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The Tumansky AM-5, designed in 1950, was the first turbojet of entirely Soviet origin produced in quantity. A later version, the AM-9, powered the Mikoyan-Gurevich MiG-19 and Yakovlev Yak-25 aircraft, and, in early 1956, evolved into the R-11, a slightly larger two-shaft engine. The R-11 engine powered the Mikoyan-Gurevich MiG-21 fighter and Yakovlev Yak-28, which the Soviet air force used as a fighter, trainer, and reconnaissance aircraft.

Tumansky developed increasingly powerful versions of this engine. The 60,800 N (13,668 lb) thrust R-11 F2S-300 final production model was also manufactured under license by both India and China. Some 20,000 R-11 engines were manufactured before production ended in 1966.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date 1956 Country of Origin Union of Soviet Socialist Republics Type PROPULSION-Turbines (Jet) Manufacturer Tumansky, U.S.S.R.
 Physical Description Type: Turbojet Thrust/Speed: 50,009 N (11,243 lb.) with afterburner (initial R-11 rating) Compressor: 6-stage low pressure and 3-stage high pressure Combustor: Can-annular, 10 flame tubes Turbine: Single-stage high pressure, single-stage low pressure axial Dimensions Length 259 cm (102 in.), Diameter 68.6 cm (27 in.) (front) and 88.9 cm (35 in.) (rear)
 Materials Overall - Inconel, Steel, Aluminum, Stainless Steel, Titanium ,Paint, Brass, Preservative coating, Plastic, Asbestos
 Inventory Number A19930355000 Credit Line Transferred from the United States Air Force. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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