| The availability of a more powerful radar, the Uragan (Hurricane) 5B, matched with new medium-range AAMs available in alternative semi-active radar guidance and infra-red homing versions in the mid 'sixties, led to upgrading of the basic T-43 (Su-9). The larger-diameter dish of the Uragan I-band radar necessitated an intake centrebody of almost twice the cross-section area of that of the series Su-9. This, in turn, required increasing the intake lip diameter to allow for the same airflow, which, the AL-7F engine being retained, remained essentially unchanged. External piping ducts along the upper rear fuselage, similar to those of the Su-7BM, signified a revised fuel system, and armament comprised two medium-range missiles (one radar-guided and the other IR-homing). With the AL-7F-1 turbojet providing an afterburning thrust of 10,110kg, the revised T-43 series limited all-weather interceptor was adopted by the IA-PVO Strany under the (re-used) designation Su-11 as interim equipment pending introduction of the more advanced Su-15 that was being developed in parallel. The Su-11 supplemented and partly replaced the Su-9 until similarly withdrawn in the early 'eighties.
 | A three-view drawing (1667 x 1033) |
WEIGHTS |
Take-off weight | 14000 kg | 30865 lb |
Empty weight | 9100 kg | 20062 lb |
DIMENSIONS |
Wingspan | 8.43 m | 28 ft 8 in |
Length | 17.4 m | 57 ft 1 in |
Wing area | 26.2 m2 | 282.01 sq ft |
PERFORMANCE |
Max. speed | 1915 km/h | 1190 mph |
Ceiling | 17000 m | 55750 ft |
Red Phoenix, 11.05.2012 08:28 No kidding there, Paul. The only surefire way to tell the difference is the shape of the intake and the dorsal spine of the 'Fishbed'. reply | paul scott, e-mail, 18.08.2009 18:10 Strange as its above /below profile section was identical to the MiG-21. reply |
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