Military apparatus MA-7
| Military apparatus MA-7 | |
|---|---|
|
|
| Type: | Fighter plane |
| Design country: | |
| Manufacturer: | |
| First flight: |
1925 |
| Commissioning: |
No |
| Number of pieces: |
1 ( matriculation No. 670 ) |
The military apparatus MA-7 was in 1924 by August Haefeli in the workshops of K + W Thun as a prototype built fighter aircraft of the Air Force of the Swiss army .
History and construction
The contract for the construction of a powerful fighter came from the Federal Military Department . The structure of the single-handled double - decker in wood construction with fabric covering and wing struts with N-struts corresponded to that of the Fokker D.VII from 1918 . The aptitude tests on the aircraft for the air force began in February 1926.
The prototype was returned to the manufacturer in 1926 because of unsatisfactory flight characteristics and flight performance. The manufacturer responded by installing a 400 hp LFW-12 X-1 engine from the Winterthur locomotive factory . However, this engine was too big in its dimensions and too heavy in terms of its weight . As a result, the entire MA-7 project was discontinued.
In April 1925, works pilot Max Cartier set a Swiss altitude record of 9800 m above sea level with the MA-7 . M. on.
Technical specifications
| Parameter | Data |
|---|---|
| crew | 1 |
| length | 6.61 m |
| span | 9.91 m |
| height | 2.79 m |
| Max. Takeoff mass | 1213 kg |
| Top speed | 235 km / h |
| Service ceiling | 7600 m |
| Range | 300 km |
| Engine | a Hispano Suiza HS-42 8 Fb |
| Armament | prev. Fl-MG in the fuselage |
literature
- Urech Jakob; Hunziker Emil: The airplanes of the Swiss Air Force since 1914 , published by the Dept. of the Dübendorf military airfields, Th. Gut & Co publisher, 1st edition Stäfa 1974
Web links
- Hervé de Weck: Arms factories. In: Historical Lexicon of Switzerland .
- www.wings-aviation.ch
Individual evidence
- ↑ Urech Jakob; Hunziker Emil: The aircraft of the Swiss Air Force since 1914 , edited by the Dept. of the Dübendorf Military Airfields, Th. Gut & Co publishing house, 1st edition Stäfa 1974, p. 134