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| 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).
 | A three-view drawing (1680 x 1150) |
| WEIGHTS |
| Take-off weight | 10950 kg | 24141 lb |
| Empty weight | 8274 kg | 18241 lb |
| DIMENSIONS |
| Wingspan | 9.98 m | 33 ft 9 in |
| Length | 18.27 m | 60 ft 11 in |
| Wing area | 31.90 m2 | 343.37 sq ft |
| PERFORMANCE |
| Max. speed | 2050 km/h | 1274 mph |
| Range | 1470 km | 913 miles |
| Silgrin, 15.08.2008 21:03 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... reply |
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