俄国人笑了:
The final stage of the manufacturer's tests was performed on the Su-29KS. Some of the trials employed a dummy and others a live parachutist, but the aircraft was invariably flown by Sukhoi test pilot Yevgeniy Frolov, Hero of Russia. Nearly 20 ejections were carried out, some during the State acceptance trials. They were performed at altitudes of 164ft to 6,s6oft (50m to 2,000m) and at speeds of 95kts to 216kts (180km/h to 400km/h). Trials were conducted with the aircraft in a variety of flight conditions including inverted flight at 64ft (50m). The minimum altitude for safe escape in inverted flight is 98ft (30m).