Tags: Aircraft.
Mikoyan-Gurevich I-75 a final design of a long line of experimental swept-wing interceptors was a re-engined and radar-equipped version of the earlier Mach 2 class aircraft dubbed I-7 itself a development of yet another prototype the I-3. Work on the I-7U started in early 1956 when the airframe was modified to accommodate the massive Lyulka AL-7F after-burning turbojet engine.