A licensed version of the Il-10 aircraft engine. A piston V-engine equipped with a supercharger. This is a version of the Soviet AM-42 engine, intended for the Il-10 ground-attack aircraft produced under licence at the Avia works in Czechoslovakia for the licensed version of the Il-10, designated Avia B.33. Czechoslovak-produced engines had a poor reputation among users due to their high failure rate.
| Configuration | 12-cylinder V |
| Cooling | water |
| Compression ratio | 5.5 |
| Displacement | 46.6 l |
| Weight | 1030 kg |
| Maximum power | 2000 hp at 1500 rpm |
| Nominal power | 1750 hp at 1410 rpm |
