A-4, TsAGI/N.K.Skrzhinskij

W
inged autogiro, development of TsAGI 2-EA. Dual controls. Rotor was accelerated by the engine before takeoff.
Confidence in success was so high, that small series production started before the prototype was completed. Indeed, tests in NII VVS (1933) were a complete success, and series build A-4's rolled out of factory (1934).
Here the luck ends: autogiros were sent one-by-one to different military regiments. There were no pilots with any autogiro training - and all A-4s were crushed in a hasty attempts to fly them.
Sources [6], Vol.2 p.425;
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  • A-4, TsAGI
    		• Technical data
    Type A-4
    Function observation
    Year 1933
    1934
    Crew 2
    Engines 300hp Bessonov M-26
    Length 6.5m
    Rotor diameter 13.0m
    Wing Span 6.7m
    Wing Area 6.2m2
    Height 4.0m
    Empty weight 1065kg
    Flight weight 1365kg
    Ceiling 2000m
    Minimum Speed 53km/h
    Maximum Speed 176km/h
    3600 turn 15sec
    Takeoff roll 70-100m
    Landing Roll 3-10m
    Flight Duration 1.3h
    Range 185km
    Armament none
    Modified April 12, 1997
    by Alexandre Savine;    		 Back to
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