GRUSHIN

Pyotr Dmitryevich Grushin worked at MAI under Grigorovich 1931-4, building ultralight in spare time. First original design Sh-Tandem tandem-wing 2-seat attack aircraft (5 December 1937), followed by more advanced BB-MAI flown unknown date about October 1941. Gr-1 (IS) heavy twin-engined escort fighter evacuated from Moscow when about to fly October 1941, but wrecked, ending Grushin’s KB (he joined MiG to design DIS).

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