|Width (with rotors)||?|
|Rotor (disk) load||32.2|
|Power load (kg/hp)||3.0|
First G-4 was flight-tested in October 1947 by test-pilot M.K.Bajkalov. Helicopter was capable to fly horizontally with one engine shot down, and land safely in autorotation regime. The first prototype did not meet expectations (some calculated parameters were not reached). As a result of incomplete pilot instructions, it was crashed.
The second prototype with improved rotor blade airfoil passed the extended test program without problems. Gliding (autorotation) rate was 12m/sec, with gliding angle ~16°. In this case landing speed was 80-90km/h with 10-15m roll.
Powerplant and rotors passed 100 hours resource test (performed for the first time on helicopter in the USSR).
Small series of G-4 were built;
|Modified March 28, 1997||Back to|