Mikoyan-Gurevich I-75
The Soviet Mikoyan -Gurevich I-75 (Russian Микоян - Гуревич И -75) was a heavy interceptor for all-weather area from the second half of the 1950s. Designed as a competing design for the Sukhoi Su- 9 and T-43, they could not prevail against it and therefore did not go into mass production. Nevertheless, it was 2,300 km / h its time the fastest equipped with a jet propulsion aircraft in the USSR.
Development
The design of I-75 was based on the I-7 from the mid-1950s, which is why they initially received the designation I- 7U. Optical corresponded to the I-75 is an enlarged version of the E -2A, one of the early prototypes of the MiG- 21st The wings were taken from the MiG -19 and had a leading edge sweep of 55 ° and two large boundary layer fences. The tail of the middle Deckers was also swept. The in hull located Ljulka AL -7F -1 engine was powered by an incipient in the bow inlet duct with air. Also in the bow shock wave in the diffuser of the central air intake, there was the radar type Uragan 5B. The elevator was designed as a pendulum rudder and the rudder was a stern warning device, as well as the automatically adjustable exhaust nozzle was positioned at the rear. The armament consisted according to the in force at the time of Soviet military doctrine from two air -to-air missiles on underwing pylons. The two machine guns had been omitted.
Flight testing of the renamed ultimately in I- 75F engine in 1957 carried out by F. I. Burtsev and provided some insights into the behavior of swept-wing aircraft at high speeds. She was in her time the fastest Soviet aircraft with pure TL- drive. From I- 75F delta -wing aircraft record Je- 150 and Je -152 emerged.