M-71 is a Soviet aviation two-row star-shaped 18-cylinder engine designed at the A. D. Shvetsov Design Bureau.
| M-71 | |
|---|---|
| Manufacturer | Plant number 19 ( Molotov ) |
| Years of production | 1939-1943 |
| Specifications | |
| Volume | 59.7 L |
| Power | depending on modification from 1500/2000 hp to 1850/2200 hp |
| Bore | 155.5 mm |
| Piston stroke | 174.5 mm |
| Number of cylinders | 18 |
| Compressor | Monitoring station |
| Turbocharging | depending on modification |
| Fuel system | carburetor |
| Cooling system | air cooling |
| Dimensions | |
| Diameter | 1380 mm |
| Dry weight | depending on modification |
Content
History
In 1933, the USSR entered into an agreement with Wright (USA) on the production of the Wright 9-cylinder American Wright Cyclone R-1820 engine. The development of the engine was entrusted to the new plant number 19 in Perm. By 1934, the Cyclone engine was no longer a novelty and a design department was set up to improve the engine at Plant No. 19 . A. D. Shvetsov was appointed the chief designer. The engine was constantly improved, more and more moving away from the prototype. Since 1937, the M-70 engine was developed - an 18-cylinder engine based on the M-25. A further development of the M-70, already based on the M-63 units, was the M-71 engine.
In 1939, 4 copies of the M-71 were made for bench testing. The engine refinement process took a long time. He passed the state tests in the fall of 1942, but did not start a large series.
Design
The M-71 engine was an 18- cylinder two - row star - shaped four - stroke piston air-cooled engine and was the “doubled” M-63.
The design was widely used nodes M-63. The crankshaft is made with two counterweights.
Modifications
The engine modifications were as follows.
- M-71 - the rated power was received - 1700 hp, the maximum - 2000 hp, while the design was supposed to be 1800/2000 hp The engine weight was 970 kg. (projected - 900 kg.)
- M-71 TK - option M-71 with turbochargers TK-M. Rated power - 1500 hp, maximum - 2000 hp
- M-71F - an option boosted by speed. The nominal power of 1850 hp was obtained, the maximum - 2200 hp Made in a small series.
- M-71F-TK - option M-71F with turbochargers TK-3.
Application
The M-71 engine was installed on experimental aircraft:
- I-185
- Su-6
- Su-8
- La 7
Literature
- Kotelnikov V. R. Domestic aircraft piston engines (1910-2009). - M .: Russian Foundation for the Promotion of Education and Science, 2010. - 504 p. - ISBN 978-5-91244-017-5 .