White WM-10
| Weiss WM-10 Ölyv | |
|---|---|
| Type: | Trainer aircraft |
| Design country: | |
| Manufacturer: | |
| First flight: |
September 1931 |
| Commissioning: |
1933 |
| Number of pieces: |
14th |
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The Weiss WM-10 Ölyv ( German Bussard ) was a Hungarian training aircraft from the 1930s.
development
The Manfréd Weiss Stahl- und Metallwerke Csepel began producing aircraft in 1928. Initially only German models were built under license, but in the early 1930s a self-constructed type appeared with the WM-10 (for Weiss Manfréd), which is also equipped with the self-developed WM Sport I engine with 100 PS (74 kW) could. The tests carried out from September 1931 onwards led to the installation of a more powerful WM Sport II engine with 120 hp (88 kW) in November . In this configuration, a small series of eight aircraft designated as WM-10a was launched in 1933, one of which was a test model with a WM-Sport-III drive that produced 130 hp (96 kW) and larger fuel tanks to increase the range received. This has made good experiences, so that most of the other WM-10a were gradually converted to this standard, known as WM-13. A second series of five, built as the EM-10, received the German Siemens & Halske Sh 12 aero engine , which was manufactured under license in Hungary, and was mainly used as an aerobatic trainer. In 1938 the first series models that were still flying were also given the Sh 12. The planes were used by the Hungarian Air Force until 1941 ; the last three were then handed over to aero clubs, where they were used as tow planes for gliders .
construction
The WM-10/13 or EM-10 is a tensioned, single-handled double - decker in metal construction with a rectangular hull made of welded steel tubes with fabric covering. The upper and lower wings are staggered and consist of two spars with tubular steel belts, framework ribs with steel profiles and fabric covering. They are connected to one another by N-posts. The tail unit is formed by a fabric-covered steel frame. The rear wheel chassis is rigid and has rubber suspension.
Technical specifications
| Parameter | Data |
|---|---|
| crew | 1-2 |
| span | 9.5 m |
| length | 7.2 m |
| height | 2.7 m |
| Wing area | 21.8 m² |
| Wing loading | 42.7 kg / m² |
| Power load | 7.8 kg / hp |
| Area performance | 5.5 hp / m² |
| Empty mass | 530 kg |
| Payload | 400 kg |
| Takeoff mass | 930 kg |
| drive | an air-cooled four-cylinder in - line engine Weiss WM III |
| rated capacity | 120 hp (88 kW) |
| Top speed | 190 km / h |
| Landing speed | 84 km / h |
| Summit height | 4800 m |
| Range | 1200 km |
literature
- Peter All-Fernandez (ed.): Aircraft from A to Z . tape 3 . Bernard & Graefe, Koblenz 1989, ISBN 3-7637-5906-9 , pp. 406/407 .
- Werner von Langsdorff : Handbook of aviation . Born in 1939. 2nd, unchanged edition. J. F. Lehmann, Munich 1937, p. 487/488 .
Web links
- WM-10 Ölyv. Retrieved January 30, 2019 (Russian).