ZAGI A-6
| ZAGI A-6 | |
|---|---|
| Type: | Experimental gyroplane |
| Design country: | |
| Manufacturer: | |
| First flight: |
1933 |
| Number of pieces: |
1 |
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ZAGI A-6 ( Russian ЦАГИ А-6 ) was a Soviet gyroplane . It was created in the first half of the 1930s in the development department for special designs at ZAGI .
history
In 1931 A. M. Tscherjomuchin , W. A. Kuznetsov and I. P. Bratuchin designed the ZAGI's first gyroplane, the 2-EA . Bratuchin then turned to building helicopters. Tscherjomuchin developed the ZAGI A-4 from the 2-EA . At about the same time, Kuznetsov also started planning a gyroplane. In contrast to Cheryomuchin, however, he designed his gyroplane more modern. For example, he did not take over the four-blade rotor of the 2-EA, which was braced with cables and tended to vibrate, but replaced it with a cantilever three-blade rotor that was driven by a shaft connected to the Schwezow M-11 engine. As a special feature for space-saving storage, both the rotor blades could be folded back and the stub wings with their ends bent upwards could be folded up. The main landing gear wheels were rigid and fitted with large balloon tires to compensate for the lack of suspension.
The testing of the gyroplane designated as "A-6" began in early 1933 and was quite successful, but since the A-4 was already being built in series, extensive testing was left to it. Eventually the A-6 was destroyed during tests in the winter of 1933/34. Kuznetsov developed the A-8 as a direct successor .
Technical specifications
| ZAGI A-6 | ЦАГИ А-6 |
|---|---|
| Manufacturer | ZAGI |
| Constructor (s) | WA Kuznetsov |
| crew | 2 |
| Rotor circle diameter | 11 m |
| span | 6.6 m without rotor |
| length | 6.17 m without rotor |
| height | 3.0 m |
| Wing area | 5.9 m² |
| Empty mass | 562 kg |
| Takeoff mass | 815 kg |
| drive | an air-cooled radial engine M-11 |
| Starting power | 70 kW (95 PS) |
| Top speed | 142 km / h |
| Minimum speed | 53 km / h |
| Summit height | 2000 m |
| Flight duration | 2.5 h |
| Takeoff route | 40-50 m |
literature
- Vladimir B. Kazakov: perpendicular to the sky . In: Aviator Calendar of the GDR 1989 . ISBN 3-327-00520-6 .
Individual evidence
- ↑ Bruce H. Charnov: From Autogiro to Gyroplane , Praeger, Westport Connecticut 2003, ISBN 1-56720-503-8 , p. 198