Sukhoi Su-11 (I)


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Sukhoi Su-11 (I)

In late May 1947, flight testing commenced of a development of the Su-9, the Su-11 or Samolet LK, which was destined to be the first Soviet jet fighter powered by a turbojet of indigenous design. The fuselage of the Su-11 was fundamentally similar to that of the Su-9, apart from some structural revision, but because of the appreciably larger engines, the wing structure was extensively modified. The Su-11 was powered by two Lyulka TR-1 turbojets each developing 1300kg, these being mounted ahead of the main-spar. Armament was the same as that of the Su-9. Factory trials were completed in April 1948, but the TR-1 turbojet was inadequately developed and, like its predecessor, the Su-11 was handicapped by the suggestion that it copied German technology,. Aleksandr Yakovlev telling Yosif Stalin that it was no more than a "warmed over Me 262".

Sukhoi Su-11 (I)A three-view drawing (1663 x 1073)

  Take-off weight6350 kg13999 lb
  Empty weight4495 kg9910 lb
  Wingspan11.80 m39 ft 9 in
  Length10.57 m35 ft 8 in
  Height3.72 m12 ft 2 in
  Wing area21.40 m2230.35 sq ft
  Max. speed940 km/h584 mph
  Range910 km565 miles

Skp1, e-mail, 05.07.2017 12:03

Why no swept back wings? They had the plans for the 262 instead of using them it looks as though they crossed it with a shtoaravik


Vahe David Demirjian, e-mail, 07.10.2021 Skp1

The Su-11, like the Su-9, had straight wings like the MiG-9 and Yak-15. Despite using native Soviet jet engines rather than captured German jet engines, the Su-11 was a technological dead end because, like the Su-9, it was a slowpoke compared to the MiG-15.


Barry, 28.09.2012 17:52

Do you think Uncle Joe was a little short upstairs because what comrade Yakovlev said about the Su-11 was just the same as he reportedly said about the Alexseev I 215.


DebtMan, e-mail, 16.10.2010 03:22

Looks like when the soviets was taked the design plans of Me-262 was intented built a new aircraft based in that


Vahe David Demirjian, e-mail, 07.10.2021 DebtMan

The Soviets may have used a captured Me 262 as the basis for both the Su-9 and Su-11, because the Su-11's fuselage was narrower than that of the Me 262. I remember that the Nakajima Kikka was also superficially similar to the Me 262 but differed in having a squared-off vertical stabilizer and was lighter.


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