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Tumansky M-87

1930s Soviet aircraft piston engine

Field	Value
name	M-87
engine_type	Radial aero engine
national_origin	Soviet Union
manufacturer	Tumansky
first_run	1938
developed_into	Tumansky M-88

The Tumansky M-87 was a Soviet air-cooled aircraft radial engine that was developed in the late 1930s. It was a development of their licensed Gnome-Rhone 14K engines that started with the M-85.

Development

In 1934, USSR licensed the French Gnome-Rhone 14K aircraft engine producing 800 hp (595 kW), which entered production as the M-85. The engine was subsequently modified to M-86 which produced 960 hp (715 kW) at takeoff thanks to increased supercharging and a higher compression ratio. The M-87 was created to further increase the power output. Cylinders and pistons were revised to increase the compression ratio and the supercharger was redesigned. The resulting engine had better high-altitude performance and entered production in 1938. However, the engine proved unreliable and suffered from failure of gears in the reduction gearbox. Later the M-88 was designed to address the shortcomings of the M-87. At first the M-88 was not a success, but the designers persisted, and the M-88 was made into a reliable and widely produced engine. The M-87 was used in Ilyushin Il-4 and Sukhoi Su-2 bombers, and the Polikarpov I-180 fighter.

Specifications (M-87)

and start a new, fully formatted line with -- |power/weight=1.1 kW/kg (0.8 hp/lb)

References

"DB-3". Airpages.ru.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

1930s-aircraft-piston-engines aircraft-air-cooled-radial-piston-engines tumansky-aircraft-engines

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