Shvetsov ASh-62

Shvetsov ASh-62

__NOTOC__The Shvetsov ASh-62 (designated M-62 before 1941) is a nine-cylinder, air-cooled, radial aircraft engine produced in the Soviet Union. It was a development of the Wright Cyclone that had been built there under licence as the Shvetsov M-25, the main improvements including a two-stage supercharger and a more efficient induction system. Power was increased from the Cyclone's 775 hp to 1,000 hp. First run in 1937, licenced versions are still in production by WSK "PZL-Kalisz" in Poland as the ASz-62 (as of 2007). The Ash-62 was also produced in China. It is estimated that 40,361 were produced in the USSR.

Polish-built ASz-62IR are compatible with FAR-33 requirements. Further development in Poland are K9-AA, K9-BA and K9-BB engines, with take-off power 1178 hp (860 kW), indicated power 698 kW. The K9-BA engine might be fitted to DC-3 Dakota.

M-63 was an improved version of M-62 with power output increased to 821 kW (1,100 hp) at 2,300 rpm for takeoff and 671 kW (900 hp) at 2,200 rpm at 4,500 m (14,764 ft) thanks to a greater compression ratio of 7.2:1 and a higher redline.

pecifications (M-62)

pistonspecs

ref= [Liss 1966, p. 9]
type=Nine-cylinder single-row supercharged air-cooled radial engine
bore=156 mm (6.12 in)
stroke=175 mm (6.87 in)
displacement=29.8 l (1,819 in³)
length=
diameter=
width=
height=
weight=
valvetrain=Overhead valves
supercharger=Two-speed centrifugal type supercharger
turbocharger=
fuelsystem=Carburetor
fueltype=92 octane rating gasoline
oilsystem=
coolingsystem=Air-cooled
power=
* 746 kW (1,000 hp) at 2,200 rpm for takeoff
* 634 kW (850 hp) at 2,100 rpm at 4,200 m (13,780 ft)
specpower=25.03 kW/l (0.55 hp/in³)
compression=6.4:1
fuelcon=
specfuelcon=469 g/(kW•h) (0.77 lb/(hp•h))
oilcon=
power/weight=4.84 kW/kg (2.94 hp/lb)

Applications

* Antonov An-2
* Antonov An-6
* Lisunov Li-2
* Neman R-10
* Polikarpov I-153
* Polikarpov I-16
* PZL-106 Kruk (some variants)
* PZL-Mielec M-18 Dromader
* PZL M-24 Dromader Super (K-9AA)
* Sukhoi Su-2
* Sukhoi Su-12

References

*
* [http://www.ctrl-c.liu.se/misc/RAM/eng_ash-62.html Russian Aviation Museum]
* [http://www.aeronautics.ru/archive/reference/Piston_Engines/Poland.htm Venik's Aviation]
*
*

External links

* [http://www.wsk.kalisz.pl/ Producer's page WSK "PZL-Kalisz"]


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