Folland Fo-list


Fight for yor Right!
14 January 2007
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Hi all,

this is my Folland aircraft list, if you can fill the gaps, please do it. (Sorry only in german).

Servus Maveric


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what are those words mean ?,kampfflugzeug and reiseflugzeug,
and here is some Folland projects;
Fo.121 light communication aircraft
Fo.128 & Fo.131 medium gliders
Fo.134 Rapide replacement
Fo.124 two/three seat trainer/aerobatic low wing aircraft.
"what are those words mean ?,kampfflugzeug and reiseflugzeug"

"Kampfflugzeug" today generally means all kinds of armed aircraft, in the former
german AF (WW II), the term was used for bombers (NOT fighters = "Jagdflugzeug") ,
"Reiseflugzeug" means (civil) communication aircraft/light transport
In Polish monthly " Lotnictwo " 5/2008 I've found an article concerning history of the Fairey Barracuda
built to the Air Ministry Specification No S.24/37 for diving bomber and reconnaissance aircraft.
Competitors of the Barracuda were Bristol S.24/37, Westland P.11, Supermarine type 322 Dumbo,
Blackburn B.29, Hawker S.24/37 and Folland H.21.
It made me think which of projects listed below could be Folland's design H.21 ?

Fo. 100 Bombenflugzeug Projekt 1937
Fo. 101 Jagdflugzeug Projekt 1937
Fo. 102 Kampfflugzeug Projekt 1937
Fo. 103
Fo. 104 Torpedoflugzeug Projekt 1937
Fo. 105
Fo. 106
Fo. 107 Kampfflugzeug Projekt 1938
Fo. 108 Forschungsflugzeug Projekt 1940

It is almost certain that no Fo. 101 as a fighter and no Fo. 108 as the experimental Folland Frightful.
In "The Spirit Of Hamble", by Derek N.James (many thanks, Paul !) , the Fo.145 is described as a
"twin egined VTO aircraft". As VTO usually stands for "vertical take-off", this seems to be
a VTOL version of the Gnat. Are the any other informations, anywhere ?
Hi all,

a little text avbout some Folland projects, note the Fo.126!

If you have drawings of the Fo.126, Fo.128 and Fo.131 please let me know ;)


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Hi All,

Folland aircraft

(all except Fo 108, Midge and Gnat only projects)

Fo 100 - April 1937, single-engine bomber (Rolls-Royce Vulture engine)

Fo 100A - August 1937, single-engine bomber (RR Vulture)

Fo 101 - April 1937, twin-engine fighter (Alvis Pelides engines)

Fo 102 - April 1937, single-engine interceptor fighter (RR Vulture)

Fo 103 - no details

Fo 104 - July 1937, twin-engine torpedo-spotter-reconnaissance (Bristol Aquila)

Fo 105 - November 1937, twin-engine medium civil transport (Napier Rapier)

Fo 106 - November 1937, twin-engine medium civil transport (Bristol Aquila), posiibly to Specification C.15/38

Fo 106A - August 1938, four-engine medium civil transport (Bristol Taurus), posiibly to either C.14/38 or C.15/38 specifications

Fo 107 - April 1938, single-engine interceptor fighter (Napier Sabre)

Fo 108 - July 1938, single-engine flying test bed to Specification 43/37, 12 built, known as Frightful

Fo 109 - October 1939, single-seat twin-engine (Wright Cyclone) photographic aircraft

Fo 110 - October 1939, two-seat version of the Fo 109

Fo 111 - Nobvember 1939, single-engine bomber

Fo 111A - January 1940, single-engine bomber (P&W Twin Wasp)

Fo 112 - January 1940, single-engine unarmed bomber (P&W Wasp or Napier Sabre)

Fo 112A - September 1940, single-engine unarmed bomber (Napier Sabre)

Fo 113 - 1940, two-seat twin-engine bomber to Specification B.1/40

Fo 114 - 1940, two-seat twin-engine bomber to Specification B.1/40 (RR Griffon)

Fo 115 - 1940, single-engine torpedo/reconnaissance bomber to Specification E.28/40 (Napier Sabre)

Fo 116 - 1940, single-engine torpedo/reconnaissance bomber with variable incidence wing to Specification E.28/40 (Bristol Centaurus)

Fo 116A - March 1942, as Fo 116 with Centaurus III engine

Fo 117 - September 1942, single-seat fighter to Specification F.6/42 (Bristol Centaurus)

Fo 117A - December 1943, modified Fo 117 to Specification F.19/43 with laminar flow wing (Bristol Centaurus), further modification with single jet engine without project number

Fo 118 - May 1943, single-seat single-engine naval fighter to Specification N.7/43 (Bristol Centaurus)

Fo 119 - June 1943, single-engine dive bomber to Specification O.5/43

Fo 120 - October 1944, twin-engine amphibian (Bristol Aquila or Alvis Leonides engines)

Fo 121 - March 1945, single-engine Air Observation Post (AOP) aircraft to Specification A.4/45 (DH Gipsy Queen 31 engine)

Fo 121A - March 1945, as Fo 121

Fo 121B - ?

Fo 121C - March 1945, as Fo 121/121A (DH Gipsy Queen 51)

Fo 121D - ?

Fo 121E - March 1945, as Fo 121/121A/121C (DH Gipsy Queen 71)

Fo 122 - five-seat single-engine personal aircraft (DH Gipsy Queen 71)

Fo 123 - twin-engine taillessamphibian (DH Gipsy Queen 71)

Fo 124 - June 1946, two/three-seat trainer (Lycoming or Cirrus minor engine)

Fo 125 - single-engine amphibian (DH Gipsy Queen 31)

Fo 126 - September 1946, ASR amphibian (RR Griffon)

Fo 127 - September 1946, three-engine light passenger/cargo aircraft (DH Gipsy Major), named Fiona

Fo 128 - March 1947, all-metal troop transport glider to Specification X.30/46

Fo 129 - April 1947, eight-seat three-engine light passenger/cargo aircraft (DH Gipsy Queen)

Fo 130/01 - November 1947, six/eight-seat three-engine civil transport aircraft (Cirrus Major III)

Fo 130/02 - March 1948, eight-seat three-engine civil transport aircraft (Cirrus Major III)

Fo 130/03 - March 1948, five/eight-seat two-engine civil transport (Armstrong Siddeley Cheetah 25)

Fo 130/04 - March 1948, eight/ten-seat two-engine civil transport (Armstrong Siddeley Cheetah 25)

Fo 131 - July 1948, wooden version of the Fo 128 glider

Fo 132 - February 1949, single-engine trainer to Specification T.16/48 (AS Cheetah 10)

Fo 133 - March 1949, research aircraft for RAE Farnborough

Fo 134 - 1948-1949, joint project with Saunders-Roe (SR project number - P 132), four-engine 11 passenger aircraft to Specification 26/49 (DH Gipsy Major or Blackburn Bombardier engines)

Fo 134 (second variant) - October 1949, as above but for 17 passengers and with four DH Gipsy Queen II engines

Fo 135 - February 1949, research aircraft for RAE Farnborough

Fo 136 - aero-generation (wind turbine)research for ERA

Fo 137 - aero-generation (wind turbine) research for Ministry of Fuel and Power

Fo 138 - January 1951, research (unspecified) for RAE Farnborough

Fo 139 - 1954, Midge, 1 built (G-39-1)

Fo 140/1 - January 1952, single-engine lighweight fighter (Bristol BE22 Saturn engine)

Fo 140/2 - as avobe but with RR Derwent engine

Fo 141 - Gnat F1 prototype, 1 built (G-39-2)

Fo 142 - October 1953, jet deflection aircraft

Fo 143 - 1959-1961, improved Gnat Mk 1 variant, Mk 2, proposed as a single-seat fighter, two-seat trainer, two-seat night fighter, navalised fighter (Bristol Siddeley Orpheus engine)

Fo 144 - 1959, Gnat T1 two-seat trainer

Fo 145 - January 1958, twin-engine experimental VTO aircraft

Fo 146 - advanced trainer based on the Gnat Mk 5 project, variable geometry wing

Fo 147 - twin-engine variable geometry wing fighter with either conventional tail unit or tailless with retractable foreplane (RB 153 turbojets)

Fo 148 - single-engine variable geometry wing fighter/advanced trainer (RB 153-61 turbojet)


Great stuff... I had trouble finding more than a dozen of them! Thank you so much for sharing.
LAW you make me happy...

...a complete list for Folland aircraft :) :D ;D
"Folland Gnat - Sabre Slayer and Red Arrow" by Victor Bingham, J&KH Publishing, 2000, ISBN 1 900511 789
Spirit of Hamble. Folland Aircraft by Derek N. James, Tempus Publishing Ltd., Stroud 2003


Thanks, LAW. Are in this book drawings or pics for this named projects?
There are a lot of pictures, but mostly Midge and Gnat aircraft, various parts and devices built by Folland, and three photos of the Fo 108 (with Napier Sabre, Bristol Hercules and Bristol Centaurus engines). As for the drawings of the projects are as follows:

- Naval Gnat
- Gnat Mk 4
- Gnat Mk 5
- Fo 146 Advanced Trainer
- Fo 147 Fighter
- Fo 148 Fighter
- HS.1171 Trainer (Hawker Siddeley designation, but with Folland origin)


Folland formed Folland Aircraft in June 1936 while still employed by Gloster but this was simply registering a name as it had a nominal capital of only £100. Folland then amalgamated with British Marine Aircraft in March 1937 and the company spent most of that year reorganising and refinancing (BMA having gone into voluntary liquidation) before relaunching as Folland Aircraft in December.
The designs Fo100 - Fo106, if the list and dates are correct, where therefore produced at a time when the company was in no position to build anything. I suggest that they were all conceptual/speculative designs to give the company some sort of portfolio when talking to potential investors, none appear to be related to any military or civil specification in this year. Likewise I doubt that Fo105 and Fo106 have anything to do with either C.14/38 or C.15/38; twin Aquila would certainly be underpowered for the role. Fo106a was definitely tendered to C.15/38
The twin engine design shown in a 1940 advertisement is likely to be from this early period ( see,4188.msg144336.html#msg144336) although whether it is Fo105 I cannot say, it depends whether Napier Rapiers could be install on their side, which appears doubtful.
I just spotted three errors in the Fo list in post #6.
Fo136, 137 and 138 were not aircraft; the first two were related to aero-generation, i.e. wind turbines, and the last was unspecified research for the RAE.
Here is one example of Folland's research carried out as Fo136 and Fo137


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Many thanks for this correction. Apart from the interesting project, (though no aircraft), it
shows, that lists with designations can misguide. Well, who reads about the "Messerschmitt KR 200"
shouldn't expect an aircraft, too ! ;)
I ventured to edit LAWs list, was a good job nevertheless.
What was this ?,

Bomber plane design. Great Britain.
In the years 1942-1943, work was carried out at Folland Aircraft on the project of an on-board bomber.

I do not have any further data.

In Poland.

From January 1942 to December 1943, Eng. Jerzy Płoszajski, who participated in the design work on the on-board bomber plane and the fighter plane.

Probably refers to the Fo.119 torpedo bomber design for O.5/43

Płoszajski's name does not appear on the list of senior design staff sent to the Air Ministry in October 1942, so he must have been a junior member of the team

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