Soviet rocket point interceptor designed by Polikarpov beginning in 1943.
The small aircraft, powered by a Glushko engine burning nitric acid and
kerosene, was designed to reach a speed of 845 km/hr on flights of 8- to
14-minute duration. Prototype construction was underway when Polikarpov
died on Jul. 30, 1944. He had Stalin's support but many other enemies. The
result was that his design bureau and projects were immediately cancelled
after his death.
See also rocket plane.