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Author Topic: Manfred Weiss -- Hungarian Aircraft Producer  (Read 11279 times)

Offline Apophenia

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Manfred Weiss -- Hungarian Aircraft Producer
« on: July 28, 2010, 07:42:30 pm »
Heshams query on the unbuilt fighters, WM-17/WM-18, got me thinking about Manfred Weiss.,10487.0.html

This Hungarian aircraft maker was a spin-off of the large steel mill combine (on Csepel, an island in the Danube off Budapest) sometimes described as the 'Krupp of Hungary'. The Manfred Weiss aircraft plant began work in 1927. The aero engine works began in 1928.

Note: in Hungarian usage, proper names are reversed (as compared with English). The firm's Hungarian name was the Weiss Manfréd Muvek (WMM or Manfred Weiss Works). The engine division was the Weiss Manfréd Repülögép- és Motorgyár Rt.

Among the Manfred Weiss aero engines produced were:

- Siemens & Halske series of air-cooled radial engines (Sh 10, Sh 11, and Sh 12)
 - eg: WM Sh 11 for MSrE BL-6, WM Sh 12 for WM's licenced Udet U12/b Flamingó trainers
- Manfred Weiss Sport I/II/III series of 100-130hp air-cooled 4-cylinder inline engines
 - eg: Sport used in WM-10a/-13 and Bánhidi Gerle (Turtle Dove) biplane trainers
- Bristol Jupiter VI 420hp radial (licenced by Manfred Weiss from French Gnome-Rhône)
 - eg: WM-built Fokker C.V derivatives, MW-Fokker F.VIII, AVIS I/II fighters, etc.*
- Gnome-Rhône 9K Mistral (MW licenced Gnome-Rhône 9Krsd) 520hp air-cooled radial engine
 - eg: MW 9K Mistral for WM-16 Budapest II (Fokker C.V derivative)
- Gnome-Rhône 14K Mistral Major (870 hp WM-K-14A/ 910 hp WM-K-14B) twin-row 14-cyl radial
 - eg: WM-21, WM-23, MÁVAG Héjja, LüH He-170, LüH Ju-86K, etc.
- Daimler Benz DB605Bs (for Hungarian built Messerschmitt Me-210Ca-1/C-1s).

* Note: engines for MALÉRT/LüH WM-Caproni Ca.97 transports were Piaggio Jupiter VIIIs. WM engines were also applied to foreign-built aircraft for Hungary (eg: Fokker F.XIs).

WMM built a product range including bicycles, motorcycles, cars, buses, trucks, tractors, etc. Automobile production ended in the early 1930s. The larger motor vehicles were mostly licence-produced (John Deere tractors, FIAM trucks, etc.) until the appearance of the Csepel motorcycle, 6-wheeled lorries (WM HI and WM HII) for the Hungarian army, Straussler armoured cars, and the Turán tank series (including their M and Z engines - diesel and petrol V8s, respectively).

Offline Apophenia

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Re: Manfred Weiss -- Hungarian Aircraft Producer
« Reply #1 on: July 28, 2010, 07:43:01 pm »
Manfred Weiss Aircraft Designations

WM- designations (sometimes written as W.M. ) stand for 'Weiss Manfréd' (proper names being reversed in Magyar usage compared with English). The company itself was the Weiss Manfréd Muvek (WMM or Manfred Weiss Works). The engine division was the Weiss Manfréd Repülogép- és Motorgyár Rt. (WM Rt).

Manfred Weiss WM-1 -- [??]
Manfred Weiss WM-2 -- [??]
Manfred Weiss WM-3 -- [??]
Manfred Weiss WM-4 -- [??]
Manfred Weiss WM-5 -- 1928 licenced Caproni Ca.97 transport for MALÉRT (later to LüH)
Manfred Weiss WM-6 -- [??]
Manfred Weiss WM-7 -- [??]
Manfred Weiss WM-8 -- [??]
Manfred Weiss WM-9 Budapest - licence-built Foker C.V-E recce-bomber aircraft *
Manfred Weiss WM-10 Ölyv (Buzzard/Hawk) - biplane trainer (designed by Andor Halász, 1930)
 - WM-10 prototype, 100hp Manfred Weiss Sport I 4-cyl engine, 1 built (Sept 1931)
 - WM-10a production, 120hp Manfred Weiss Sport II 4-cyl engine, 8 built (1933)
 - WM-13 [see below]
 - EM-10, 5 x WM-10a re-engined with Siemens Sh.12 for military aerobatic training
 [15 WM-10s built (HA-AKA through HA-AKO and HA-MAT, HA-AKJ was converted into the WM-13)]
Manfred Weiss WM-11 Budapest - licence-built FokKer C.V recce-bomber aircraft
Manfred Weiss WM-12 - [??]
Manfred Weiss WM-13 - biplane trainer (WM-10a re-engined with a 130hp Sport III), 1934
Manfred Weiss WM-14 Budapest - licence-built Fokker C.V-D recce-bomber**
Manfred Weiss WM-15 - [??]
Manfred Weiss WM-16 Budapest II - licence-built Fokker C.V recce-bomber, 1933
 - WM-16A with 550hp Gnome-Rhône 9K Mistral, 9 built
 - WM-16B with 860hp Gnome-Rhône 14K Mistral Major, 9 built
 [Single-seat or twin-seater. Hungarian re-design for WMM by Andor Halász/Miklós Hoff]
Manfred Weiss WM-17 - [Project] single-seat fighter aircraft
Manfred Weiss WM-18 - [Project] single-seat fighter aircraft
Manfred Weiss WM-19 - [??]
Manfred Weiss WM-20 - HD.22 deriv. designed by Halász/Hoff, 1937, 320hp C-7, HA-BOS, c/n 1301
 [Note: some sources say WM-20 was a single-seater, but available 3v drawing show a two-seater,
Manfred Weiss WM-21 Sólyom (Falcon) - WM-16 Budapest II development, 1938
 - WM-21 with 870hp WM-K-14A radial
 - WM-21B [??]
 [128 WM-21 Sólyom built (25 by Manfred Weiss, 43 by MÁVAG, and 60 by MWG)]
Manfred Weiss WM-22 - [Project], 2-seat recce version of WM-23 (see WM-23B)
Manfred Weiss WM-23 Ezüst Nyíl (Silver Arrow) - single-seat fighter by Béla Samu, 1941
 - WM-23 - prototype, 1 built, crashed on test flight
 - WM-23B - [Project], 2-seater reconnaissance*** WM-23 with rear defence.
 - WM-23G - [Project], Gyakorlo (Advanced Trainer) based on WM-23 fighter
 - WM-123 Ezüst Nyíl II - [Project] DB603-powered development of WM-23 fighter
Manfred Weiss WM-24 - [Project] possible desig. for DB603-powered WM-23/WM-123 fighter
Manfred Weiss WM-... [??]
Manfred Weiss WM-123 Ezüst Nyíl II - [Project] alt desig for DB603-powered WM-23 fighter

* WM negociated rights for the Fokker C.Vs in 1927 [see Manfred Weiss Designation Problems]

** WM-14 designation sometimes also applied to the MW-licenced Gnome-Rhône 14K engine.

*** The term "Felderito" (reconnaissance) is applied to this variant although the 'B suffix suggests "Bombazo" (perhaps for 'reconnaissance-bomber', possibly a Sólyom replacement?).

NB: Ficticious XNI-02 Kaméleon jet fighter is sometimes attributed to Manfred Weiss
« Last Edit: July 29, 2010, 03:18:03 pm by Apophenia »

Offline Apophenia

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Re: Manfred Weiss -- Hungarian Aircraft Producer
« Reply #2 on: July 28, 2010, 07:43:26 pm »
Manfred Weiss Designation Problems

Manfred Weiss' 'Budapest' series is very confusing. Some sources list WM-16A as Budapest I (with WM-16B as Budapest II). Other list the two later models as WM-16 Budapest A and WM-16 Budapest B. Still others list WM-16A as Budapest 9 and WM-16B as Budapest 14!

What is known is that, 1927, WM negotiated a licence to produce 50 Fokker C.V-D fuselages and their Jupiter engines (presumably with Fokker supplying the wings and empennage). Some (or parts) of these aircraft seem to have been incorporated into later WM-16s. Still others were re-manufactured by other firms -- REGJÜ's C.V.D/K and the sole C.V.D/U 'Furricane'.

WMM licence-built a number of aircraft without obvious WM- designations. One source refers to licenced-built Caproni Ca.97 airliners (4 to airline MALÉRT, H-MALD-'MALG in 1929) as WM-5s. Other licenced aircraft may explain the gaps in the early WM- series. The seemingly undesignated aircraft types are:

1928 - Heinkel HD.22, Gnome-Rhône Jupiter VI, 37* built (H-MPHB-'MPHZ, H-MPIA-'MPIO)
1928/29 - Udet U12/b Flamingó trainer** (125hp WM-Siemens & Halske Sh12 radial, 40 built)
1929 - Fokker F.VIII (2 to MALÉRT***, July 1929/Oct 1930, 3 to LüH as H-MFNA-MFND****)

There is also the question of whether WM- designations were applied to aircraft imported as pattern airframes with later WM production (eg: Fokker F.VIII H-MFNA) or imported patterns where no WM production ensued (eg: four Fokker D.XVI fighters). Then, there were licence production agreements without pattern airframe or production (eg: the Fokker G.1).

Finally, were distinct WM- designations ever applied to rebuilt/modified aircraft (eg: the two F.IIs and single F.III rebuilt as LüH ambulance aircraft)?

LüH Fokker F VIIs rebuilt by WM as ambulances

* Some sources list 27 built, registration list suggest up to 40 (+ Heinkel-built H-MPHA)

** Golden Year of Aviation civil register lists over 100 WM-built U12s. At first glance, that total would seem to include imported Flamingos and the locally-produced, U12a-derived, KRG Hungária - but those are listed separately.

*** Magyar Légiforgalmi Részvény Tarsasag or simply Magyar Légiforgalmi Rt.

**** The 3 LüH Fokker F VIIIs were reregistered HA-FNB-'FND. In 1936, HA-FNC became an ambulance. WM also converted 2 Fokker-built F.VIIs as ambulances.

Offline Apophenia

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Re: Manfred Weiss -- Hungarian Aircraft Producer
« Reply #3 on: July 28, 2010, 07:44:25 pm »
Légügyi Hivatal (LüH) serials for Manfred Weiss-built Aircraft (partial list)

WM-Udet U12/b ------ 351-391
WM-Fokker C.V-E   ---- 2201 (WM-9 prototype)
WM-Fokker C.V-D ---- 2202-2250 [Budapest I, WM-11 ?]
WM-16A Budapest II - 12101-12109
WM-Fokker C.V-E ---- 2101-2109 [Budapest I, WM-9 ?]
WM-21 Sólyom ------- 12121-12133 (first WM series)
WM-Fokker C.V-D ---- 2301-2308 [Budapest I, WM-14 ?]
WM-16B Budapest II - 5201-5209
WM-Heinkel HD-22 --- 1201-1230
WM-20 (prototype) -- 11250

Offline hesham

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Re: Manfred Weiss -- Hungarian Aircraft Producer
« Reply #4 on: April 20, 2017, 06:33:58 am »

I found this Info about WM-15,and the google translate told me it means; Machine Courier ?.