners became enamoured of the multi-role combat aircraft concept in the early 1930s. In the Netherlands, such concepts were labelled Luchtkruisers or Air Cruisers.

Luchtkruisers were to be relatively large and heavily armed aircraft. By definition, a luchtkruiser would be multi-engined, multi-seat, and multi-role. The luchtkruiser concept relied heavily upon the combined defensive firepower of multiple gunners. That was to allow the luchtkruiser to act as a very heavy fighter, escort, medium bomber, or perform reconnaissance in force.

Similar notions in France resulted in a Multiplace de Combat requirement. That produced designs like the Amiot 140M which eventually evolved into the Amiot 143 medium bomber. A similar transformation occurred in the Netherlands. Several attempts to produce viable luchtkruiser designs failed ... but they did result in the relatively successful Fokker T.V medium bomber.

Other luchtkruiser concepts were derived from existing designs. One was a seemingly undesignated 1929 luchtkruiser which was to be derived from the T.IV-W - a twin-engined torpedo-bomber/patrol floatplane. Or, perhaps more accurately, the luchtkruiser derivative would be related to the unbuilt T.IV-L. That idea would be revived in 1932 for another unbuilt T.IV-derived luchtkruiser concept - the CC.II.

None of the luchtkruiser proposals put forward made it to fruition. Those few which received CC-serie designations are listed below. Other luchtkruiser concepts will be included in the Fokker Ontwerpen listings in a later post.

CC-serie Luchtkruisers - Multi-Role Aircraft Designations

Fokker CC.I - [Project] 1931 twin-engined luchtkruiser for the LVA
 - CC.I: Twin-engined luchtkruiser deriv. of single-engined F.VII

Fokker CC.II - [Project] 1932 twin-engined luchtkruiser for the LVA
 - CC.I: Luchtkruiser deriv. of unbuilt, medium bomber-sized T.IV-L

Fokker CC.III - [Project] 1933 twin-engined luchtkruiser for the LVA
 - CC.III: No details (??), poss. relates to devel. of T.V concept

____________________________________________

Fokker DC-serie Two-Seat Reconnaissance-Fighters

The short-lived Fokker DC-serie represents a unique combination of inherited Idflieg designations - 'D' for fighter and 'C' for reconnaissance aircraft. Only one design was produced - the 1923 DC.I - but the DC-serie persisted until 1934 with the unbuilt DC.II project.

There is another 2-seat fighter amongst undesignated projects. This 1933 2-seater is described as being larger than the D.XVII but smaller than the unbuilt DC.II. However, there is no mention of a secondary reconnaissance role. And, since the DC.II dates to a year after this undesignated "tweezits jager", it is highly unlikely that the latter would have fallen in to Fokker's DC-serie.

This listing will be duplicated in the Fokker C-serie designation listings.

Fokker DC.I - 1923 2-seat, 2-seat recce-fighter biplane
 - DC.I : 1 x 450 hp Napier Lion W-12, span 12.50, x 10
 -- DC.I was essentially C.IV with short-span C.IVA wings
 -- DC.I was delivered to the LA/KNIL in 1925
 - Loring DC.I: Planned Spanish prod. by Talleres Loring*
 -- * Spanish AF pref. C.IV instead, 20 built at Madrid

Fokker DC.II - [Project] 1934 2-seat recce-fighter biplane
 - DC.II: 1 x (??) hp ??, span (??) m, designed for LVA

____________________________________________

Other Fokker Reconnaissance Aircraft Designation Systems

Beyond the short-lived CC-serie and DC-serie designations, there are a handful of apparently one-off Fokker 'C'-related designations. Two of these are actual, new-style designations. Another is quite obviously just a concept description. In alphabetical rather than chronological order, these compound designations are:

Fokker CG.2 - [Project] 1940, Definitive designation for Ontwerp 154
 - CG.2: Recce-fighter, Ontwerp 154 1st desig. G.2, then C.16 (above)

Fokker CL-2m - [Project] 1934 Lockheed Model 12 Electra military derivative
 - CL-2m: aka Ontwerp 102, Fokker held export rights for Model 12 Electra
 -- The CL-2m 'designation' obviously stood for Recce/Lockheed-2motor

Fokker CS.III - [Project] 192? trainer w/ features of Fokker C.I and S.III
 - CS.III: Designation suggests S.III trainer airframe adapted to recce role

____________________________________________

Ontwerpen Numbers for Fokker Recce Aircraft, Luchtkruisers, and 2-Seat Recce-Fighters

Ontwerp 102 - [Project] July 1934 LVB* twin-engined combat a/c req't
 - 102: 20 Aug 1934, dorsal turret on Lockheed 12 Electra, mock-up
 -- CL-2m military variant as an attack/bomber/strategic recce a/c
 -- * Luchtvaartbedrijf (Tech. Branch) was Technische Dienst van de LVA

Ontwerp 111 - [Project] 1934 twin-engined luchtkruiser*
 - 111: Liquid-cooled engines, retr. u/c (incl. tailwheel)
 -- Low-wing, twin-tail, nose/dorsal/ventral gun positions
 - 111: Designed to LVA specification, offered as T.5**
 -- * Some sources say Ontwerp 111 was (also?) a bomber
 -- ** Promoted as Fokker T.V at the 1934 Paris Salon

Ontwerp 120 - [Project] 1934 single-engined multi-purpose biplane
 - 120 : 2-seat general purpose biplane with land u/c or twin floats
 - 120A: Twin-float catapult seaplane for MLD, ordered as the C.11W

Ontwerp 126 - [Project] 1935 3-seat monoplane* recce-bomber/scout
 - 126: 1 x 860 hp HS-12Ycrs, span 12.20 m, cost ~ f 100,000
 -- * Low-winged, spatted u/c, dorsal and ventral gun positions
 -- Made to IML spec, mentioned in 29 March 1935 IML letter to MvD
 -- 3v: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg42192.html#msg42192
 -- 3v: https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg93550.html#msg93550

Ontwerp 131 - [Project] 1936 3-seat recce/torpedo-bomber seaplane
 - 131: Twin-float seaplane to repl. the MLD's Fokker C.VIII-W
 -- Ontwerp 131 desig. C.XIII-W/C.13W by MLD, but not ordered

Ontwerp 134 - Twin-engined floatplane reconnaissance/torpedo bomber
 - 134: Built as the T.8W, eclipsed Ontwerp 131/C.13W in MLD plans

Ontwerp 135 - [Project] 1937 All-metal light bomber for  ML/KNIL
 - 135: 'Super G.1' bomber, 2 x Bristol Mercury VIII radials*
 -- * Some sources say Mercury XX; poss. related to Ontwerp 130

Ontwerp 153 - [Project] 1937 2-engine trans'l trainer/light bomber*
 - 153: Mixed constr. alt. for Ontwerp 149, intended for ML/KNIL
 -- * NB: Some sources list Ontwerp 153 as late luchtkruiser type

Ontwerp 161 - [Project] 1938 2-seat biplane recce-bomber, span 12.00 m
 - 161: Effectively C.X/C.10 with German DB600A V-12, enclosed cockpit
 -- To Inspectie der Militaire Luchtvaart (IML) spec., but not offered
 -- Ontwerp 161 related to 2 x C.X-winged C.XII projects of 1935-1936

Ontwerp 163 - [Project] 1938 G.1-based jachtkruiser/strategic recce a/c
 - 163: All-metal, G.1-based observation derivative, 2 x DB 600 V-12s*
 - ** Some sources claim fuel-injected Daimler-Benz DB 601 powerplants
 -- To Inspectie der Militaire Luchtvaart (IML) spec., but not offered

Ontwerp 169 - [Project] 1939 single-engined torpedo floatplane
 - 169 : In competition with altern., twin-engined Ontwerp 168
 -- MLD to choose either the Ontwerp 168 or Ontwerp 169, x 22

Ontwerp 179 - [Project] 1939 3-seat recce/army co-op G.1 deriv.
 - 179: G.1 deriv, for the ML, Belgium, and Sweden, 3 variants
 -- Observer's nose position, or under-fuselage glazed position
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg146603.html#msg146603

Ontwerp 194 - [Project] 1939 single-engine 3-seat floatplane
 - 194: Prototype ordered for MLD as C.15W, not completed

Ontwerp 197 - [Project] 1939 single-engined 2-seat multi-use a/c
 - 197: 1 x 450 hp Wright Whirlwind J-6 radial, span 11.00 m
 -- Based on D.21 parts, usable for training, light recce, etc.
 -- Sept 1939 Ontwerp 197 intended as Koolhoven FK-56 competitor

After WW2. Fokker created no dedicated light reconnaissance-bomber designs. At a stretch, a light ground attack adaptation of a jet trainer could be placed in the light bomber category. The relevant Ontwerp number is:

Ontwerp 265 - [Project] Jet trainer/light ground attack a/c
 - 265: Based on Fokker S.14 Machtrainer, 1 x R-R Nene I jet

« Last Edit: April 13, 2018, 01:35:10 pm by Apophenia »

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #6 on: April 11, 2018, 04:19:39 pm »
Fokker 'D' Series Fighter Designations - 1916-1939

During World War One, Fokker biplane fighters were given designations by the German Luftstreitkräfte's Idflieg (Inspektion der Fliegertruppen). Under the Idfleig system, fighters designations were initially based on their number of wings - 'D' for biplanes, 'Dr' for triplanes, and 'E' for monoplanes. Late in the war, all single-seat fighters were assigned 'D' designations. These role-type prefix letters were followed by Roman numeral designator for individual design types.

When Anthony Fokker moved his aircraft operations to the Netherlands in 1919, he continued to use 'D' series designations for most fighter designs. Initially, all postwar Fokker fighter designs received 'D' series designation. Since this designation system was a numerical extension of the WWI Idfleig system, I have begun the Fokker 'D' list with those Idfleig designations followed by the post-WWI fighter types.

One exception among Fokker fighter designations was the parasol F.VI of 1922. Described as an evolution of the WWI D.VIII, twelve Wright-Hispano powered F.VI were bought by the US Army Air Service for use as PW-5 fighter-trainers. The F.VI/PW-5 seems to be a shorter-span development of the V 41/D.X. Perhaps the 'F' series designation was adopted to avoid reminding the American public of Fokker's wartime German fighters?

Evolved from design work undertaken in Germany during the closing stages of World War I, the F VI single-seat parasol fighter monoplane powered by a 300hp Wright (Hispano-Suiza) H-2 water-cooled engine was of mixed construction, with a one-piece plywood-covered wooden wing and a welded steel-tube fuselage. Two examples were ordered for evaluation by the US Army Air Service and were delivered in 1921, being assigned the designation PW-5. [2] Although the first of these crashed on 13 March 1922 as a result of a wing failure, a further 10 PW-5s were supplied to the USAAS that year. Armament comprised either two 7.62mm guns or one 12.7mm and one 7.62mm gun, and provision was made for small bombs to be carried on a rack beneath the fuselage

A small number of Fokker two-seat reconnaissance-fighter designs were placed in distinct DC-serie designations ... although the 'DC' designation prefix style did not last long. The DC-serie will be listed immediately after the D-serie fighter listings.

During the 1930s, many European air forces became enamoured with relatively large, multi-seat, multi-purpose aircraft. In the Netherlands, this class of aircraft were labelled Luchtkruisers (or Air Cruisers). At a stretch, such aircraft could be described as 'fighters'. However, Fokker designated Luchtkruiser designs in its CC-serie. As such, Luchtkruisers have been grouped under a separate C-serie design posting.

More obviously fighter types were the rather smaller designs described as jachtkruisers (or Fighting Cruisers). Fokker jachtkruiser designs were assigned designations in the G-serie. Fokker G-serie jachtkruisers will be listed after the D-serie fighters.

A list of known Fokker fighter Ontwerp[/u]en numbers will follow the 'D', 'DC' and 'G' type listings. [1] A few non-fighter Ontwerp[/u]en are included when directly derived from fighter designs.

_______________________________


[1] Only one fighter concept appears in the known list of 1920-1925 Ontwerp[/u]en designations - this is the V.3 of 1920, a parasol fighter. The V.3 fighter concept seems to have been quickly abandoned (since the designation was reapplied to a commercial cabin monoplane later in the same year).

[2] PW-5 is a purely US military designation standing for 'Pursuit, Water-cooled engine, 5th type'.

_______________________________

Fokker German 'D' series Fighter Designations - 1916-1918

Fokker D I - 1916 single-seat, single-engine biplane, x ~130
 - D I : 1 x 120 hp Mercedes D.II 6-cyl inline, span 9.05m
 -- Fokker M 18 devel., 1 x 7.92 mm mg, unarmed vers. was B II

Fokker D II - 1916 single-seat, single-engine biplane, x 181
 - D II: 1 x 100 hp Oberursel U I air-cooled rotary, span 9.05 m
 -- Devel. of experimental Fokker M 17, 1-or-2 x 7.92 mm mgs

Fokker D III - 1917 single-seat, single-engine biplane, x 291
 - D III: 1 x 145 hp Oberursel U III 2-row rotary, span 9.05 m*
 -- aka M 19, essentially wings of D I mated to D II fuselage

Fokker D IV - 1916 single-seat, single-engine biplane, x ~40
 - D IV: 1 x 160 hp Mercedes D.III 6-cyl. inline, span 9.70 m
 -- aka M 21, an improved, enlarged, more powerful Fokker D I

Fokker D V - 1916 single-seat, single-engine biplane, x 216
 - D V: 1 x 100 hp Oberursel U I rotary engine, span 8.75 m
 -- aka M 22, Reinhold Platz design, sweptback upper wings
 -- Designed as a fighter, employed as an advanced trainer

Fokker D VI - 1916 single-seat, single-engine biplane, x 1
 - D VI: D V development with different upper wing supports
 -- NB: This 1916 D VI was an internal Fokker designation*
 -- * Desig. system was short-lived, replaced by V series

Fokker D VI - 1917 single-seat, single-engine biplane, x 59
 - D VI: 1 x 110 hp Oberursel U II rotary engine, span 7.65 m
 -- Effectively Fokker Dr I fuselage with the wings of D VII

Fokker D VII - 1918 single-seat, single-engine biplane x ~3,300
 - D VII: 1 x 185 hp Mercedes D.III 6-cyl. inline, span 8.90 m
 -- Based on Dec 1917 Fokker V 11 prototype, Aldershof trials

Fokker D VIII - 1918 single-seat, single-engine parasol, x 290
 - D VIII: 1 x 110 hp Oberursel Ur.II rotary engine, span 8.35 m
 -- aka Fokker E V, D VIII based on 1918 Fokker V 26 prototype

_______________________________________

Fokker D serie Fighter Aircraft Designations - 1921-1939

Fokker D.IX - 1921 single-seat, single-engined biplane fighter
 - D.IX: 1 x 300 hp Wright Model H (HS 8) V-8, span 8.90 m
 -- D.IX: Modernized, Wright Hisso-powered D.VII development
 -- PW-6: US Army Air Service desig. for evaluation of D.IX

Fokker D.X - 1921 single-seat parasol monoplane fighter, x 12
 - D.X 1 x 300 hp Hispano-Suiza 8Fb V-8 engine, span 14.00 m
 -- Enlarged D.VIII devel., 11 x prod'n + V 41 prototype

Fokker D.XI - 1923 single-seat, single-engined biplane, x 177
 - D.XI: 1 x 300 hp Hispano-Suiza HS 8Fb V-8, span  11.67 m
 -- D.XI: Tapered wings, flew 05 May 1923, x 125 to Soviets*
 -- * Used for clandestinely training German military pilots
 -- D.XI exports: Romania (x 50), Spain (x 2), Argentina (x 1)
 -- Argentine D.XI arrived in 1923, conflicting engine info **
 -- ** 1 x Mercedes D.II or, more likely, 300 hp HS 8Fb ***
 -- *** 1926 docs show D.XI c/n 4636 w/ "Hispano 300 H.P."
 -- http://www.histarmar.com.ar/AVIACION/EloyMartin/Los-Fokker-argentinos-1919-1942-Eloy-%20Martin.pdf
 -- Some sources say 2 x D.XI eval by Swiss Fliegertruppe
 - PW-7: 1 x 440 hp Curtiss D-12, US Army Air Service, x 3
 -- 3v: http://airwar.ru/image/idop/fww1/fokd11/fokd11-1.gif

Fokker D.XII - 1923 single-seat, single-engined biplane, x 1
 - D.XII: Platz design direct specifically at USAAC requir't
 - D.XII: 1 x 440 hp Curtiss V-1150/D-12 V-12; span 11.00 m
 -- D.XII deriv., sources differ on flight 21 Aug. 1923/1924
 -- NB: D.XII had fabric-covered wings, not plywood-covered
 - 3v: http://airwar.ru/image/idop/fww1/fokd12/fokd12-1.gif

Fokker D.XIII - 1924 single-seat, single-engined biplane
 - D.XIII: 1 x 450 hp Napier Lion XI, span  11.00 m, x 50
 -- D.XIII was impr. D.XI for clandestine German AF training
 -- 3v: http://airwar.ru/image/idop/fww1/fokd13/fokd13-1.gif

Fokker D.XIV - 1925 single-seat, single-engined monoplane, x 1
 - D.XIV: Low-winged monoplane evolved from Fokker V.25 design
 - D.XIV: As flown, 1 x 300 hp Hispano-Suiza 8Fb, span  10.76 m
 - D.XIV: March 1925 rebuild,* 1 x 590 hp Hispano-Suiza 12Hb
 -- * Welded steel-tube fuselage was also slightly lengthened
 -- 3v: http://airwar.ru/image/idop/fww1/fokd14/fokd14-1.gif

Fokker D.XV - [Project] 1928 single-seat biplane fighter for LVA
 - D.XV : Lightweight vers., span 8.00 m, Tek. 10651 17 Aug 1928
 - D.XVa: Heavier version (LVA chose 'in-between' D.XVI instead)
 -- https://fokker-aircraft.com/database/fokker-d-type/fokker-d-xv.html

Fokker D.XVI - 1929 single-seat biplane fighter for LVA, x 22
 - D.XVI : Built in place of D.XVa, first flight 08 July 1929
 - D.XVI (prototype) : 1 x 450 hp AS Jaguar, span 9.60 m, x 1
 -- Prototype D.XVI was cowl-less, prod. D.XVI Townsend rings
 - D.XVI (export) : China (1),* Hungary (4),** Italy (1)
 -- * Chinese D.XVI became person mount of Manchurian warlord
 -- ** Hungarian D.XVIs powered by single-row Bristol Jupiter
 -- D.XVI used thinner, Fokker-devised airfoil (not Clark YH)

Fokker D.XVII - [Project] 1930 2-seat D.XVI variant for LVA
 - D.XVII (I): Referred to as "1 1/2-zitter" ("1 1/2-seater")

Fokker D.XVII - 1930 single-seat biplane for LVA and LA/KNIL
 - D.XVII (prototype): Rebuilt D.XVI, Curtiss V-1570 Conqueror
 -- Conqueror-powered D.XVII built for evaluation by LA/KNIL
 - D.XVII : 1 x 595 hp R-R Kestrel IIS,* span 9.60 m, x 11
 -- * Engine options: 790 hp Lorraine Pétrel, 690 hp HS 12Zbrs
 - D.XVII-A: [Project] 1931 D.XVII w/ radial, poss. aka D.XVIII
 - D.XVIIB: Cockpit canopy, 1 x 690 hp Hispano-Suiza 12Zbrs, x 1
 - D.XVII (?): [Project] D.XVIIB vers. armed with moteur-canone

Fokker D.XVIII - [Project] Feb 1931 low-winged fighter aircraft
 - D.XVIII (1): 1 x 600 hp Curtiss V-1570 Conqueror, span ?? m

Fokker D.XVIII - [Project] July 1931 biplane fighter aircraft
 - D.XVIII (2): 1 x radial, presumed orig. desig, for D.XVIIA

Fokker D.XIX - [Project] 1934 single-seat biplane for LA/KNIL
 - D.XIX: Encl'd cockpit D.XVII variant, related to D.XVIIB ?
 -- Ontwerp[/u] 110: Possible design number for the Fokker D.XIX
 -- LA/KNIL preferred low-winged Ontwerp[/u] 112, leading D.XXI

Fokker D.XX - [Project] 1934 liquid-cooled, fixed-u/c fighter
 - D.XX : No details other than coolant radiator in fuselage

Fokker D.XXI - 1936 single-seat, low-wing monoplane fighter, aka D.21
 -- Ontwerp[/u] 112: Early incarnation of what would become the D.XXI/D.21
 -- Ontwerp[/u] 112 studies included liquid-cooled vers., poss R-R Kestrel
 -- https://www.secretprojects.co.uk/forum/index.php/topic,3514.msg242045.html#msg242045
 - D.XII-1: Mar 1936 prototype FD-322, 1 x 645 hp Bristol Mercury VI-S
 -- D.XII fighter designed for NEI use but LA/KNIL requirements changed
 -- D.XII offered for export in 1936 with a range of engine options*
 -- * 830 hp Mercury VII, 1,100 hp HS 14Ha radial, 925 hp HS 12Ycrs V-12
 - D.XII: 1937 LVA order x 36 (211-246), 1 x 830 hp Mercury VII or VIII
 - D.XXI-1E1 fitted w/ experimental tapered wing w/ washout toward tip
 - D.XII (Denemarken): Fokker-built, Mercury VIII, Danish Army AF, x 2**
 -- ** J-41 and J-42, 1 w/ 2-blade wood, 1 w/ 3-blade prop, pattern a/c
 -- D.XII: Danish-built (Orlogsvæftet), Mercury VI-S, x 10 (1939-1940)
 -- Danish D.XII arm. 2 x 8 mm DISA mg, 1 w/ underwing 20 mm Madsen pods
 - D.XII (Finland): Fokker-built, 1 x 830 hp Bristol Mercury VII, x 7
 -- D.XII Series I a/c from Fokker fitted with PZL-built engines
 -- Finnish D.XII I.sarja:*** 1937, Mercury VII, x 7 (FR-76-FR-82)
 -- NB: FR-76 armed w/ 2 x 20 mm Oerlikon FF cannons until Jan 1940
 -- *** Sarja is Finnish for Series, there were at least 5 sarjan
 -- Finnish VL-built Mercury-engined D.XXIs x 38 (FR-83-FR-120)
 -- Finnish D.XII II.sarja: 1938-39, VL-built, x 14 (FR-83-FR-96)
 -- Finnish D.XII III.sarja: 1939, VL-built, x 21 (FR-97-FR-117)
 -- III.sarja D.XII FR-107 converted to retractable undercarriage
 -- II.- and III.sarja fitted w/ PZL- or Tampala-built Mercury VII
 -- VL-licensed D.XII powered by 750 hp P&W Twin Wasp Junior SB4Gs
 -- Finnish D.XII IV.sarja : P&W Twin Wasp Junior (FRw-118 to 167)
 -- IV.sarja D.XII FRw-167 compl. w/ retr. u/c, conv. to fixed u/c
 -- Finnish D.XII V.sarja : P&W Twin Wasp Junior (FRw-171-FRw-175)
 -- VL-built D.XII V.sarja a/c created in 1944 from spare parts
 -- Finnish D.XII VI.sarja : [Project] Prod'n canc. at end of war
 -- (??) Can anyone confirm this plan for late-war VL D.XXI prod'n?
 - D.XII (Spanje): Hispano Aviaciòn prod'n begun 1938 (completed ?)
 -- Ontwerp[/u] 119: [Project] D.XXI with 860 hp HS 12Ybrs, span as D.XXI
 -- Likely related to 'liquid-cooled' Ontwerp[/u] 112, no known drawings
 -- Ontwerp[/u] 141: Some sources say revised D.XXI for submission to LVA
 -- Ontwerp[/u] 197: [Project] 2-seat sports/trainer based on D.XXI****
 -- Ontwerp[/u] 197: 1 x 450 hp Wright Whirlwind J-6 radial, span 11.00 m
 -- **** Alfred Gassner commiss'd by AHG Fokker to use up existing parts

Fokker D.22 - [Project] 1937 single-seat low-wing monoplane fighter
 - D.22: D.XXI successor (but not directly related), aka D.XXII
 -- Ontwerp[/u] 150: 1 x Bristol Hercules, retract. u/c, span 12.00 m
 -- https://www.secretprojects.co.uk/forum/index.php/topic,3514.msg93231.html#msg93231
 -- Ontwerp[/u] 151: 1 x DB 600H or R-R Merlin, retr. u/c, span 11.50 m
 -- https://www.secretprojects.co.uk/forum/index.php/topic,3514.msg93231.html#msg93231

Fokker D.23 - 1939 single-seat, twin-boom, push-pull fighter, x 1
 - D.23: 2 x 540 hp Walter Sagitta I-SR inverted V-12, span 11.50 m
 -- Prototype X-4 flew 30 May 1939, destr. 10 May 1940, aka D.XXIII
 -- Metal constr'n, 2 x cowl 7,9 mm mgs, 2 x 13,2 mm in boom ends
 -- Based on Ontwerp[/u] 155, orig. with a conventional tailwheel u/c
 -- * Possible HS 12Xcrs-powered 155 deriv. intended for France
 -- 3v: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg135120.html#msg135120
 -- Ontwerp[/u] 156: [Project] As tail-wheeled Ontwerp[/u] 155 but larger
 -- Ontwerp[/u] 157: [Project] Gnome-Rhône 14M-powered tail-wheeled 155

Fokker D.24 - [Project] 1939 single-seat low-wing monoplane fighter
 - D.24: Slightly smaller than similar D.22/Ontwerp[/u] 150, 6 x 7,9 mm
 - D.24: Intended as D.XXI successor (but design not directly related)
 -- Ontwerp[/u] 192: 1 x Bristol Taurus III or Bristol Perseus X radial
 -- NB: D-24 desig. re-used for postwar V/STOL project w/ Republic
 -- Fokker-Republic Aviation formed for supersonic TFX proposal

____________________________________________

Fokker DC-serie Two-Seat Reconnaissance-Fighters

The short-lived Fokker DC-serie represents a unique combination of inherited Idflieg designations - 'D' for fighter and 'C' for armed 2-seat aircraft (usually reconnaissance types). Only one DC-serie design was actually produced - the 1923 DC.I - but the DC-serie persisted until 1934 with the unbuilt DC.II project.

There is another 2-seat fighter amongst undesignated projects. This 1933 2-seater is described as being larger than the D.XVII but smaller than the unbuilt DC.II. However, there is no mention of a secondary reconnaissance role. And, since the DC.II dates to a year after this undesignated "tweezits jager", it is highly unlikely that the latter would have been assigned a designation in Fokker's DC-serie.

Fokker DC.I - 1923 2-seat, 2-seat recce-fighter biplane
 - DC.I : 1 x 450 hp Napier Lion W-12, span 12.50, x 10
 -- DC.I was essentially C.IV with short-span C.IVA wings
 -- DC.I  delivered to LA/KNIL in 1925, prototype H-NABZ
 - Loring DC.I: Planned Spanish prod. by Talleres Loring*
 -- * Spanish AF pref. C.IV instead, 20 built at Madrid
 -- https://www.modelbrouwers.nl/albums/coppermine/albums/userpics/14089/DC.I_010bro.jpg
 -- 3v: https://www.modelbrouwers.nl/albums/coppermine/albums/userpics/14089/DCI_maatschets.jpg

Fokker DC.II - [Project] 1934 2-seat recce-fighter biplane
 - DC.II: 1 x (??) hp (??), span (??) m, designed for LVA

____________________________________________


Fokker G-serie Jachtkruiser Fighter Designations - 1937-1939

The Fokker G-serie designations have no obvious connection to wartime German 'G' designations. The latter stood for Groß (Large) and referred to heavy bombers. For the Fokker G-serie, the 'G' does not seem to stand for anything at all.

The Fokker G-serie of the late 1930s were all Jachtkruisers - 'Fighting Cruisers' or heavy fighters - and their multi-purpose derivatives. [1] Only the 1937 G.1 was built. The designation of the unbuilt G.2 changed several times as its role was refined. The G-serie ended with the unbuilt G.3 for the LA/KNIL in the Netherlands East Indies.

Fokker G.1 - 1937 twin-engined multi-seat, twin-boomed fighter
 - G.1: Multi-seat heavy fighter for LVA, based on Ontwerp[/u] 129
 -- Ontwerp[/u] 129: Smaller nacelles, air-cooled inline engines
 - http://www.secretprojects.co.uk/forum/index.php/topic,2740.msg86732.html#msg86732
 -- Ontwerp[/u] 130: Project designation for original G.I prototype
 - G.1 : Prototype (X-2), 2 x 750 hp Hispano-Suiza 14Ab-02/03
 - G.1 : Prototype (X-2) re-eng'd w/ US Pratt & Whitney radials
 -- Ontwerp[/u] 138" Enlarged G.IA for LVA, Bristol Mercury VIIIs
 - G.1A: Enlarged, 3-seat, Mercury-engined vers. for LVA, x 36
 -- G.1A: 2 x 830 hp Bristol Mercury VIII radials, span 17.16 m
 -- G.1A 302 : Experimental conv., underwing hydr. dive brakes
 -- G.1A 304 : Exper'l conv., belly observer glazed position
 - G.1B: 'Productionized' vers. of the 2-seater 'X-2' prototype
 -- G.1B: 2 x 750 hp P&W Twin Wasp Junior SB4G, span 15.85 m
 -- Undeliv. G.1 orders: Spain (12, taken by LVA),* Sweden (18)
 -- Denmark acquired a license to produce the G.1B locally
 -- * LVA G.1B to be armed with 2 x 23 mm Madsen + 2 x mgs**
 -- ** Some LVA G.1Bs armed with 4 x 7,9 mm mgs in May 1940

Fokker G.2 - [Project] 1937 twin-engined jachtkruiser, G.1 deriv.
 - G.2: 2 x 830 hp Bristol Mercury VIII radials, span ?? m
 -- Ontwerp[/u] 154: 3-seat* single-fuselaged, twin-tailed aircraft
 -- Unbuilt G.2 was redesig. C.16 and finally CG.2 by the LVA
 -- * Quoting German reports, Aneta-ANP said 4 crew, 09 Feb 1940
 -- http://resolver.kb.nl/resolve?urn=ddd:010984258:mpeg21:pdf
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg42192.html#msg42192
 -- Also see G.2 alternatives: Ontwerp[/u]en 195, 198, 198, and 199

Fokker G.3 - [Project] 1939 twin-engined 3-seat jachtkruiser
 -- Ontwerp[/u] 186: 2nd  "Indische jachtkruiser" concept for LA/KNIL
 - 186: 2 x 1,050 hp Bristol Taurus 2-row radials, span (??) m
 -- https://www.secretprojects.co.uk/forum/index.php/topic,29012.msg306964.html#msg306964
 -- Also see: Ontwerp[/u] 184, Ontwerp[/u] 185, and Ontwerp[/u] 201

____________________________________________

[1] Note: There are mentions of circa 1921 Fokker gliders designated G.I and G.II. This is almost certainly a reference to the F.G.1 and F.G.2 Rhon competition gliders.

____________________________________________

Fokker Fighter Aircraft Ontwerpen

Ontwerp 110 - 1934, no details, possibly design for Fokker D.XIX

Ontwerp 112 - Low-winged monoplane fighter, liquid-cooled engine
 - 112: Early incarnation of what will be built as the D.XXI/D.21

Ontwerp 119 - [Project] Single-engined, single-seat monoplane fighter
 - 119: 1 x 860 hp HS 12Ybrs, dimensions approx. as per the D.XXI/D.21
 -- Likely related to 'liquid-cooled' Ontwerp 112, no known drawings

Ontwerp 123 - [Project] 1935 2-seat fighter design for Finland
 - 123: Later offered to Turkey, IML was also interested in 123*
 -- * IML mentions Ontwerp 123 in 29 March 1935 letter to the MvD

Ontwerp 124 - [Project] 1935 D.XVII/D.XIX biplane fighter variants
 - Ontwerp 124 : D.XVII/D.XIX deriv. with an enclosed cockpit
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg152235.html#msg152235
 - Ontwerp 124A: D.XVII/D.XIX deriv. with an open cockpit

Ontwerp 129 - [Project] 1936 Twin-engined, twin-boomed fighter
 - 129: 2 x 400 hp 16-cylinder radial,* 2 x 20 mm + ?? x mgs
 -- 3v: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg86732.html#msg86732
 -- * Sketch shows inverted-V engines (poss. IV-16s), not radials
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg307084.html#msg307084

Ontwerp 130 (1) - G.1 (HS 14Ab, then P&W Twin Wasp Junior)
 - G.1 prototype 'X-1': 2 x 750 hp Hispano-Suiza Ab-02/03
 - G.1 prototype conv.: 2 x 750 hp P&W Twin Wasp Junior SB4G
 -- Ontwerp 130 also listed as a Blenheim-ish medium bomber
 - Ontwerp 135: 1936 'Super G.1' light bomber, Mercury VIII

Ontwerp 138 - [Project] 1937 enlarged Fokker G.1A for LVA*
 -- * But most sources identify as a twin-engined transport

Ontwerp 150 - [Project] 1937 single-seat, single-engined fighter
 - 150: aka D.22, 1 x Bristol Hercules, retr. u/c, span 12.00 m
 -- Ontwerp 150 appears similar to D.21 but was a new design
 -- https://www.secretprojects.co.uk/forum/index.php/topic,3514.msg93231.html#msg93231

Ontwerp 151 - [Project] 1937 single-seat, single-engined fighter
 - 151: aka D.22, 1 x DB 600H or R-R Merlin, retr. u/c, span 11.50 m
 -- Ontwerp 151 would appear similar to D.21 but was a new design
 -- https://www.secretprojects.co.uk/forum/index.php/topic,3514.msg93231.html#msg93231

Ontwerp 154 - [Project] 1937 twin-tailed jachtkruiser, G.1 deriv.
 - 154: aka LVA G.2; nose, dorsal, and ventral gun positions
 -- Ontwerp 154 redesignated C.16, then, in 1939, redesig. CG.2
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg42192.html#msg42192

Ontwerp 155 - [Project] 1938 Twin-boomed tandem-engined fighter
 - 155: aka D.23, but, orig., had a conventional tailwheel u/c

Ontwerp 156 - [Project] 1938, as tailwheeled Ontwerp 155 but larger

Ontwerp 157 - [Project] 1938, as orig. 155 but 2 x Gnome-Rhône 14M*
 -- * Some sources claim an HS 12Xcrs-powered 155 deriv. for France
 -- 3v: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg135120.html#msg135120

Ontwerp 162 - [Project] 1938 high-winged 2-seat fighter, retr. u/c
 - 162: To Inspectie der Militaire Luchtvaart spec., not offered

Ontwerp 163 - [Project] 1938 G.1-based strategic recce/jachtkruiser
 - 163: All-metal, G.1-based observation deriv., 2 x DB 600 V-12s*
 - ** Some sources claim fuel-injected Daimler-Benz DB 601 engines
 -- To Inspectie der Militaire Luchtvaart spec., but not offered

Ontwerp 164 - [Project] 1938 high-winged 2-seat fighter, fixed u/c
 - 164: To Inspectie der Militaire Luchtvaart spec., not offered
 -- Ontwerp 164 effectively Ontwerp 162 w/o a retractable main u/c

Ontwerp 179 - [Project] 1939 3-seat recce/army co-op. G.1 variant
 - 179: Projected for the ML, Belgium, and Sweden, in 3 variants
 -- Observer's nose position or under-fuselage glazed position
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg146603.html#msg146603

Ontwerp 184 - [Project] 1939 "Indische Jachtkruiser" (1st) concept
 - 184: 2 x Bristol Mercury, convent'l fuselage, twin tails/rudders*
 -- * Similar to Ontwerp 154 but lacking under-fuselage gun position
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg307084.html#msg307084

Ontwerp 185 - [Project] 1939 "Indische Jachtkruiser" Ontwerp[/u] 184 alt.
 - 184: Essentially conventional-fuselage G.1, Sketch 2061 was lost

Ontwerp 186 - [Project] 1939 "Indische Jachtkruiser" (2nd) concept
 - 186: Chosen as Fokker G.3, 2 x Bristol Taurus 2-row radials
 -- https://www.secretprojects.co.uk/forum/index.php/topic,29012.msg306964.html#msg306964

Ontwerp 187 - [Project] 1939 "Indische Jachtkruiser" (3rd) concept
 - 187: Slightly-enlarged 186, 2 x DB 600H or R-R Merlins (??)
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg307084.html#msg307084

Ontwerp 192 - [Project] 1939 Single-seat, single-engined fighter
 - 192: 1 x Bristol Taurus III or Perseus X radial, aka D.24
 -- Derived from, but slightly smaller than, Ontwerp 150/D.22

Ontwerp 195 - [Project] 1939 jachtkruiser, alt. to Ontwerp 154/G.2
 - 195: Similar to Ontwerp[/u] 154 but stockier pod-and-boom fuselage*
 -- * Nose also shorter with gun position resembling that of T.V
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg42192.html#msg42192

Ontwerp 198 - [Project] 1939 jachtkruiser, alt. to Ontwerp[/u] 154/G.2
 - 198: Low-winged, fuselage similar to Ontwerp[/u] 195 with gun turret
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg42192.html#msg42192

Ontwerp 199 - [Project] 1939 jachtkruiser, alt. to Ontwerp 154/G.2
 - 199: As Ontwerp 198 except flex. gun position in place of turret
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg42192.html#msg42192

Ontwerp 201 - [Project] 1940 all-metal jachtkruiser for ML/KNIL
 - Ontwerp 201: A continuation of the Ontwerp 186/G.3 concept

_____________________________________________
« Last Edit: April 13, 2018, 01:38:07 pm by Apophenia »

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #7 on: April 11, 2018, 04:27:12 pm »
Fokker F-serie Verkeersvliegtuigen - Transport Aircraft

Some confusion arises from the varying use of 'F' prefixes in early Fokker designations. The first Fokker F.I was the small series of 1917 biplane V 5 trial fighters ... but that F.I was a German Idflieg designation (Fokker seems to have referred to the type as the D.VI). There was one postwar Fokker fighter with an 'F' series designation - the F.IV, a 1922 D.X fighter derivative used by the US Army as its PW-5. But the F.IV designation was an anomaly. The rest of the 'F' serie were (or, at least, began as) commercial aircraft designs. [1]

The postwar 'F' simply stood for 'Fokker'. With exception of the F.IV noted above, 'F' was applied as a prefix only to land-based commercial aircraft (or their direct derivatives fitted with floats). That said, in the 1920-1925 Fokker designation sequence, projects at the study stage could be assigned role designating letter. These began with the 'F' for Fokker followed by the role designating suffix. For completeness, 'F'-compound study designations are listed below. However, note that once such designs were chosen for production, they were assigned new designations. [2]

Fokker's modifier suffix style were covered in the introduction. The most common such modifier was the 'W' (Watervliegtuig) for aircraft fitted with pontoons. Then there is the '/3m' (driemotorig) suffix to indicate trimotor adaptations. [3]

The Fokker 'F' designations for commercial aircraft ran sequentially from the abandoned F.I on 1918 to the unbuilt Fokker F.XXI project of the early 1930s. By 1936, Fokker brochures were using Arabic numerals Fokker airliners were assigned 'F' designation numbers based on their seating capacity. But another change to the system began in 1935 with the F.XXXVI - the first Fokker commercial design to be assigned an 'F' designation numbers based on its seating capacity rather following the chronological sequence.

Fokker F-serie Arabic Numeral Designations by Seating Capacity

Being Fokker, there were exceptions to the new 'rules'. F.XXXVI, later F.36, only sat 32 passengers. But, since Fokker's US plant had already produced an F.XXXII, that number was considered 'taken'. So, the marketing department added in the crew of four for a total of 36 seats. That aside, it could be said that the Fokker F.36 and 1935 F.22 follow the now-'correct' pattern. Yet, proposed retractable undercarriage developments of those two types - the F.37 and F.23, respectively - have new type numbers without changing the number of seats. Another anomaly is the Fokker F .. 76 m2 airliner project. Here the 'type number' obviously refers to the proposed wing area. But, as to why this 'designation' employs an ellipse with only two periods is anyone's guess!

The 'F' for 'Fokker' series of designations will be listed in the next post. In that list, designations based on seat numbers will be listed as if they were numerically-based. For completeness, a listing of Fokker transport Ontwerpen will follow the 'F' for 'Fokker' series.

Listed directly below are Fokker transport and commercial aircraft outside of the F-serie sequence. First are 'F' compound designations in the 1920-1925 letter system (not all of which are transports or commercial types). Below that are the "Ontwerpen met een naam" - transport design concepts with names (but no known Ontwerp number):

_________________________________________


[1] A perhaps related anomaly belongs to the unbuilt T.III-F project of 1923. Intended for civil use, this was to be a cabin version of the T.III-W torpedo-bomber floatplane. In this sole example, the 'F' for Commercial letter was applied as a suffix.

[2] The same applies to the earlier German-style 'V' for Versuchs designations applied to prototypes. The first commercial example would be the aborted V 44 which was to become the F.I in the new designation sequence.

[3] The '/3m' suffix was shared with Germany's Junkers - a firm with earlier connections to Fokker.

_________________________________________


Fokker F-series Compound Designations - 1920-1925 Designation Series

The numbering of these Compound Designation projects can be hard to follow and swing between Roman and Arabic numerals. In some cases - eg: F.B.I and F.G.1 - the number one was used, albeit in different numeral styles. In other cases - eg: F.T. and F.W. - the number one was omitted. To make matters worse, the F.W. was the same things as the W.II ... but there doesn't seem to be an 'F.W.2' or 'F.W.II'.

Below is a listing of the various 'F'-related compound designations.

F.B. serie - Fokker Boot (ie: vliegboot or flying Boat)

 - F.B.I : Fokker B.I flying boat for the MLD

 - F.B.II: B.II flying boat, completed but rejected by the MLD

F.G. serie - Fokker Glijdvliegtuig (Fokker Glider)
 - Discussed below

F.T. serie - Fokker Torpedovliegtuigen (Fokker Torpedo-bomber)

 - F.T. : T.II delivered to the US Navy

 - F.T.2: [Project] T.II development

F.W. serie - Fokker Watervliegtuig (Fokker Amphibian) [2]

 - F.W.: [Project] Single-engine 6-pax airliner floatplane
 -- F.W. : Prob. orig. T.II-W deriv., later T.III-W airframe
 -- aka W.II, by 1923 project was redesignated as T.III-F

 - F.W.3: [Project] Single-engined twin-float torpedo bomber
 -- F.W.3 realized in 1923 as T.III floatplane for Portugal

It should also be mentioned that, in this period, Fokker airliner designs on floats could also be assigned 'W' (Watervliegtuig) designations. In the examples given below, W.II was a synonym for the unbuilt F.w. project (later redesignated T.III-F); while the V.W.3 project breaks with all Fokker designation 'rules'. Described as a "verkeersvliegtuig op drijvers" or 'commercial aircraft on floats', the V.W. prefixes seem to combine role with Watervliegtuig with no mention of Fokker.

W.II --- [Project] "Avion commercial" (Commercial Aircraft)
 - W.II: 6-pax airliner on floats, same as F.W. (above)

V.W.3 - [Project] 1920 twin-engined airliner on twin floats
 - V.W. is for Verkeers Watervliegtuig (Commercial Amphibian)

F.G. Compound Designations for Fokker Glijdvliegtuigen

Although Fokker compound designations were often temporarily applied to projects in development, the Fokker gliders never seem to have received any other 'permanent' designations. There are mentions of 'G.I' and 'G.II' gliders. I have assume these to be synonymous with the F.G.1 and F.G.2. (Does anyone know otherwise?)

There's a deal of confusion over Fokker's gliders. The Fokker F.G.3 seems to simply be a second copy of the F.G.1. The F.G.2 and F.G.4 are also difficult to distinguish from one another. I suspect that the difference is that the F.G.2 featured wing-warping while the otherwise similar F.G.4 had ailerons.

Fokker Glijdvliegtuigen (Fokker Gliders)

Fokker F.G.1 - 1919 single-seat equal-span biplane
 - F.G.1: Equal-span wings, open framework
 -- Twin-boomed tails with 4 x sep. rudders
 -- Wood skid u/c with steel-tube tip skids
 -- Vaysse (VP # 8) gives the # 3, and calls the single-seat biplane "The Scout".
 -- Itford-Hill, the forgotten contest, Pierre Vaysse, Vieilles Plumes n° 7, winter 1998
 -- https://images.memorix.nl/nda/thumb/620x620/f5ead71e-6ba1-b847-0523-bbe134512136.jpg
 -- https://images.memorix.nl/nda/thumb/620x620/d9e39d9c-8221-cc3a-2aca-e9c0368a9343.jpg

Fokker F.G.2 - 1922 2-seat, podded equal-span biplane
 - F.G.2: Open tail frame, wing-warping, span 12.00 m
 -- Poor direct. stab. req. added rudder area*
 -- * As a 3rd, constant chord, tail surface
 -- https://images.memorix.nl/nda/thumb/620x620/9a690ba8-ed6e-60db-c77e-57a7ec949690.jpg
 -- http://www.retroplane.net/forum/images/uploads/bocorvin/fokker_fg_2_1_a_229.jpg
 -- 3v: http://aviadejavu.ru/Images6/FT/FT1922/10/607-7.jpg

Fokker F.G.3 - 1922 single-seat equal-span biplane
 - F.G.3: F.G.1 devel., equal-span wings, 9.00 m
 -- Twin-boomed tails with 4 x separate rudders
 -- https://www.j2mcl-planeurs.net/dbj2mcl/planeurs-machines/photos/Fokker_FG-3.jpg

Fokker F.G.4 - 1922 2-seat, podded equal-span biplane
 - F.G.4: Improved F.G.2 with ailerons, span 12.19 m
 -- http://aviadejavu.ru/Images6/FT/FT1922/10/627-3.jpg
 -- 3v: http://www.retroplane.net/forum/images/uploads/bocorvin/fokker_fg_2_2_a_204.png

"Fokker Segelflugzeug" - "Fokker Glider" no details (??)
 - Tekening 9542-to-9544 are lost, presumably from 1921
 -- This was poss. a generic term for the F.G.I or F.G.II

_________________________________________


Fokker Transport Concepts with no known Ontwerp Numbers

"Special machine" - No details, poss. record attempt aircraft
 - Relates to Tekening (Drawing) 11206, which has been lost

"Fokker vrachtvliegtuig" - 'Fokker cargo plane', Tek. 10471 lost
 - According to Frits Gerdessen, this was a scaled-up F.IIa

"Ambulance" - Single-engined biplane cabin medevac floatplane
 - According to Frits Gerdessen, biplane deriv. of the F.V

Tekening 9942 - Large, high-winged three-engined airliner
 - 1 x engine above wing, 3 x crew in open cockpits in nose

Tekening 9837 - Poss. high-winged, 3-seats in open cockpit
 - Poss. aka 'Ontwerp 1', according to Frits Gerdessen

Tekening 9839 - Poss. high-winged, 3-seats in open cockpit
 - Poss. aka 'Ontwerp 2', according to Frits Gerdessen

1933 transport/feederliner, 2 x DH Gipsy Major 4-cyl inlines

1935 Transatlantic mailplane concept, three or four-engines
 - Variant: F.22 wing, 4-engines, twin tailbooms* and tails
 -- * Tailbooms extend aft from inboard engine nacelle ends

1935 Trimotor mailplane (postvliegtuig) "for transocean use"
 - Prob. connected to 3-engined 'Transatlantic mailplane'

1936 10-passenger light airliner, 2 x Bristol Aquila radials

1936 various "Intercontinental" Transatlantic airliner concepts
 - Vers. w/ 26, 50, 60, 80, and 100 pax; 10, 14, and 16 crew
 -- Weights 74, 110, and 159 tons; doubtless Ontwerp 160 vari.

Tekening 45792 - 1937 aircraft with auxiliary undercarriage*
 - * Detachable, re-usable, flying u/c, to A. Plesman patent
 -- Connected w/ 1938 Ontwerp 160a 6-engine airliner concept

_________________________________________

Fokker F-serie Transport aircraft (Verkeersvliegtuigen)

Fokker F.I - [Project] 1919 1 crew/5 pax high-wing cabin a/c
 - F.I: aka V 44, 1 x 185 hp BMW IIIa 6-cyl., span ~ 16.10 m
 -- V 44 was re-desig. V.I in Fokker's postwar desig. system
 -- F.I/V 44 const. begun but not completed, repl'd by V 45*
 -- * Open-seat V 44/V.I aband'd in favour of V 45/V.II/F.II

Fokker F.II - 1919 single-engined, high-winged cabin monoplane, ~23
 - Fokker V 45 : Schwerin-built prototype, flown to Neth., KLM use
 -- V 45: As built, 1 x 185 hp BMW IIIa, re-eng. w/ 180 hp Mercedes
 -- V 45: In KLM use, re-engined again w/ 240 hp AS Puma as an F.II
 - Fokker F.II : 1 x 240 hp Armstrong Siddeley Puma, span 16.10 m, x 2
 - Fokker-Grulich F.IIa: 1926 German-built vers., 1 x 250 hp BMW IV
 - Fokker-Grulich F.IIb: Re-eng'd Grulich F.IIa, 1 x 320 hp BMW Va
 -- DLH inherited 19 F.IIs in 1926, one used as a crop-duster
 -- http://aviadejavu.ru/Images6/MY/MY76-4/8-1.jpg

Fokker F.III - 1920-1921 high-winged cabin airliner, ~ 78
 - F.III : Slightly enlarged derivative of F.II, span 17.62 m
 -- 1 x 185 hp BMW IIIa (1 x prototype and 4 x  Malert airlines)
 -- 1 x 230 hp Siddeley Puma (12 x KLM, 1921-22), other engines:
 -- 250 hp BMW IV; 320 BMW Va; 350 hp BMW VI; 230 hp Hiero IVH;
 -- https://www.flightglobal.com/pdfarchive/view/1921/1921%20-%200355.html
 -- 1 x 240 hp Gnome-Rhône Titan or 320 hp G-R Jupiter VI radial
 - F.IIIa: [Project] Enlarged wing, area 45.65 m2 (491.4 sq ft)
 - F.IIIc: [Project] Enlarged wing, area 52.02 m2 (560.0 sq ft)
 - F.III : (Special desig.?) Deruluft vers., raised parasol wing
 - Fokker-Grulich F.III : German-built, 1 x 230 hp BMW IV engine
 - Fokker-Grulich F.IIIa: Mod(s) unknown, poss. same as F.III
 -- Fokker-Grulich F.III init. operated by Aero Lloyd & Deruluft
 - Fokker-Grulich F.IIIb: German-built, re-engined with BMW Va
 - Fokker-Grulich F.IIIc: German-built, eg c/n 1568, D-743
 -- http://aviadejavu.ru/Images6/MY/MY76-4/8-4.jpg
 - Fokker-Grulich V.1: F.III mod, eg: c/n 1653, RR-2* / D-902
 -- * R-R Eagle, crashed 1925, rebuilt as V.1, revised structure
 -- Canadian Aerophilatelic Society claim 2 x Fokker-Grulich 'VI'
 -- Pg 26, http://www.aerophilately.ca/ca-198610-v002n03-w005.pdf
 - Fokker F.III-F: (??)

Fokker F.IV - 1921 single-engined 10-pax cabin* monoplane, x 2
 - F.IV: 1 x water-cooled 410 hp Liberty L-12,** span 24.51 m
 -- * The crew of 2 sat side-by-side in an open-cockpit
 -- ** Sources differ over Ford Motor Co. vs Hall-Scott built
 -- F.IV offered w/ Liberty L-12, R-R Eagle IX, Napier Lion II
 - T-2: US Army Air Service eval. desig. for Fokker F.IVs ***
 -- AS.64233 fitted with LR tanks, AS.64234 conv. to ambulance

Fokker F.V - [? Project ?] 1921 (Frits Gerdessen speculation)
 -- Based on F.IV and F.VI flying in 1921, F.V not until 1922

Fokker F.V - Dec 1922 single-engined 8-pax cabin plane*
 - F.V:  1 x 360 hp R-R Eagle V-12, span 16.00 m, x 1
 -- * F.V convertable as parasol monoplane or biplane
 -- Sole F.V H-NABW sold to ÖLAG, Austria, May 1926**
 -- ** Airwar.ru claims F.V sold to Russia not Austria
 -- http://www.airwar.ru/enc/cw1/fokf5.html

Fokker F.VI - 1921 single-seat parasol fighter, x 11
 - F.VI: 1 x 300 hp Wright Model H V-8,* span 12.00 m
 -- Develop'd for the US Army Air Service as Fokker PW-5
 -- * One of several Wright Hispano-Suiza developments
 -- The F.VI was a shorter-span develop of the V.41/D.X

Fokker F.VII - 1924-25 high-wing cabin monoplane/airliner, 145
 - F.VII : 1924 init'l prod. model, 1 x 360 hp  R-R Eagle, x 5
 - F.VIIa: 1925 prod. model, 1 x 400 hp Packard Liberty,* x 37
 -- * Later stressed to accept powerplants in 350-525 hp range
 - F.VIIa/3m: Aug 1925 trimotor, 3 x 200 hp Wright Whirlwind J4
 - F.VIIa/3m-M: Military vers., 3 x 200 hp AS Lynx, 10 x LVA
 - F.VIIb: Trimotor variant with longer-span wings, 21.71 m
 - F.VIIb/3m: July 1928 trimotor, 3 x 300 hp Wright Whirlwind J6
 - F.VIIb/3m-M: Military, some LVA, Poland (Plage & Laskievicz)
 -- C-2 : F.VIIb/3m-M desig. for USAAC eval. (but no 'Y' prefix)
 - F.VIIb-W: [Project] 4-engined, float-fitted F.VIIb develop't
 -- CC.I: [Project] 1931 luchtkruiser (multi-role a/c) deriv.**
 -- ** CC.I was to be a twin-engined F.VII deriv. for the LVA

Fokker F.VIII - [Project] 1922 single-engine sesquiplane airliner
 - F.VIII: Variation on convertible F.V concept, same fuselage

Fokker F.VIII - 1927 twin-engined high-wing transport a/c, x 10*
 - F.VIII : 2 x 480 hp Bristol Jupiter VI radials, span 23.00 m
 -- * F.VIII: Prototype (x 1), Fokker (x 7), Manfred Weiss (x 2)
 - F.VIIIa: 2 x repositioned 690 hp Wright Cyclones, 1 x conv'n
 - F.VIII/3m: [Project] 1926 trimotor airliner, larger than F.VIII
 -- F.VIII/3m: [Project] 3 x 200 hp Wright Whirlwind J4 radials
 - F.VIII-W: [Project] F.VIII floatplane (Tek. 10165, 15-10-1926)
 -- Ontwerp 118: [Project] F.VIII with 2 x wing-mounted P&W Wasps

Fokker F.IX - 1929 trimotor high-winged monoplane cabin airliner
 - F.IX : Prototype, 3 x 500 hp G-R Jupiter XI, span 27.16 m, x 2
 -- Fokker F.IX: 20 seats, first flight on 23 August 1929
 - F.IX-D: Civil Czech Avia license, 3 x 580 hp Walter Pegasus
 - F.IX-M: aka F.39 or F.IX-M2, Avia bomber vers., 3 x Pegasus
 - F.IX-W: [Project] 1929 F.IX twin-float seaplane derivative
 - F.39 : Avia bomber development for Czechoslovak Air Force
 - F.139: [Project] Avia twin-engined deriv. of F.39 bomber

Fokker F.X - [Project] 1925 trimotor high-winged cabin airliner
 - F.X: Larger than F.VII, engines mounted on (not under) wings
 -- Fokker F.X: From Tekening (Drawing) 9912 dated 18 May 1925
 -- 3v: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164805.html#msg164805
 - F.Xa - [Project] 1925 trimotor high-winged cabin airliner
 - F.Xa: F.X variant with engines suspended under the wings
 -- Fokker F.X-A: From Tekening (Drawing) 9911 dated 19 May 1925
 -- NB: F.10 designation was also applied to US F.VII/3m equiv.

Fokker F.XI - 1929 single-engine high-wing cabin monoplane, x 3
 - F.XI : Based on US Fokker/Atlantic Universal/Super Universal
 - F.XI : Prototype, 1/2+4 pax, 1 x 240 hp Lorraine 7Aa radial
 - F.XI : Prod'n model, 2+6 pax, 1 x 480 hp G-R Jupiter VI, x 2
 --  For Malert; Note that ~120 x Universals/Supers were built
 -- NB: Not to be confused with US F.11 transport flying boat

Fokker F.XII - [Project] 1929 * high-winged 'push-pull' airliner
 - F.XII : 4 x Gnome-Rhône Titan radials (mounted under the wing)
 -- F.XII: Tekening 10576 (29 May 1929), to use F.VIII fuselage
 -- * Date is suspect; "1929" F.XII was prev. the 1928 F.XIII !

Fokker F.XII - 1930 trimotor 14-16-pax high-wing monoplane, x 13
 - F.XII: Mid-capacity airliner; KLM, KNILM; AB Aerotransport
 - F.XII: 3 x 425 hp P&W R-1340 Wasp C9 radials, span 23.02 m
 - F.XII: AB variant (special desig.?), 3 x 500 hp Wasp T1D1
 - F.XII : Danish DDL prototype built by Orlogsvaerfet, x 1*
 -- * (Special desig.?), 3 x 465 hp Bristol Jupiter VI radials
 - F.XIIM: Improved Jupiter-powered DDL variant, 16 pax, x 1
 - F.XII-W: [Project] Pontooned F.XII, Tek. 11172 (10-11-1931)

Fokker F.XIII - [Project] 1928 commercial seaplane for NEI use
 - F.XIII : Twin-engined transport floatplane, T.IV derivative
 -- 3v: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164805.html#msg164805

Fokker F.XIV - 1929 high-winged monoplane cargo aircraft, x 1
 - F.XIV: 1 x 450 hp Gnome-Rhône Jupiter VI, span 20.90 m
 -- Feb 1929 protoype experienced vibrations, poor handling
 - F.XIV/3m: Rebuilt prototype, 3 x 370 hp Lorraine Algol
 -- F.XIV/3m was also conv. from freight to 8-pax airliner
 -- Airliner rebuild tested by KLM but no sales, abandoned
 -- http://www.dutch-aviation.nl/index5/Civil/index5-2%20F14.html

Fokker F.XV - [Project] 1931 Twin-engined* airliner and variants
 - F.XV : Essentially a scaled-up Fokker F.XII trimotor airliner
 -- * Avail. drawings show single- and twin-engined not trimotor
 - F.XV : 3-view drw shows trimotor with underslung wing engines
 - F.XVa: Sideview shows single radial, low-wing, trousered u/c
 -- 3v: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164805.html#msg164805

Fokker F.XVI - [Project] 1931 4-engined evol'n of F.XV (above)
 - F.XVI: 4-engined airliner, 2 x underslung 'push-pull' pairs
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164805.html#msg164805

Fokker F.XVII - [Project] 1931 single-engined 6-9 pax/mailplane
 - D.XVII : 1 x 575 hp P&W Hornet radial engine, span 15.00 m
 -- Multiple designs : For ABA, Swissair, KLM, CIDNA, Air Orient
 - F.VXII : Cowled single-row radial, parasol wing, rear cockpit
 - F.XVIIa: Cowled radial, mid-wing, spats, cockpit was forward
 - F.XVIIb: no details other than largers variant, 9 passengers
 - F.XVIIc: Cowled radial, high-wing, spats, forward-placed cockpit
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164805.html#msg164805
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg239784.html#msg239784

Fokker F.XVIII - 1932 trimotor passenger airliner for KLM, x 5
 - F.XVIII: 3 x 420 hp P&W Wasp 'C' radial engines, span 24.50 m
 -- For the Amsterdam-Batavia route, first flight 30 June 1932
 - F.XVIII: Passenger a/c, 2-3 crew, 12-13 pax seats, 4 berths
 - F.XVIII: WWII conv., 1 dorsal Lewis position, depth charges*
 -- Militarized F.XVIII flew Neth. West Indies anti-sub patrols

Fokker F.XIX - [Project] 1931 4 x push-pull engine F.XVIII deriv.
 - F.XIX: 4 x 250 hp Gnome-Rhône Titans, underslung tandem pairs
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164805.html#msg164805

Fokker F.XX - 1933 high-wing trimotor airliner, retr. u/c
 - F.XX : 3 x 650 hp Wright Cyclone R-1820-F,* span 25.7 m
 -- * KLM later replaced 'F engines with 690 hp R-1820-F2s
 -- Sole prototype PH-AIZ flew 3 June 1933, KLM bought DC-2
 -- Spain 1936, subst. 1 x Walter Mercury, 1 x Shvetsov M-25**
 -- ** Substitutes sources from Letov S-231 & Polikarpov I-16
 - F.XXb: [Project] Reduced-scale F.XX, dimens. as per F.XXI
 -- F.XXb: Outboard engines suspended or mounted on wings
 -- https://oldmachinepress.com/2012/11/16/fokker-f-xx-zilvermeeuw/

Fokker F.XXI - [Project] Reduced-scale F.XX deriv. and alter's*
 -- * Oval cross-section Fokker F.XXI intended for use by KNILM
 - F.XXI : Twin-engined, 2 x (??) hp (??), span 21.50 m (??)
 - F.XXI : Trimotor, 3 x 320 hp P&W Wasp Junior, span 21.48 m
 -- 2v: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164805.html#msg164805
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg239784.html#msg239784
 -- http://www.dutch-aviation.nl/index5/Civil/index5-2%20F21.html

NB: Beginning in the 1930s, 'F' designations refer to seat numbers (exceptions are for projected variants, eg: F.22 to F.23, or F.36 to F.37). The later 'F' designations are listed below in numerical order rather than chronologically.

Fokker F.22 - 1935 4-engined, high-wing monoplane airliner, x 4
 - F.22: 4 x 500 hp P&W Wasp T1D1, span 30.00 m, for KLM & ABA
 - F.22: aka F.XXII, effectively a reduced-scale Fokker F.36
 -- F.23: (Below) Proposed retract. u/c variant of the F.22
 -- Airspeed AS.16: Proposed British licensed-prod'n version

Fokker F.23 - [Project] 1935 F.22 devel. with retract. main u/c
 - F.23: 4 x 550 hp P&W Wasp S3H1-G or 650 hp Gnome-Rhône 9 Kfr
 - F.23: As F.22 except for retr. u/c, engine type, and weights

Fokker F.24 - [Project] 1939 twin-engined, high-winged airliner
 - F.24: 24 pax, 2 x 1,600 hp Wright Twin Cyclone, span 28.50 m
 -- aka Ontwerp 193, F.24 had tricycle u/c, similar to the DC-5
 -- F.24 airliner was apparently ordered by KLM but never built
 -- https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg245948.html#msg245948

(NB: For post-1945 F.25 to F.28, see Post-War Fokker 'F' Types)

Fokker F.36 - 1934 high-wing 4-engined, 4+32 pax airliner, x 1
 - F.36: aka F.XXXVI,* non-sequential desig. based on seating
 -- * KLM referred to the F.36 as the 'F.Y', 6 x ordered in 1932
 -- F.36/'F.Y' to be used on NEI route, KLM chose DC-2s instead
 - F.36: 4 x 750 hp Wright Cyclone SGR-1820-F2s, span 33.00 m
 -- F.36 had traditional Fokker mixed constr., fixed main u/c
 -- F.37: (Below) Proposed retract. u/c variant of the F.36
 -- F.40: (Below) Listed as F.36 devel., more likely replacement
 -- Ontwerp 115: Proposed bomber using F.56 wings, aka T.VI
 -- Airspeed AS.20: Proposed British licensed-prod'n version

Fokker F.37 - [Project] 1935 F.36 devel. with retract. main u/c
 - F.37: 4 x 850 hp Wright Cyclone radials, span 33.00 m
 - F.37: As F.36 except for u/c, engine model, and weights
 -- F.37 appeared in 1936 Fokker brochures, related to F.40

NB: Speculation on 'F.38' & 'F.39 tries to impose a sequence

Fokker F.40 - [Project] 1935 40-pax airliner in various layouts
 - F.40: 4-engined, twin-boomed airliner, accommodation in wing
 -- F.40: F.36/F.37 deriv. in either high- or low-wing config's
 -- aka Burnelli-type Ontwerp 160 'Intercontinental' aircraft

Fokker F.56 - [Project] 56 passenger,* 'double-decker' airliner
 - F.56: 4 x 1,000 hp engines (unspecified type, span 38.50 m
 -- ** 28-36 pax also mentioned, poss. in a 'sleeper' config.
 -- F.56 aka Ontwerp 127, mixed const., European & NEI routes
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg86732.html#msg86732

Fokker F.60 - [Project] Transatlantic airliner, 60 passenger
 - F.56: 4 x (??) hp engines (unknown type), span (??) m
 -- No obvious Ontwerp connections for any 60 pax airliners

Fokker F.160 - [Project] Twin-boomed lifting-body airliner (??)
 - F.160: Mentioned by  Christophe 'Tophe' Meunier
 -- http://www.kristofmeunier.fr/index2.htm

Fokker F.180 - [Project] Twin-boomed lifting-body airliner
 - F.180: 4-5 x (??) hp engines (unknown type), span (??) m
 -- Likely an Ontwerp 160/180 'Intercontinental' variation

Fokker F .. 76 m2 - [Project] 193? high-winged airliner*
 -- * NB: The 'F .. 76 m2  designation refers to wing area
 - F .. 76 m2: 2 x Wright R-1820F Cyclones (as per F.24)
 -- F .. 76 m2: Poss. a proposed devel. of F.XX or F.XXI

_________________________________________

Fokker Postwar F-serie Transport Aircraft Designations

As with pre-WW2 Fokker transport designations, the postwar designation style shifted over time. At first, postwar 'F' designations were written with with a period - eg: F.27 - although, in the press, the period was often replaced with a hyphen. Sub-types were given Series numbers in hundreds - eg: F.27 Series 200, usually presented as F.27-200 (or F-27-200). Later on, the period was abandoned, giving the common style F27-200.

The sequential postwar 'F' designations end with the unbuilt F.29 project. In the 1980s, Fokker returned to its prewar habit of applying 'F' series designation numbers based on passengers carried (now rounded off). This new designation style began with the Fokker 50 and 60 (modernized F.27s) and continued with the Fokker 70, 80, 100, and 130 (modernized F.28s). After Fokker's bankruptcy, Rekkof/NG Aircraft have tried to resuscitate the Fokker 100 series - resulting in the number 120 being added to the mix with the F120 NG.

For consistancy on the earlier postwar 'F' designations, I have stuck with the 'F-period-number-hyphen-subtype' style throughout (despite F28 and F29 being seen far more frequently than F-28 and F-29). For the later designation series, I have omitted the 'F' (despite 'F.100' being a common early reference to the Fokker 100). An exception is made for the Rekkof F120 NG which seems always to feature that 'F'.

By far, the most widely-produced postwar Fokker design was the F.27 series. For convenience and clarity, I have broken up the listing of the various F.27 Series, sub-types, and projects.

Postwar Fokker 'F' Series Airliners

F.24 - [Project] 1939 twin-engined, high-winged airliner
 - F.24: 24 pax, 2 x 1,600 hp Wright Twin Cyclones, span 28.50 m
 -- aka Ontwerp 193, F.24 had tricycle u/c, similar to the DC-5
 -- F.24 airliner was apparently ordered by KLM but never built
 -- https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg245948.html#msg245948

F.25 - Promotor, 1947 twin-boom pusher air taxi*
 - F.25: 1 x 190 hp Lycoming O-435A pusher, span 12.01 m
 -- * 1 + 3 pax, wooden construction, Frits Diepen concept

F.26 - [Project] Phantom low-wing twin jet airliner
 - F.26: 2 x 2,265 lbf R-R RB.41 Nene turbojets, span 18.20 m
 -- Engined below fwd fuselage, all-metal contruction, 17 pax
 -- http://www.dutch-aviation.nl/index5/Civil/index5-2%20F26%20Phantom.html   
 -- https://www.secretprojects.co.uk/forum/index.php/topic,1430.msg19824.html#msg19824
 -- https://www.secretprojects.co.uk/forum/index.php/topic,5293.msg42071.html#msg42071

F.27 - 1955 Friendship high-winged 32-seat feeder/airliner
 -- F.27 Friendship meant specifically as DC-3 replacement*
 -- * From Summer 1950 Ontwerp 275 studies, various config.
 - F.27 1st prototype: Nov 1957, 32 pax, length 22.65 m
 -- F.27 1st prototype: R-R Dart RDa.(?) Mk.507 turboprops
 - F.27 2nd prototype: Jan 1957, 36 pax, length 23.56 m
 -- F.27 2nd prototype: 2 x R-R Dart RDa.6 Mk.511-7E

F.27 Freightship - [Project] 1958 all-cargo variant, 2.32 m cargo door
 - F.27 Freightship: Evolved into F.27-300/-400 Combiplane series

F.27 Friendship All-Company - [Project] 1958 executive/staff variant

F.27-100 - Mar 1958 prod. vers, 40/44/48 pax + 3.58 m2 cargo
 - F.27-100: 2 x 1,715 shp R-R Dart RDa.6 Mk 514-7 turboprops
 -- F.27-100: Single-slotted flaps (double slots unnecessary)

F.27-200 - Upgraded engines for improved hot-and-high performance
 - F.27-200: 2 x 2,000  shp R-R Dart RDa.7 Mk 532-7R turboprops

F.27-300 Combiplane - Cargo/pax combi variant based on F.27-100
 - F.27-300 : QC variant, 91.5 x 70" freight door, floor rollers
 - F.27-300M: KLu vers., 2 x enlarged paratroop doors, aka F.27M

F.27-400 Combiplane - F-27-200 airframe with F-27-300 combi features
 - F.27-400: QC variant, 91.5 x 70" freight door, floor rollers
 - F.27-400:  2 x 2,150 shp Rolls-Royce Dart RDa.7 Mk.532-7 turboprops
 -- Note: Some F-27-400s fitted with 2,150 shp Dart RDa.7 Mk.532-7s

F.27-500 - 1967* stretched-fuselage (1.5 m) F.27-100 deriv.**
 - F.27-500 :  2 x 2,210 shp Rolls-Royce Dart RDa.7 Mk.532-7R
 -- * Design concept emerged in 1961, first order placed 1966
 -- ** L 25.06 m (shorter than sim. Fairchild FH-227), 56 pax
 - F.27-500M: Military vers. of F.27-400, 50 paratroops***
 -- *** Also see list of militarized F.27M variants (below)
 - F27 RE: Re-Engined, modernization study led to Fokker 50
 -- F27 RE: 2 x ~2,200 shp R-R RB506 or P&WC PT7-2R
 - F27 Mark 050 : Marketed as Fokker 50-100 (see below)
 - F27 Mark 0502: Marketed as Fokker 50U utility (see below)

F.27-600 - Nov 1968 airliner based on F.27-400 combi airframe
 - F.27-600 :  2 x 2,210 shp Rolls-Royce Dart RDa.7 Mk.532-7R
 - F.27-600M : Military variant intended for VIP transport role
 - F.27-600RF:  2 x 2,210 shp Rolls-Royce Dart RDa.7 Mk.536-7R
 - F27 Mark 0604: Formal desig., marketed as Fokker 60 (below)

F.27-700 - 1969 airliner, as per F.27-600 but reverts to RDa.6
 - F.27-700:  2 x 1,715 shp Rolls-Royce Dart RDa.6 Mk.514-7
 -- http://www.aussieairliners.org/f-27/vh-tfh/1999.804.html

F.27 flying boat - Not a real project (April Fool’s Day gag)

F.27 4-engined - [Project] 1971 4-engined STOL F.27 development
 - F.27 4-engined: P&WC PT6As, aka P.301 (see Ontwerp 301, below)

F.27 jet deriv. - [Project] 1970s twin-jet F.27 devel., aka P.305
 - F.27 jet: 2 x Avco  Lycoming ALF502, seen as too close to VFW 614
 -- https://www.flightglobal.com/pdfarchive/view/1973/1973%20-%201401.html

F.27M - Troopship military transport vers., 45 paratroops or 24 stretchers
 - F.27M : 2 x 2,190 shp Rolls-Royce Dart RDa.7 Mk.532-7N turboprops
 -- F.27M adopted by the KLu (x 2) were Series 300 a/c, aka F.27-300M
 - F.27MA: [Project] Rear-loading doors vers. (akin to Avro Andover)
 - F.27MS: [Project] As F.27MA but with slats, spoilers, and STOL flaps
 -- https://www.flightglobal.com/pdfarchive/view/1976/1976%20-%202310.html
 - F.27MPS: Maritime Patrol Surveillance aircraft variant of F.27-300M
 - F.27MPA/F.27MAR: Maritime Patrol Aircraft based on F.27-200 airframe*
 -- * Australia, KLu, Spain, Phillipines, Thailand;  Peru based on Ss 400
 - F.27-200ME: [Project] Maritime Enforcer ASW/ASV F.27MPA/F.27MAR deriv.
 -- F.27-200ME: Wing pylons, arm. stub wings, MAD sting, 360º belly radar
 -- F.27-200ME demonstrator conv. from an existing earlier F.27 airframe
 - F.27 KingBird: [Project] 1984 AEW deriv., retr. 360º scan belly radar
 -- F.27 KingBird to have extensive onboard computer systems/op. stations
 - F.27 Sentinal: [Project] 1984 ELINT deriv. with SLAR and search radome
 - F.27 Black Crow: [Project] Surveillance/reconnaissance derivative

Fokker F28: 1967 twin-jet, T-tailled regional airliner, x 241
 - F28 : 2 x R-R RB183 Spey Junior, span 23.58 or 25.07 m
 - F28: [Project] Straight wing, thrust reversers
 - F28: Revised, swept wings, split-tailcone speedbrake
 - F28 Mk 1000: Short-bodied, 65 pax, span 23.58, x 97
 -- F28 Mk.1000: 2 x R-R RB183-555-15 Spey Junior
 - F28 Mk.1000C: Cargo/combi, 2.49 x 1.88 m  door, x 5
 - F28 Mk 2000: 1971 stetched (2.21 m) vers., 79-85 pax
 -- F28 Mk.2000: 2 x R-R RB183-555-15N Spey Junior, x 4
 - F28 Mk 3000: 1978 short-bodied/long-span vers., x 17
 -- F28 Mk.3000: 2 x R-R RB183-555-15H/-55P Spey Junior
 -- F28 Mk.3000 offered with 15-seat executive interior
 - F28 Mk.3000C : Cargo door vers. of Mk.3000, x 2
 - F28 Mk.3000R : Long-span w/ short-span perf. levels
 -- 'R' for Rekkend (Extended) ref. to longer-span wings
 - F28 Mk 3000RC: Cargo door-fitted F28 Mk.3000R vers.
 - F28 Mk.4000: 1976 improved F28 Mk.2000, 85 pax, x 112
 -- 2 x R-R RB183-555-15H/-15P Spey Junior, span 25.07 m
 - F28 Mk 5000: [Project] Slatted-wing vers. of F28 Mk.1000
 -- F28 Mk 5000 (and Mk.6000) for short runway operations
 - F28 COD*: [Project] Navalized Mk.5000 proposed to US Navy
 -- * COD =  Carrier Onboard Delivery
 - F28 Mk 6000: Slatted-wing variant of F28 Mk.2000, x 2**
 -- ** 1 x new-production, 1 x mod. of first prototype F28
 - F28 Mk 6600: [Project] Proposed NAMC YS-11 repl., 100 pax
 -- Mk 6600 for Japanese market was to have 2.21 m stretch
 - FH-228: [Project] Fairchild-Hiller deriv. of F28 Mk.1000
 -- FH-228: Short fuselage, 50 pax, 2 x 9,733 lbf R-R Trent
 - F.28-2 : [Project] 1977 enlarged F.28 study, led to 100
 -- F.28-2: 2 x 'improved' Rolls-Royce Spey 555 turbofans
 - Super F.28: [Project] 1977 Fokker-VFW studies
 -- Super F.28: Higher-capacity F.28 studies, led to 100
 -- P.(??) : 1977 study: 6-abreast, 2 x derated CFM56s
 -- P.(??) : 1978 study: 2 x 16,-18,000 lbf R-R RB.432s
 -- https://www.flightglobal.com/pdfarchive/view/1978/1978%20-%202096.html
 - F28 Mk.0700: see Fokker 70 entry (below)
 - F28 Mk.0100: see Fokker 100 entry (below)

Fokker F.29 - [Project] 1979 larger capacity airliner*
 - F.29: Low-winged, under-wing nacelles, with T-tail
 -- * Wider fuselage (3 + 3 seats), 132 to 150 pax.**
 -- ** Stretched version would accommodate 156 to 179
 - F.29: 2 x high-bypass turbofans, *** span 33.91 m
 -- *** 2 x R-R RB.432s or CFM International CFM56s
 -- https://www.flightglobal.com/pdfarchive/view/1979/1979%20-%204379.html

________________________________________________

Postwar Fokker Passenger-Numbered 'F' Series Airliners

Fokker 50 - 1985 F.27 stretch/modernization, 58 pax, x 213
 - Fokker 50 : Stretched, modernized successor to the F.28*
 -- * Fokker 'F.50' program announced 24 November 1983
 -- Marketing name, aka F27 Mark 050, aka Fokker 50-50
 - Fokker 50 : 2 x P&WC PW125B or PW127B, span 29.00 m
 -- 2 x 2,500 shp PW125B or 2,750 shp PW127B turboprops
 -- aka Fokker 50-100, some sources list 2,380 shp PW125B
 - Fokker 50 High Performance: 2 x 2,750 shp PW127B (as Fokker 60)
 - Fokker 50-200: [Project] 1989, 68 pax, stretched (3.0 + 1.5 m plugs)
 -- 50-200: 2 x 3,000 shp P&WC PW130, development cancelled 1991
 - Fokker 50-300: Hot-&-High variant, 2 x 2,750 shp P&WC PW127B**
 -- Some sources claim 2,500 shp PW127A (IIRC used only on ATRs)
 - Fokker 50-400: [Project] 1991, 68 pax, stretched 2.40 m
 -- 50-400: 2 x 2,750 shp P&WC PW127B, development cancelled

Fokker 50 Specialty Variants

 - Fokker 50U: Utility, KLu military transport variant, x 2
 -- Fokker 50U fitted with 1.30 x 1.65 m 'Multi-Purpose Door'
 -- aka F27 Mark 0502/Fokker 50-502, 2 x KLu, 2 x Brunei, 2 x Singapore
 -- https://planeslides.com/products/fokker-50u-u-06-netherlands-af-334sqdn-jan00
 - Fokker 50 Maritime Enforcer Mk.2, aka F50ME2, F50/ME2S, x 5
 -- MPA/surveillance variant, belly radar radome, pylons, searchlights
 -- Singapore F50ME2 aka Fokker 50-ENF, more advanced sensor suite
 -- https://www.secretprojects.co.uk/forum/index.php/topic,9542.msg200419.html#msg200419
 - Fokker 50 KingBird Mk.2 : 1994 AEW aerodynamic demonstrator
 -- KingBird Mk.2 was a conv'n of an ex-Maersk Fokker 50 airliner
 -- https://www.secretprojects.co.uk/forum/index.php/topic,9542.msg200130.html#msg200130
 - Fokker 50 KingBird Mk.2E: [Project] Dorsal-mounted ECM antenna**
 -- ** Ericsson Erieye antenna strut-mounted above rear fuselage***
 -- *** Offered to US Army/USMC w/ ASN-150 central tactical system
 -- 2v: https://www.flightglobal.com/pdfarchive/view/1992/1992%20-%201090.html
 - Fokker 50 Black Crow Mk.2: [Project] AEW variant, not built
 - Fokker 50 Sacred Crow: (??) , Wikipedia entry, Black Crow typo?
 - Fokker 50 Sentinel Mk.2: [Project] Recce/border patrol, not built
 -- Sentinel Mk.2 was to be fitted with Motorola side-looking radar
 - Fokker 50 Freighter: [Project] Conv. by Dublin-based JetIreland
 -- Conv. plans for STC discussed with Field Aviation Company Inc.
 -- Fokker 50 prod'n restart plan, May 1996, Hindustan Aeronautics

Fokker 60 - 1996 stretched (+ 1.62 m) Fokker 50 devel., x 4
 - Fokker 60 : 2 x 2,750 shp PW127B turboprops, span 29.00 m
 - Fokker 60 : 26.87 m long; stretch 1.02 m forward/0.80 m aft
 -- aka F27 Mark 0604, 'Fokker 60' was a marketing name
 - Fokker 60 : [Project] Civil variant, 60 pax std., 68 pax max
 - Fokker 60U: KLu cargo variant, aka Fokker 60UTA-N, x 4
 - Fokker 60MPA: 2005, 2 x Fokker 60U conv. for MPA ops*
 -- * Dutch West Indies use, due to P-3 Orion phase-out**
 -- ** Surplus Dutch Fokker 60MPAs sold to Peruvian Navy
 -- http://www.dutch-aviation.nl/index5/Military/index5-1%20F60.html

Fokker 70 - 1989 short-fuselage* 79 pax Fokker 100 variant
 -- Marketing name for Fokker F28 Mk.0700 (internal desig.)
 - Fokker 70: 2 x 13,850 lbf R-R Tay 620-15 turbofans, x 48
 -- * L 30.78 m, 4.62 m reduction, fwd & aft plugs removed
 - Rekkof F70NG: [Project] Fokker F70 update, 'sharklets'

Fokker 80 - [Project] 1990* F28 development, 77 pax variant
 - Fokker 80: 2 x R-R Tay or BMW-RR BR700 series turbofans
 -- * Date shows that Fokker 80 could not have lead to Fokker 70

Fokker 100 - 1986 F.28 devel./modern., 97-122 pax, x 283
 -- Marketing name for F28 Mark 0100, Tay 620-15 or 650-15
 - Fokker 100: Stretched, modernized successor to F.28*
 -- * Fokker 'F.100' program announced 24 November 1983
 - Fokker 100 : 2 x R-R Tay 620 or R-R Tay 650 turbofans
 - Fokker 100 QC: Quick Change conv., 11,500 kg, 88 pax
 -- https://www.secretprojects.co.uk/forum/index.php/topic,1430.msg100026.html#msg100026
 - Fokker 100: [Project] 1988, 3.55 m stretch, 120-130 seats
 -- 2 x 18,000 lbf R-R Tay 670 turbofans, 114,000 lb TOW
 -- https://www.flightglobal.com/FlightPDFArchive/1988/1988%20-%202609.PDF
 - Fokker 100 propfan: [Project] 1988, consid. distant plan*
 -- * As was FXX & Advanced Technology Regional Aircraft**
 -- ** aka ATRA-90, with Boeing, MBB, IPTN, and Fokker
 -- https://www.flightglobal.com/FlightPDFArchive/1988/1988%20-%201401.PDF
 - Fokker 100 combi: [Project] 2010 Phoenix Aero Solutions conv.
 -- Phoenix conv. incl. E-class system and LUD (Large Utility Door)
 -- aka Fokker 100 Freightship,*** prototype conv. underway 2011
 -- *** Name taken from all-cargo F.27 offered by Fokker in 1962
 - Rekkof 100NG : [Project] Updated, Fokker 100, 'sharklets'
 - Rekkof 100NXT: [Project] New wing design without winglets

Fokker F120 NG - [Project] Rekkof/NG Aircraft* 100 update
 - Fokker F120 NG: [Project] 122 pax F120 NG repl. by 130
 -- * aka Rekkof Restart NV, 'Rekkof ' is simply Fokker reversed

Fokker 130 - [Project] 1990 F28/Fokker 100 development, 137 pax
 - Fokker 130: 41.73 m total length (6.24 m stretch), span 31.08 m*
 - Fokker 130: 2 x R-R Tay or BMW-RR BR700 series turbofans
 -- * Span extended with 1.50 m root plugs, added cabin doors
 - Fokker 130 NH: 2016 NAC update, 2 x 16,440 lbf P&W PW1217Gs
 -- 2013 conv'n from orig. Fokker 100 airframe, to fly 2020
 -- https://www.ngaircraft.com/#aircraft


____________________________________________

Fokker Transport/Airliner Ontwerpen

In some of the 'F' Designation entries above, Project or Ontwerp numbers are mentioned. Below is a listing of Fokker transport and airliner projects listed by their Ontwerp numbers.

Note: Many Fokker project drawings and other details were lost to WW2 bombing. As a result, some Ontwerp numbers are 'undefined' - some may well be commercial transport concepts but, barring more information, they cannot be safely listed as such here.

Ontwerp 104 (A) - [Project] 1934 Twin-engined 16 pax airliner
 - 104 (A): 2 x 700 hp Wright Cyclone F2 radials, retractable u/c
 -- Mixed constr. high wooden wing, metal fuselage), span 25.60 m

Ontwerp 105 (A) - [Project] 1934 twin-engined 16 pax airliner
 - 105 (A): 2 x 700 hp Jumo 4 diesel engines, retr, u/c, span 25.60 m
 -- Ontwerp 105 (A) layout and mixed constr'n as per Ontwerp 104 (A)

Ontwerp 106 - [Project] 1934 twin-engined 16 pax airliner concept
 - 106: 2 x 700 hp Jumo 4 diesel engines, retr, u/c, span 27.00 m
 -- Low-winged, mixed constr'n as per Ontwerp 104 (A) and 105 (A)

Ontwerp 107 - [Project] 1934 twin-engined 16 pax airliner concept
 - 107: 2 x 700 hp Jumo 4 diesel engines, retr, u/c, span 27.00 m
 -- High-winged Ontwerp 107 was slightly scaled-up Ontwerp 105 (A)

Ontwerp 108 - [Project] 1934 twin-engined 16 pax airliner concept
 - 108: 2 x 720 hp Jumo 4 diesel engines, retr, u/c, span 27.00 m
 -- Ontwerp 108 as Ontwerp 107 except higher-powered engines*
 -- Some sources say Ontwerp 108 had pusher props (107 too?)

Ontwerp 116 - [Project] 1934 twin-engined airliner, likely 12 pax
 - Ontwerp 116: 2 x 700 hp Wright Cyclone F2, no drawing known

Ontwerp 117 - [Project] 1934 twin-engined airliner, likely 16 pax
 - Ontwerp 116: 2 x 700 hp Wright Cyclone F2, span 25.40 m

Ontwerp 118 - [Project] 1934 F.VIII with P&W Wasps radials on wing

Ontwerp 121 - [Project] 1935 twin-engined 'sleeper' airliner for ABA

Ontwerp 127 - [Project] 1935 4-engined, double-deck airliner, 28-56 pax
 - Ontwerp 127: Mixed constr., for European & NEI routes, redesig. F.56
 -- Ontwerp 127 also projected as troop transport (70-84) and as bomber
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg86732.html#msg86732

Ontwerp 128 - [Project] 1936 twin-engined low-winged airliner
 - 128: Planned rival to US Lockheed Model 10 Electra, 10 pax

Ontwerp 130 (2) - [Project] 1936 twin-engined, twin-tail mailplane
 - 130 (2nd): Resembled a reduced-scale Ontwerp 122A night bomber
 -- First Ontwerp 130 project was for a twin-engined bomber

Ontwerp 132 - [Project] 1936 4-engined airliner, span 38.00 m
 - 132: 4 x Wright Cyclone radials, 20-24 pax, mixed construction*
 -- * Wood wing/central fuselage, dural monocoque front/rear fuselage
 -- * Tail surfaces of duralumin and cloth-covered chromolybdenum tube
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164807.html#msg164807

Ontwerp 133 - [Project] 1936 4-engined airliner, pressurized cabin
 - Ontwerp 133: 4 x (??), 20 pax, span 40.00 m, all-metal constr'n

Ontwerp 136 - [Project] 1937 4-engined airliner, pressur. cabin
 - Ontwerp 136: 24 passengers, span 38.00 m, poss. mixed constr.
 -- Ontwerp 136 may have been related to the 20 pax Ontwerp 133

Ontwerp 137 - [Project] 1937 twin-engined, 8 pax light airliner
 - Ontwerp 137: Mixed construction, no other details

Ontwerp 138 - [Project] 1937 twin-engined transport, 10 pax/cargo
 - 138: Frits Diepen concept, coupled engines driving 1 x prop*
 -- * Other sources say enlarged G.1A for LVa, 2 x Mercury VIIIs

Ontwerp 139 - [Project] 1937 twin-boomed airliner, nosewheel u/c
 - 139: 10 pax, 2 x coupled engines (each driving a single prop)

Ontwerp 140 - [Project] 1937 twin-boomed airliner, nosewheel u/c
 - 139: 9 pax, 2 x coupled engines, smaller fuse. than Ontwerp 139

Ontwerp 141 - [Project] 1937 twin-engines airliner/transport a/c
 - 141: Mixed construction, eight passengers

Ontwerp 138 - [Project] 1937 twin-engined 10-pax transport *
 - 138: Coupled engines driving one propeller through gearbox
 -- * According to Frits Gerdessen, others say G.1A for LVA

Ontwerp 139 - [Project] 1937 twin-boomed 10-passenger airliner
 - 139: 2 x pairs of coupled engines, nose wheel undercarriage

Ontwerp 140 - [Project] 1937 twin-boomed 9-passenger airliner*
 - 140: 2 x pairs of coupled engines, nose wheel undercarriage
 -- * Ontwerp 140 had a smaller fuselage than Ontwerp 139

Ontwerp 141 - [Project] 1937 twin-engine "aanbrengingsvliegtuig"*
 -- * 'Application a/c' (? utility type ?), mixed construction

Ontwerp 144 - [Project] 1937 high-wing, twin-engined airliner, 10 pax
 - 144: Mixed constr., wooden wing, metal fuselage, nose wheel u/c
 -- Ontwerp 144 viewed as Fokker competitor to US Lockheed Model 14

Ontwerp 145 - [Project] 1937 high-wing, twin-engined airliner, 8 pax
 - 145: Mixed constr., wooden wing, metal fuselage, nose wheel u/c
 -- Ontwerp 145 alt. to Ontwerp 144 as Lockheed Model 14 competitor

Ontwerp 147 - [Project] 1937 low-wing, twin-boomed 4-seat light a/c
 - 147: Wooden wing, fixed tricycle u/c, inline 6-cyl w/ pusher prop
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164807.html#msg164807

Ontwerp 148 - [Project] Twin-boomed* 4-6 seat tourer by J.E. van Tijen
 -- * Various configurations/outlines sketched for Ontwerp 148 design

Ontwerp 158 - [Project] 1938 4-engined, 24-passenger airliner
 - 158: 4 x engines (unspecified type), tricycle u/c, span 40.00 m

Ontwerp 159 - [Project] 1938 4-engined, 48-passenger airliner
 - 158: 4 x engines (unspecified type), tricycle u/c, span 44.00 m
 -- 159: Pressurized cabin, 48 pax diurnal/24 pax 'sleeper' config.

Ontwerp 160 - [Project] 1938 pressurized Burnelli type* 'Intercontinental'
 -- * Twin-boomed, lifting-body arrangement, tricycle u/c, span 48 m
 - 160: Airliner variant, 5 x DB DB600H, 26 passengers, aka Fokker F.40
 - 160: Bomber variant, air-cooled engines, 4,536 kg bombload (4 bays)
 -- Ontwerp 160 variants projected with up to nine engines
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,17174.msg164807.html#msg164807
 -- Drw: https://www.secretprojects.co.uk/forum/index.php/topic,2740.msg86734.html#msg86734

Ontwerp 160a - [Project] 1938 large six-engined airliner, span 53.3 m
 - 160a: Introduced detachable, twin-engined 'hulpvliegtuig' concept*
 -- * A self-powered, air-releaseable and recoverable landing gear **
 -- ** Fokker's expansion upon 1938 patent by KLM director A. Plesman
 -- Upon arrival, another 'hulpvliegtuig' set to fly up to hook-attach

Ontwerp 167 - [Project] 1938 4-engined, pressurized 12 pax airliner

Ontwerp 170 - [Project] 1939 trimotor pressurized cabin airliner
 - 170: 16 pax, high-wing with nose wheel u/c, span 35.00 m

Ontwerp 171 - [Project] 1939 trimotor pressurized cabin airliner
 - 171: 24 pax, high-wing with nose wheel u/c, span 41.00 m
 -- Also proposed as transport (36-60 troops)/bomber (3,000 kg)

Ontwerp 173 - [Project] 1939 large 4-engined, 24 pax airliner
 - 173: Pressurized cabin, twin tandem engines, span 41.00 m

Ontwerp 175 - [Project] 1939 twin-engined, high-winged airliner
 - 175:  18 pax, nose-wheel u/c, to use T.9 wing & tail surfaces
 -- See also Ontwerp 166 military transport based on T.9 (above)

Ontwerp 176 - [Project] 1939 trimotor pressurized cabin airliner
 - 176: 8 pax in press. cabin, high-wing, nose gear, span (??) m

Ontwerp 177 - [Project] 1939 trimotor pressurized cabin airliner
 - 177: Assumed to be trimotor version of 18 pax Ontwerp 175*
 -- * Used same wing as Ontwerp 175 (ie; T.9), no drawing known

Ontwerp 178 - [Project] 1939 large four-engine* 16 pax airliner
 - 178: 16 pax in pressurized cabin, nose wheel. Wingspan 34 m
 -- * Tandem pairs of engines (planned engine type unknown)

Ontwerp 180 - [Project] 1939-1944 "Intercontinental" airliner
 - 180: Twin-boomed lifting-body similar to 1938 Ontwerp 160
 -- 4-or-5 Junkers Jumo 211 Ba  or radials, span 48-65 m*
 -- * Various design concepts, incl. pusher between booms

Ontwerp 181 - [Project] 1939-1944 "Intercontinental" airliner
 - 181: Lifting-body twin-boomed a/c similar to  Ontwerp 180
 -- 3 x engines, accommodation in wing, nose wheel, span 48.00 m

Ontwerp 182 - [Project] 1939-1944 "Intercontinental" airliner
 - 181: 26 pax lifting-body twin-boomed a/c similar to 180/181
 -- 4 x push-pull engines, wing accom., nose wheel, span 48.00 m

Ontwerp 191 - [Project] 19(??) 4-engined, high winged airliner
 - 191: 24 passengers, nose wheel undercarriage

Ontwerp 193 - [Project] 19(??) twin-engined, high winged airliner
 - 193: As Ontwerp 191 but twin-engined, ordered as Fokker F.24

Ontwerp 200 - [Project] 1940 four-engined 24 pax airliner concept
 - 200: Lighter devel. of Ontwerp 180, pressure cabin

Ontwerp 205 - [Project] 1944 twin-deck four-engined airliner
 - 205: For postwar NEI route, 40 pax, span 49.00 m or 51.30 m

Ontwerp 205 - [Project] 1944 twin-deck four-engined airliner
 - 205: For postwar NEI route, 39 pax, span 44.00 m

Ontwerp 207 - [Project] 1944 4-engined, twin-boomed KLM cargo a/c
 - 207: 4 x (??) hp (engines unknown), 5 tons freight, span 46.50 m

Ontwerp 208 - [Project] 1944 twin-engined, twin-boomed KLM cargo a/c
 - 208: 2 x (??) hp (engines unknown), 12 tons freight, span 65.70 m

Ontwerp 209 - [Project] 1944 twin-engined, twin-boomed KLM cargo a/c
 - 208: 2 x (??) hp, 4 x freight pods mounted under wings, span 65.50 m

Ontwerp 210 - [Project] 1944 twin-deck four-engined airliner concept
 - 210: For postwar NEI route, impr. Ontwerp 205, 40 pax, span 49.00 m
 -- 210 also mentioned as 54.4 T lifting body airliner, span 72.50 m

Ontwerp 275 - [Project] 1950 high-winged 32-seat airliner concept
 - 275: Fully-developed Ontwerp 275 re-designated as Fokker F.27

Ontwerp 335 - [Project] 1980s F.27 devel., becomes Fokker 50

« Last Edit: April 13, 2018, 01:55:04 pm by Apophenia »

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #8 on: April 11, 2018, 04:29:01 pm »
Apologies folks ... I've run out of time at the computer lab  :'(.  I'll be back here on Friday to clean up my previous post and to add posts for the S-serie and T-serie

Update: I've posted the S-serie and T-serie listings and will clean up my last three posts when time permits tomorrow.

hesham: Thanks for the 'M' series additions ... I'll add them to the list tomorrow
« Last Edit: April 12, 2018, 10:56:51 am by Apophenia »

Offline hesham

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #9 on: April 11, 2018, 05:23:28 pm »
Amazing Amazing work my dear Apophenia.

Offline hesham

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #10 on: April 12, 2018, 08:14:31 am »
My dear Apophenia,

M-11   was a recce training biplane of 1915,maybe remained a Project,powered by one U.1 engine.

M-12   was a recce sesquiplane prototype of 1915,powered by  one Mercedes engine.

For M-23 & M-24,please see;
https://www.secretprojects.co.uk/forum/index.php/topic,22511.msg299075.html#msg299075

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #11 on: April 12, 2018, 10:52:07 am »
Fokker S-serie Lesvliegtuigen - Training Aircraft

Anthony Fokker brought German Idflieg-style role designation letters to the Netherlands in 1919 ... but 'S' was not an Idflieg designator. Fokker added the S-serie once he had arrived in Amsterdam. Which leaves something of a puzzle as to what 'S' stood for.

Perhaps, with his retention of so many German designator letters, AHG Fokker chose to go with 'S' for 'Schulflugzeug'. Less likely, 'S' may have stood for 'schoolvliegtuigen' - despite common use in Dutch of 'lesvliegtuigen' ('Lesson plane') for training aircraft.

In any case, the Fokker S-serie sequence runs from the S.I of 1919 to the unbuilt S.16 project of 1954. I can find no mention of an 'S.17' designation. [1] From the  S.I, 'S' designations progress chronologically using Roman numerals until the unbuilt S.VIII project of 1936. In the Fokker designation style shift of the late 1930s, the next two designs became the S.9 and unbuilt S.10.

In the popular press, the Roman numeral style was continued for Fokker designs. So, for continuity (and familiarity), I have listed the S.9 as S.IX the S.10 for the 1939 S.X project. [2] Here, the Arabic numeral style is adopted strictly for postwar Fokker 'S' designations - running from the 1947 S.11 Instructor to the unbuilt 1954 S.16 project.

A small number of Fokker design concepts for trainers never progressed far enough to be given S-serie designations. Assigned Ontwerpen numbers, these immature concepts are listed directly below the 'S' designation listings.

____________________________________________________________________

[1] Online searches will bring up 'S-17' but that was an individual aircraft code for one of the MLD's 19 S.III trainers.

[2] There are cryptic mentions of a 1939-1940 Fokker S.XI project. I assume this to be a typo for S.IX (S.9).
____________________________________________________________________


Fokker S-serie Training Aircraft Designations

Fokker S.I - 1919 2-seat primary trainer monoplane, x 4
 - S.I: Side-by-side seating, Schwerin-built prototype*
 -- * Orig. V.43 powered by 1 x 75 hp Mercedes 6-cylinder
 -- V.43: Designed by Reinhold Platz, side-by-side seats
 - S.I: 1 x 80 hp Le Rhône, span 12.71 m, x 2 (to USSR)
 -- TW-4: USAAS desig., 1 x 90 hp Curtiss OX-5, x 1**
 -- ** s/n 68576, tested by McCook Field Eng. Division
 -- http://www.airwar.ru/image/idop/other1/foks1/foks1-1.jpg
 -- http://1000aircraftphotos.com/Contributions/HornDavid/9428L.jpg

Fokker S.II - 1922* 2-seat primary trainer biplane, x 17
 - S.II : Side-by-side seating trainer for Neth. LVA
 -- * According to Frits Gerdessen, first flight 1923
 - S.II : 1 x 90 hp Oberursel UR.I,** span 11.01 m***
 -- ** Orig. flown with 110 hp Swedish Thulin rotary
 -- ** Some sources identify engine type as Le Rhône
 -- *** Some sources show S.II upper span as 11.22 m
 -- 3v: http://www.hollandaircraft.nl/F35_Fokker_SII.pdf
 - S.IIA: Ambulance conv'n (w/ transparent litter cover)
 - S.IIA: 1 x 218 hp Armstrong-Siddeley Lynx radial, x 1
 - S.II : Soviet V-VS trainer (no other details)
 -- S.II cockpit: http://c8.alamy.com/comp/D402FK/fokker-sii-D402FK.jpg
 -- S.IIA: https://www.flickr.com/photos/skylarkair/9922390283/sizes/l
 -- S.IIA: http://aviadejavu.ru/Images6/MM/MM-136/1012-59-2-1.jpg

Fokker S.III - 1922 2-seat primary trainer biplane, x 21*
 -- MLD (Marine Luchtvaartdienst): 18 x Spijker V.2 repl.
 - S.III: 1 x 180 hp Hispano-Suiza 8Ab V-8, span 10.67 m
 -- Denmark: (Hærens Flyveskole) 2 x 'skolefly', 1924-27
 -- aka Fokker S.III (Denemarken); Dan. desig. also S.III
 -- http://flymuseum.dk/foto/forsvaretsfly/FokkerSIII.jpg
 - S.III: 1 x 120 hp Mercedes D.II 6-cyl., span 10.67 m
 -- S.III c/n 4523 exported 1925 for Aero Club Argentino
 -- Atlantic Model 2 (aka Fokker S-3) exported to US, x 1
 - S-3 (Atlantic) 1 x 180 hp Wright-Hisso E,** span 10.67 m
 -- * NB: 22 if incl. MLD S-19 assembled from spare parts
 -- ** Multiple re-enginings: 90 hp Curtiss OX-5 V-8; then
 -- OX-5: http://aviadejavu.ru/Images6/FT/FT1923/12/770-1.jpg
 -- ** 150 hp Hisso A; 200 hp Wright J-4; 220 hp Wright J-5
 -- http://images.memorix.nl/nda/thumb/620x620/20d7bd7d-2a9a-1bd2-b3da-cc6c00334116.jpg
 -- http://www.dutch-aviation.nl/pictures/Fokker/Military/Fokker%20S3%20linkerzijde.jpg
 -- http://flymuseum.dk/foto/forsvaretsfly/FokkerSIII.jpg
 -- http://aerofiles.com/fokker-s3.jpg

Fokker S.IV - 1924 2-seat primary trainer biplane, x 31
 - S.IV: Tandem seats, rotary/radial engine, span 11.70 m
 - S.IV: Initial, 1 x 90 hp Oberursel UR.I 9-cyl. rotary
 - S.IV: 1926 re-engined, 1 x 110 hp AS Mongoose radial
 -- S.IV options: Clerget, Siemens Sh.12, Bristol Lucifer, AS Puma
 - S.IV-W: [Project] 1924 floatplane trainer (drijverversie)
 -- Lucifer: http://aviadejavu.ru/Images6/FT/FT1926/10/771-1.jpg
 -- http://www.airwar.ru/image/idop/other1/foks4/foks4-1.jpg
 -- http://obchod.valka.cz/images/products_big/747/ome72348.jpg?c=1487446263

Fokker S.V - [Project] 1929 advanced trainer/recce* biplane
 - S.V: 1 x (??) hp Wright Whirlwind radial, span (??) m
 -- * Dutch: Overgangslesvliegtuig en lichte verkenner

Fokker S.VI - [Project] 1933 2-seat tandem biplane trainer
 - S.VI: 1 x 130 hp DH Gipsy Major 4-cyl, span 9.70 m
 -- Intended as an improved (?? deriv. ??) successor to S.IV
 -- http://www.secretprojects.co.uk/forum/index.php/topic,28594.msg300449.html#msg300449

Fokker S.VII - [Project] 1933 2-seat, twin-engined trainer
 - S.VII: 2 x 85 hp Pobjoy 7-cyl radials,* span 7.50 m
 -- * Likely Pobjoy R (Pobjoy Niagara arrived in 1934)
 -- https://www.secretprojects.co.uk/forum/index.php/topic,28594.msg300449.html#msg300449

Fokker S.VIII - [Project] 1936 2-seat biplane trainer
 - S.VIII: 1 x Hirth 4-cyl or Pobjoy radial, span 7.50 m
 -- http://www.secretprojects.co.uk/forum/index.php/topic,28594.msg300449.html#msg300449

Fokker S.IX -  1937 2-seat primary trainer biplane, x ~50
 - S.IX/1: LVa S.IV repl., x 20 (+20 not deliv'd), aka S.9
 - S.IX/1: 1 x 165 hp AS Genet Major IA,* span 9.50 m
 -- * 1st 12 + 2 post-war,** rest Kromhout-built engines
 -- ** Built by/for Frits Diepen Vliegtuigen NV, Ypenburg
 - S.IX/2: 1 x 160 hp Menasco B6 Buccaneer inverted 6-cyl.
 -- S.IX/2 was MLD Fokker S.III repl., x 27 (cut to x 15)
 -- http://1000aircraftphotos.com/Contributions/Visschedijk/2580L.jpg
 -- http://img.wp.scn.ru/camms/ar/1630/pics/92_1.jpg

Fokker S.X - [Project] 1939 2-seat biplane trainer
 - S.X: 1 x 140 hp Armstrong-Siddeley Genet Major
 -- aka S.10 in late 1930s Fokker designation style

Fokker S.XI - (??) 1939-1940 (no details) S.IX typo?
 - S.XI : Duplicates postwar S.11 desig., likely typo
 -- http://www.studiegroepluchtoorlog.nl/airwar-encyclopedia/aircraft-types/fokker-s-xi/

Fokker S.11 - 1947 2-3 seat tandem ab intio trainer, x 360+
 - S.11: Instructor, 'taildragger' low-wing monoplane
 - Ontwerp 223: [Project] Init. S-11 concept, DH Gipsy
 - S.11: 1 x 190 hp Lycoming O-435A, span 11.00 m
 -- S-11-1 : Koninklijke Luchtmacht batch, x 40
 -- Batch desig. also rendered as S.11.1, S.11-1, S-11.1
 -- S.11-2 : Israeli Defense Force batch, x 41
 -- S.11-3 : 2-seat trainer, evolves into Fokker S.15
 -- S.11-4 : T-21, Força Aérea Brasileira batch, x 100
 -- S.11-4/T-21 led to tricycle-geared S.12-3/T.22
 - Macchi M.416: 1951 Italian licensed prod'n, x 180*
 -- Ital. source, other sources say 150 M.416 built
 -- https://www.flightglobal.com/pdfarchive/view/1948/1948%20-%201805.html
 -- http://www.pbase.com/te_linde/image/158088789
 -- 3v: http://www.greenairdesigns.com/ejcgallery/albums/userpics/10002/fokker_s11_3v.jpg

Fokker S.12 - 1948-49 2-seat tandem ab intio/basic trainer
 - S.12: Tricycle-geared S.11 variant, 1 x prototype
 - S.12: 1 x 190 hp Lycoming O-435A, span 11.00 m
 -- http://cdn-www.airliners.net/photos/airliners/3/6/4/1527463.jpg?v=v40
 - T-22 : Instructor, Força Aérea Brasileira, x 50**
 - ** Built in Brazil by Fokker Industria Aeronautica
 -- http://1000aircraftphotos.com/Contributions/VanTilborg/2126L.jpg
 -- S-12-1 : (??) poss. Dutch prototype
 -- S-12-2 : Força Aérea Brasileira batch
 -- S-12-3 : [Project] 260 hp Lycoming GO-435, aka S.15
 - YT-22: IPD FG-8 Guanabara, 4-seat deriv, retr. u/c
 -- 1 x 250 hp Lycoming O-540-A1A, wingtip tanks, x 15
 -- http://1000aircraftphotos.com/Contributions/Visschedijk/7322L.jpg
 - IPT IPT-10 Junior: 3-seat deriv., 1 x 100 hp O-235 4-cyl

Fokker S.13 - 1950 twin-engined military crew trainer, x 1
 - S.13: 2 x 600 hp P&W Wasp S1H1-G radials, span 19.20 m
 - S.13: Universal Trainer, multi-engine, nav, para, radio
 -- Sole S.13 (PH-NEI/D-101/PH-NEI) used for photo-recce
 - S.13W: [Project] Planned twin-float seaplane variant
 -- https://www.flightglobal.com/pdfarchive/view/1948/1948%20-%201805.html
 -- http://www.dutch-aviation.nl/index5/Military/index5-1%20S13.html
 -- http://www.secretprojects.co.uk/forum/index.php?topic=19544.0

Fokker S.14 - 1951 Machtrainer 2-seat jet trainer, x 21
 - S.14: Machtrainer side-by-side seating jet trainer
 - S.14: 1 x 3,452 lbf R-R Derwent 8, span 12.00 m
 -- Ontwerp 204J: Jet-trainer study with tandem seats
 -- Ontwerp 240K: Side-by-side study, leads to S.14
 - S.14: 1st prototype (PH-NDY), 1 x R-R Derwent V
 -- Oct 1953, prototype re-eng., 5,100 lbf Nene III
 - S.14: Machtrainer, x 20 for KLu, Derwent 8, x 20
 - S.14: [Project] R-R Nene-powered for FAB, x 50*
 -- * Components for 5 deliv. + 45 built in Brazil
 - S.14: [Project] 1952 Fairchild license, lapsed**
 -- ** No USAF contr., S.14 crashed at Fairchild site
 -- (Test pilot Gerben Sonderman killed in this crash)
 -- https://www.flightglobal.com/pdfarchive/view/1954/1954%20-%200146.html
 -- https://farm9.staticflickr.com/8057/8187811579_31c012e9b1_b.jpg
 -- Ontwerp 265: [Project] R-R Nene I, light attack deriv.
 -- http://www.secretprojects.co.uk/forum/index.php/topic,1416.msg299009.html#msg299009
 -- Ontwerp 340: [Project] Poss. jet trainer derived from S.14

Fokker S.15 - [Project] 195? 2-seat trainer, aka S-12-3
 - S.15: 1 x 260 hp Lycoming GO-435-C2, S.12 development
 -- http://www.secretprojects.co.uk/forum/index.php/topic,1416.msg11742.html#msg11742

Fokker S.16 - [Project] 1954 2-seat military jet trainer
 - S.16: Redesig. Ontwerp 280.32, side-by-side seating
 -- http://www.secretprojects.co.uk/forum/index.php/topic,1416.msg299391.html#msg299391

____________________________________________________________________

Ontwerpen Numbers for Fokker Training Aircraft Projects

Ontwerp 149 - [Project] 1937 twin-engined transitional trainer
 - 149: All-metal constr. ML/KNIL crew trainer/light bomber

Ontwerp 153 - [Project] 1938 twin-engined transitional trainer
 - 153: Mixed const. crew trainer/light bomber for ML/KNIL*
 -- Ontwerp 153 was lower-cost alternative for the Ontwerp 149
 -- * Some sources list Ontwerp 153 as a late luchtkruiser type

Ontwerp 197 - [Project] 1939 single-engined 2-seat trainer*
 - 197: 1 x 450 hp Wright Whirlwind J-6 radial, span 11.00 m
 -- * Also sport and light recce roles, based on D.XXI parts
 -- Sept 1939 AA Gassner design as Koolhoven FK-56 competitor

Ontwerp 238 - [Project] S.14 alternative, AS Mamba turboprop

Ontwerp 239 - [Project] Prelim. study leading towards S.14

Ontwerp 240 - [Project] Prelim. study, twin-boom fuselage

Ontwerp 265 - [Project] Jet trainer/light ground attack aircraft
 - 265: Based on Fokker S.14 Machtrainer, 1 x R-R Nene I turbojet

____________________________________________________________________
« Last Edit: April 13, 2018, 02:00:38 pm by Apophenia »

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #12 on: April 12, 2018, 10:54:06 am »
Fokker 'T' Series Torpedo and Bomber Designations - 1920-1939

Although Anthony Fokker brought German Idflieg-style role designation letters to the Netherlands in 1919, he quickly found that additional role letters needed to be added. One such addition was 'T' for Torpedovliegtuigen (Torpedo Aircraft). [1] Early 'T' types were all torpedo-bombers and reconaissance-bombers. So, 'T' came to stand for both bommenwerpers en torpedovliegtuigen.

Continuing to use the T-serie for land-based bombers - most incapable of carrying a torpedo - may seem odd. A shift to 'B' designations would have made sense ... but, in the Fokker designation system, the 'B' was for 'Boot' or flying boat. With the B-serie thus spoken for, Fokker stuck to its T-serie for bombers - even torpedoless 'land-lubbers'.

The Fokker T-serie began with the 1920 T.I - an unbuilt torpedo floatplane - and ends with another unbuilt project - T.10W of 1938-39. As shown by these examples, Fokker shifted its designation style in the mid-1930s. Due to popular usage, I have listed designs up to the 1939 T.IX using Roman numerals with Arabic numerals in 'also known as' secondary positions.

Prior to listing the T-serie designations, the early lettered Ontwerpen and named types will be listed immediately below.

____________________________________________

[1] In Dutch, torpedovliegtuigen - or more specifically torpedo-watervliegtuig for float-equipped types - would be used. However, as in the case of the S-serie, the T-serie could just as easily refer to the German torpedoflugzeug.

____________________________________________


Fokker Bomber-related Ontwerpen - circa 1920-1925

Ontwerp B - [Project] Single-engined low-winged bomber
 - Ontwerp B: Resembled a reduced-scale T.III

F.T. - T.II as delivered to the US Navy (as FT-1)

F.T.2 - [Project] T.II development

F.W. - [Project] Single-engined 6-pax airliner on twin floats
 - aka W.II, derived initially from T.II, later T.III airframe

F.W.3 - [Project] T.III intended for Portugal

Ontwerpen met een naam - Named Bomber-related Fokker Ontwerpen

"Fokker Bombing Airplane" - Military variant of F.IV transport

"Special seaplane for long distance" - Enlarged T.II concept

____________________________________________


Fokker T-serie Torpedo and Bomber Aircraft Designations

Fokker T.I - [Project] 1920 Torpedo-bomber floatplane
 - T.I : Engine type other than a Liberty, no other details

Fokker T.II - 1921 2-seat low-winged torpedo-bomber floatplane
 - T.II: 1 x 400 hp Packard Liberty 12-A V-12, span 19.83 m
 -- 1921 T.II prototype orig. w/ ~1.00m-longer fuselage, x 1
 - FT-1: 1922 US Navy desig. for 3 x T.II (incl. prototype)*
 - FT-2: Mod. A6010, poss. for 22 Jan 1922 USN Honor Flight
 -- BuAer serials: A6008, A6009, A6010 (1927 civilian NC5763)
 -- * US Navy's evaluation designation 'FT' = Fokker Torpedo
 -- Comparative trials Oct 1922-March 1923 at NAS Anacostia
 -- T.II-W: Likely a retroactive designation for the T.II
 -- http://airwar.ru/image/idop/bww1/fokt2/fokt2-1.jpg
 -- ER Johnson claims FT-1 was an F.IV cabin monoplane deriv.

Fokker T.III - 1923 3-seat low-winged torpedo-bomber floatplane
 - T.III-W: 1 x 450 hp Napier Lion XI W-12,* span 21.20 m, x 5
 - T.III-W: Slightly enlarged T.II for Portugal's Aviação Naval
 -- Portugal intended around-the-world flight, later cancelled
 -- * Offered with optional 360 hp Rolls-Royce Eagle IX V-12
 - T.III : Original prototype flown with wheeled landing gear
 - T.III-W: Production type fitted with twin float undercarriage
 - F.III-F: [Project] 1923 airliner, T.III-W w/ cabin, aka W.II

Fokker T.IV-W - [Project] 1923 single-engine, low-winged seaplane
 - T.IV-W (1): Provisional design for light military floatplane

Fokker T.IV-W - [Project] 1923 twin-enginee, low-winged seaplane
 - T.IV-W (2): Provisional design for medium military floatplane
 -- T.IV-W (2) seems to have been a twin-engined T.III deriv.

Fokker T.IV - 1927 twin-engined floatplane torpedo-bomber, x 24
 - T.IV (3): To 1926 MLD requirement for long-range scout/bomber
 - T.IV (3): 2 x 450 hp Lorraine 12E Courlis W-12, span 26.20 m
 -- T.IV: T-1 delivered in 1927; T-2-T-12 delivered 1928-1930
 -- http://airwar.ru/image/idop/bww1/fokt4/fokt4-4.jpg
 -- https://www.flightglobal.com/FlightPDFArchive/1928/1928%20-%200049.PDF
 -- https://www.flightglobal.com/FlightPDFArchive/1928/1928%20-%200050.PDF
 - T.IVa: Updated variant w/ radials, encl. cockpit & turrets*
 -- * NB: 1st T.IVa, T-13, orig. flown with open gun positions
 - T.IVa: 2 x 750 hp Wright Cyclone  SR-1820-F2, span 26.20 m
 -- T.IV T-1 delivered in 1927; T-2-T-12 delivered 1928-1930
 -- Surviving T.IVs were upgraded/re-engined to T.IVa standard
 -- http://airwar.ru/image/idop/bww1/fokt4/fokt4-7.jpg
 -- T.IVa: T-13-T-17 in 1936; T-19-T-22 1937; T-23-T-24 1938
 - T.IV W: [Project] 'W' for Wright, orig. desig. for T.IVa
 - T.IV-L: [Project] Various concepts for T.IV with land u/c
 -- https://www.ipms.nl/artikelen/nedmil-luchtvaart/vliegtuigen-f/vliegtuigen-f-fokker-t4/1389-vliegtuigen-f-fokker-t4-4.html

Fokker T.V - [Project] 1934 2-engine monoplane luchtkruiser/bomber
 - T.V (1934): Ontwerp 111, luchtkruiser designed to LVA spec.
 - T.V (1934): 2 x liquid-cooled engines, retr. u/c incl. tailwheel
 -- Luchtkruiser/bomber T.V had nose, dorsal, ventral gun positions

Fokker T.V 122 - [Project] 1935 twin-engined monoplane medium bomber
 - T.V (1935): Enlarged LVA T.V. design w/ features of Ontwerp 122*
 -- Ontwerp 122 medium bomber for Finland derived from Ontwerp 111
 - T.V-A: [Project] 1937 T.V with alternative engines, aka T.Va

Fokker T.V - 1937 twin-engined, mid-winged medium bomber, x 16
 - T.V : 2 x 925 hp Bristol Pegasus XXVI radials, span 12.00 m
 -- T.V was 5-man medium bomber deriv. from Ontwerp 122/T.V 122
 - T.V: 1,000 kg bombs, 1 x 20 mm + 5 x mg defensive armament*
 -- * 1 x 20 mm Solothurn S-18/100 + 5 x 7.9 mm FN Browning mgs

Fokker T.VI - [Project] 1934 4-engine, low-wing heavy bomber
 - T.VI (1): 4 x radial engines, span 33.00 m, used F.36 wing
 -- T.VI: Twin-gun nose & dorsal turrets + belly gun position
 -- Ontwerp 115/T.VI (1) for Czechoslovakia, Turkey, & Russia
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg69137.html#msg69137

Fokker T.VI - [Project] 1937 twin-engined medium bomber
 - T.VI (2): Twin-boomed G.1 deriv.,* 2 x Bristol Hercules
 - T.VI (2): aka T.6 and Ontwerp 152, eclipsed by T.IX/T.9
 -- *  By compar'n, T.VI had enlarged nacelle + nose position
 -- T.VI (2) design intended as successor to LVA's T.V bomber
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg173431.html#msg173431

Fokker T.VII - [Project] 1935 twin-engined medium bomber
 - T.VII (1): Orig. Ontwerp 122, leads to T.V 122 project*
 -- * Ontwerp 122/T.V 122 emerges as LVA Fokker T.V bomber
 -- T.V began as luchtkruiser, hence a later desig. number

Fokker T.VII-W - [Project] 1935 enlarged T.V twin-float seaplane
 - T.VII-W: aka T.7W, multiple design concepts for MLD floatplane
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg164804.html#msg164804

Fokker T.VIII-W - 1939 twin-engined twin-float torpedo bomber
 - T.VIII-W: aka T.8W, built in two sizes with 2 x engine types
 -- Begun as Ontwerp 134, T.8W/T.VIII-W first flew 22 Jan 1939
 - T.VIII-W/G: Retroactive desig., 3-seat MLD floatplane, x 19
 - T.VIII-W/G: 2 x 450 hp Wright R-975-E3 radials, span 18.00 m
 -- T.VIII-W/G distinguished by a fabric-covered rear fuselage
 - T.VIII-W/M: T.VIII-W devel. w/ semi-monocoque rear fuselage
 - T.VIII-W/M: 2 x 450 hp Wright R-975E-3, span 18.00 m, x 12
 - T.VIII-W/C: Enlarged T.VIII devel. for the Finnish AF, x 5
 - T.VIII-W/A: [Project] 2 x (??) hp Bristol Mercury VI (-S ?)
 - T.VIII-W/B: [Project] 2 x 925/980 hp Bristol Pegasus XXIVs
 - T.VIII-W/C: 2 x 890 hp Bristol Mercury XI, span 20.01 m *
 -- * T.VIII-W/C was also longer than T.VIII-W/G '/M by 1.83 m
 - T.VIII-W/L: A T.VIII-W/C flown with fixed wheeled u/c, x 1
 - T.8: [Project] 1939 aircrew trainer, T.VIII-W/L deriv. (??)

Fokker T.IX - 1939 twin-engined medium bomber for ML/KNIL, x 1
 - T.IX: aka T.9, intended as repl. for Martin Model 139WH/166
 - T.IX: 2 x 1,375 hp Bristol Hercules II radials, span 24.70 m
 -- T.IX can be viewed as an updated, all-metal devel. of T.V
 -- T.IX flew Sept 1939, damaged in belly landing, April 1940
 -- http://airwar.ru/image/idop/sww2/fokt9/fokt9-8.jpg
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7857.msg68926.html#msg68926
 - T.9W : [Project] 1939 T.IX/T.9 twin-float seaplane deriv.
 -- https://www.secretprojects.co.uk/forum/index.php?topic=7857.0
 -- 3v: http://airwar.ru/image/idop/sww2/fokt9/fokt9-1.gif

Fokker T.10W - [Project] 1938 MLD designation for alt. Fokker designs
 - T.10W: To be twin-engined Ontwerp 168 or single-engined Ontwerp 169
 -- Ontwerp 168: [Project] 1938 2 x Mercury, enlarged T.8W recce-bomber
 -- Ontwerp 168: Enlarged T.8W, sim. to T.VIII-W/C ordered by Finland
 -- Ontwerp 169: [Project] 1939 single-engine MLD torpedo floatplane
 -- MLD meant to order 22 x T.10W (either Ontwerp 168 or Ontwerp 169)

____________________________________________

Ontwerpen Numbers for Fokker Torpedo and Bomber Aircraft

Ontwerp 102 - [Project] July 1934 LVB* twin-engined combat a/c req't
 - 102: 20 Aug 1934, dorsal turret on Lockheed 12 Electra, mock-up
 -- CL-2m military variant as a bomber/attack/strategic recce a/c
 -- * Luchtvaartbedrijf (Technical Branch) formerly Technische Dienst

Ontwerp 111 - [Project] 1934 twin-engined luchtkruiser/bomber*
 - 111: To LVA spec., offered as 'T.5' at Paris Salon of 1934
 -- * Sources vary, likely both a luchtkruiser and a bomber

Ontwerp 115 - [Project] 1934 4-engined, low-wing heavy bomber
 115: See Fokker T.VI (1) project, span 33.00 m, F.36 wing

Ontwerp 122 - [Project] 1935 twin-engined medium bomber
 - 122 : Bomber distinct from Ontwerp 111, with Finland*
 - 122: Medium bomber distinct from the 1934 Ontwerp 111
 -- * Co-op encouraged by Inspecteur der Militaire Luchtvaart
 - T.V 122: LVA medium bomber with Ontwerp 122 features
 -- Ontwerp 122/T.V 122 emerges as LVA's Fokker T.V bomber
 - 122 (A): Twin-engined night-bomber Ontwerp 122 variant

Ontwerp 130 - [Project] 1936 medium bomber w/ Fokker G.1 wing
 - 130 (1): 'Conventional' fuselage, resembled Bristol Blenheim
 - 130 (2): Unrelated mailplane, reduced-scale Ontwerp 122 (A)

Ontwerp 131 - [Project] 1936 3-seat recce/bomber floatplane
 - 131: Multi-role seaplane to repl. the MLD's Fokker C.VIII-W
 -- Ontwerp 131 desig. C.XIII-W/C.13W by MLD, but not ordered

Ontwerp 134 - 1936 twin-engined recce/torpedo bomber floatplane
 - 134: Built as T.VIII-W, eclipsed Ont. 131/C.13W in MLD plans

Ontwerp 135 - [Project] 1937 all-metal light bomber for ML/KNIL
 - 135: 'Super G.1' bomber, 2 x Bristol Mercury VIII radials*
 -- * Some sources say Mercury XX; poss. related to Ontwerp 130

Ontwerp 142 - 1937 all-metal twin-engined, twin-tailed bomber
 - 142: Ordered for the ML/KNIL as Fokker T.IX medium bomber
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7857.msg68926.html#msg68926

Ontwerp 143 - 1937 all-metal twin-engined, twin-tailed bomber
 - 143: Alt. to Ontwerp 142, some sources say was T.IX

Ontwerp 149 - [Project] 1937 twin-engine transitional trainer
 - 149: All-metal crew trainer/light bomber for the  ML/KNIL

Ontwerp 152 - [Project] 1937 twin-engined, twin-boomed bomber
 - 152: aka T.VI/T.6 medium bomber, 2 x Bristol Hercules IIIs
 - Ontwerp 152: G.1 deriv. w/ enlarged nacelle, nose position
 -- T.VI intended as T.V successor, eclipsed by the T.IX/T.9
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg173431.html#msg173431

Ontwerp 166 - [Project] 1938 T.IX-based military transport a/c
 - 166: Transport fuselage mated to T.IX wings and tailplane

Ontwerp 168 - [Project] 1938 enlarged T.VIII-type floatplane
 - 168: MLD recce-bomber equiv. to T.8W-C ordered by Finland
 -- Ontwerp 168 assigned service MLD designation T.10W

Ontwerp 168 - [Project] 1938 twin-engined torpedo floatplane
 - 168 : Enlarged T.VIII equiv. to T.8W-C ordered by Finland
 -- Ontwerp 168 assigned poss. service MLD designation T.10W
 -- MLD to choose either Ontwerp 168 or Ontwerp 169, x 22

Ontwerp 169 - [Project] 1939 single-engined torpedo floatplane
 - 169 : Recce-bomber in competition with Ontwerp 168 (above)
 -- MLD to choose either the Ontwerp 168 or Ontwerp 169, x 22

Ontwerp 184 - [Project] 1939 "Indische Jachtkruiser" for NEI
 - 184: 2 x Bristol Mercury radials, twin tails and rudders*
 -- * Presented as jachtkruiser & bommenwerper w/ glazed nose
 -- https://www.secretprojects.co.uk/forum/index.php/topic,7866.msg307084.html#msg307084

NB: All of the "Indische Jachtkruiser" could, conceivably, have been presented in both heavy fighters and bommenwerper configurations. Only with the first "Indische Jachtkruiser" concept, Ontwerp 184, is a bommenwerper adaptation specifically mentioned.

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« Last Edit: April 13, 2018, 02:06:24 pm by Apophenia »

Offline hesham

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #13 on: April 13, 2018, 06:47:52 am »
OK my dear Apophenia,

you forget this one;

https://en.wikipedia.org/wiki/Fokker_F.32

Offline Apophenia

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Re: Fokker Alpha-Numeric Aircraft Designations
« Reply #14 on: April 13, 2018, 02:16:11 pm »
Thanks hesham. The F.32 wasn't forgotten ... it was ignored. I've omitted all reference to Fokker Aircraft Corporation of America designations unless they relate directly to Dutch Fokker designs or where Dutch production of US designs was undertaken or seriously considered.

Specific US designations are covered here: https://www.secretprojects.co.uk/forum/index.php/topic,10181.msg95373.html#msg95373

I'm hoping that another member will tackle compiling the US Fokker designations list. Hint, hint Jos ...  ;)