Mikoyan/Gurevich I-75
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Mikoyan/Gurevich I-75

Retaining the wing of the I-7U and designed around the 30km acquisition-range Uragan 5 radar and a pair of heavy, long-range K-8 beam-riding AAMs, the I-75 was flown for the first time on 28 April 1958. Powered by a Lyulka AL-7F-1 turbojet offering 6240kg and 9215kg with afterburning, the I-75 flew five times before being grounded on 15 May for installation of the Uragan 5B. Testing was resumed on 25 December 1958. Although the I-75 demonstrated exceptional performance, the prototype was flown only 18 times after the resumption of the test programme, which was terminated on 11 May 1959 with the decision to adopt the competitive Sukhoi T-431 for series production (as the Su-9).

Mikoyan/Gurevich I-75A three-view drawing (1680 x 1150)

    Take-off weight10950 kg24141 lb
    Empty weight8274 kg18241 lb
    Wingspan9.98 m33 ft 9 in
    Length18.27 m60 ft 11 in
    Wing area31.90 m2343.37 sq ft
    Max. speed2050 km/h1274 mph
    Range1470 km913 miles

Silgrin, 15.08.2008

Excellent design. As far as I know, it lost to Su-9 due to Su`s better thrust-to-weight ratio and climb rate. Just curtious what the climb rate of I-75 could be...

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