Shvetsov ASh-2

ASh-2
Type	Radial engine
National origin	Soviet Union
Manufacturer	Shvetsov OKB-19 in Perm'
First run	1946
Developed from	Shvetsov ASh-82

The Shvetsov ASh-2 was a 28-cylinder, air-cooled, radial aircraft engine designed in the Soviet Union in the late 1940s. It was inferior to the Dobrynin VD-4K engine and did not enter production. One of the problems was air-cooling which ate up to 50% of the total engine power at 15000 meters. In contrast, liquid-cooled VD-4K required only 5% of power for cooling at the same altitude.

Specifications (ASh-2)

Data from Kotelnikov, p. 252

General characteristics

Type: 28-cylinder, 4-row radial engine
Bore: 155.5 mm (6.122 in)
Stroke: 155.0 mm (6.102 in)
Displacement: 82.4 L (5,028 cu in)
Dry weight: 1,850 kg (4,078 lbs)

Components

Supercharger: single-stage, single-speed geared supercharger
Cooling system: Air-cooled

Performance

Power output: 3,500 horsepower (2,600 kW)

References

Notes

Bibliography

Kotelnikov, Vladimir (2005). Russian Piston Aero Engines. Ramsbury, Marlborough: Crowood Press. ISBN 1-86126-702-9.

Aviadvigatel, Soloviev and Shvetsov aero engines
Gas turbines	D-20 D-25 D-30 PD-14 PS-12 PS-30 PS-90
Radial engines	ASh-2 ASh-21 ASh-62 ASh-73 ASh-82 M-11 M-22 M-25 M-63 M-64 M-70 M-71 M-72 M-80 M-81

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