The М-62 (ASh-62) is a piston-type nine-cylinder single-row radial engine developed in the Experimental Design Bureau named after A.D. Shvetsov in 1938 for transport and civil aviation.
Till now, it is service. It powers the An-2. It has been produced for more than 50 years (serial production). It is the modification of the M-25 (initially designated M-62IR, from 1944 – Ash-62IR).
Later on, cylinder-piston engine group was used in the double-row engines ASh-73 for the aircrafts Tu-4 and Be-6. A group of mass production aircrafts, i.e. Lа-5, Lа-7, Tu-2, Il-12, Il-14, is powered with the advanced double-row Ash-82 engine (reduced piston-stroke, higher aerodynamic parameters).
Capacity, l 29.87
Compression Ratio 6.4
Motor Weight, kg 520
Power (takeoff), hp 1000
Rotation (takeoff), rpm 2200
Ground Power, hp 830
Altitude Power, hp 800
Engine Specific Weight, kg 0.626
Power-to-Volume Ratio, hp/l 79