| 词条 | Lyulka AL-21 | ||||||||||||||
| 释义 |
The Lyulka AL-21 is an axial flow turbojet engine created by the Soviet Design Bureau named for its chief designer Arkhip Lyulka. Design and developmentThe AL-21 is closely similar in technology to the General Electric J79 first flown in 1955, which was the first engine for supersonic flight, using a variable stator.[1] 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.[2] The AL-21 entered service in the early 1960s. Later designed the AL-21F3, it was used in the Sukhoi Su-17, Sukhoi Su-24, Ground-attack variant Mikoyan-Gurevich MiG-23, and Sukhoi T-10 (Sukhoi Su-27 prototype). Specifications (AL-21F3){{jetspecs| |type=Afterburning turbojet |length=5,300 mm (209 in) |diameter=1,000 mm (39 in) |weight=1,700 kg (3,740 lb) |compressor= Two-spool 14-stage axial compressor with variable stator vanes |combustion= |turbine=Two-stage high pressure, single-stage low pressure |fueltype= |oilsystem= |power= |thrust=
|compression=14.75:1 |aircon= |turbinetemp=1,100 °C (2,000 °F) |fuelcon= |specfuelcon=
|power/weight= |thrust/weight=64.7 N/kg (6.6:1)
}} See also{{aircontent|see also=
|related= |similar aircraft= |lists=
|similar engines= }} References1. ^[https://books.google.com/books?id=oGPLBQAAQBAJ&pg=PA16 Aircraft Propulsion and Gas Turbine Engines By Ahmed F. El-Sayed p. 16] 2. ^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. External links{{commons category|Lyulka AL-21}}
2 : Lyulka aircraft engines|Turbojet engines 1960–1969 |
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