|Wing Load (kg/m2)||71.5|
|Power load (kg/hp)||2.9|
|Speed at 0m||385km/h|
Development of light BICh-20, the BICh-21 similar size and general layout... but with 11 times more powerful engine and pneumatically retractable landing gear. Wooden aircraft was built very clean, ailerons and elevones were integrated. Project was launched in 1938, BICh-21 was ready in 1940.
The only design correction implemented after wind tunnel trials was increased tailfin. Flight trials started in 1941 and were interrupted by the War. Aircraft was easy to fly, it was stable and had good response to control. The speed record for the engine class was registered - 417km/h.
|66k drawing by Igor Soultanov, "History of aircraft construction in the USSR", Vol.2 p.113|
|Created July 16, 1998||Back to|