OKB-117 (Klimov, Isotov) Jet Engines

[overscan (PaulMM)]

VK-1 Derived from the Rolls-Royce Nene. Very successful engine.

VK-3 Bypass turbojet designed by S V Lyunevich in 1949, first ran in 1952, and was qualified at 5,730 kg (12,632 lb) thrust (dry) and 8,440 kg (18,607 lb) thrust (with afterburner) in 1954. First flown in the I-3U in July 1956, the engine's performances was good but its reliability was poor and it did not enter production. A single-shaft bypass turbojet engine with a 10-stage axial compressor, an annular combustion chamber, a three-stage turbine, an afterburner and a variable supersonic nozzle. Bypass air was drawn from the second stage of the compressor to 12 external pipes and was directed into the turbine through an adjustable mixing valve, bypassing the combustion chamber. The 8th stage compressor had two position adjustable guide vanes.

VK-5/5F uprated version of the VK-1 with 15% more thrust. Abandoned as obsolete. VK-5F was an afterburning version of the VK-5

VK-7 centrifugal jet engine for the Mikoyan I-370, which flew on 16 February 1955, with Mikoyan test pilot Fyodor I. Burtsev at the controls. Its performance was actually very good, particularly after it was refitted with an afterburning VK-7F engine, but the VK-7 was obsolete in concept and was cancelled along with the I-370.

VK-9

VK-11 turbojet with a thrust of 4500 kg dry 9000 kg afterburning proposed for Tupolev 113, Yak-2VK-11 (Yak-28 development/successor)

VK-13 First engine with turbine blade cooling. Proposed for Yak-32

VK-15

Isotov took over the leadership of OKB-117 in 1960.

RD-17-117K turbojet proposed for Sukhoi T-4.

There's a bit of a gap where Isotov concentrated on their turboprop designs (TV2-117, TV3-117). No jet projects known for the 1960s after the RD-17.

RD-33 turbofan used on the MiG-29.

 

[boxkite]

VK-9
Project, officially known from April 1954; probably for heavy supersonic aircraft. The start of production was planned for Plant/Factory 45 till May 1955, but it was replaced by WK-11.

versions:
VK-9: basic version
VK-9F: version with increased thrust

usage:
VK-9: planned for Lavochkin La-250 (initial project), Tupolev '98' (as alternative engine), reserve when planning the Myasishchev M-6 (July 1954)
VK-9F: planned on Tupolev Tu-108 (as alternative engine)
Thrust with afterburner: 118 kN / 12,000 kp
Thrust without afterburner: 83 kN / 8,500 kp

sources:

• РИГМАНТ, В.: Под знаками „АНТ“ и „Ту“. Авиация и Космонавтика 1997, 10 - 2001, 2.
• ЯКУБОВИЧ, Н. В.; ЛАВРОВ, В. Н: Самолеты В. М. Мясищева. Москва: РУСАВИА, 1999.
• БАЖАНОВ, А.; МЕДВЕДЬ, А.: ММПП „Салют“ - страницы истории. Москва: ООО “Восточный горизонт”, 2002.
• ПОДРЕПНЫЙ, Е.: Реактивный прорыв Сталина. Москва: Яуза, ЭКСМО, 2008.
• ЯКУБОВИЧ, Н. В.: Самолеты С. А. Лавочкина. Москва: РУСАВИА, 2002.

 

[boxkite]

VK-15
Project around 1960, not realized.

versions:
VK-15: basic version
VK-15B: originally for single use on a strategic missile
VK-15M: further development for supersonic long-haul aircraft

usage:
VK-15B: planned for Ilyushin P-20 (from 1955)
VK-15M: planned for Myasishchev M-56, Myasishchev M-55V, Moskalyov GSB, DSB (projects 1957-60), Ilyushin Il-66 (March 1960).

sources:

• BUTOWSKI, P.: Rosyjskie naddzwiekowe bombowce strategiczne (I). NTW 1993, 12, 32 - 38.
• ПЕТРАКОВ, В.: “Супермясищев”. Крылья родины 1992, 9, 28 - 29.
• ЯКУБОВИЧ, Н. В.; ЛАВРОВ, В. Н: Самолеты В. М. Мясищева. Москва: РУСАВИА, 1999.
• Невский Бастион. Вып. 5. (Bulletin of the Russian Aviation Research Group of Air-Britain, Vol. 38, No. 139, 9/99, S. 44 - 66).
• ЕГОРОВ, Ю. А.: Самолеты ОКБ С. В. Ильюшина. Москва: РУСАВИА, 2003.