(Rus)   Yak-3 in flight. The cockpit test pilot V.L. Rastorguev.

V.L. Rastorguev also tested the Yak-3RD with the RD-1 liquid propellant rocket engine, developed by the future academician, rocket engine designer, V.P. Glushko in 1944. The aircraft reached a speed of 782 km / h at an altitude of 7800 m, but on the third test flight, on August 16, 1945, the aircraft crashed, killing the pilot and destroying the only Yak-3RD.