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The Tumansky R-29 is a Soviet aircraft turbojet engine that was developed in the early 1970s.〔Gunston 1989, p. 168.〕 It is generally described as being in the "third generation" of Soviet gas turbine engines which are characterized by high thrust-to-weight ratios and the use of turbine air cooling.〔Sosounov, V.A. (1990). ''The Development of Aircraft Power Plant Construction in the USSR and the 60th Anniversary of CIAM''. AlAA/ASME/SAE/ASEE 26th Joint Propulsion Conference, July 16–18, 1990. Orlando, Florida. AIAA-90-2761.〕 ==Variants== R-29-300 Original variant. Used in the MiG-23MF and related variants.〔(TMKB Soyuz R29-300 (subscription required) ). Janes Aero Engines. Edited: 1 April 2010. Retrieved: 8 September 2010.〕 R-29B-200 Simplified variant of the engine intended for the MiG-27.〔 R-29PN Advanced variant that replaced the -300 model on non-export aircraft.〔 R-29BS-300 Variant with modified gearbox. Used in several export variants of the Sukhoi Su-17.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tumansky R-29」の詳細全文を読む スポンサード リンク
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