The ai-20s drove four-bladed variable pitch reversible props with a diameter of 4. 5 meters (14 feet 9 inches), featuring prominent propeller spinners, and hydraulic actuation for prop pitch. The ivchenko ai-20 is a soviet turboprop engine developed by the ivchenko design bureau in the 1950s. It has been built in large numbers, serving as the powerplant for both the antonov an-12 transport Ò€¦

Ai-20 engines have a high margin of gas-dynamic stability in all modes for all Ò€¦ The ivchenko ai-20 is a soviet turboprop engine developed by the ivchenko design bureau in the 1950s. It has been built in large numbers, serving as the powerplant for both the antonov an-12 transport Ò€¦ The manual gives basic engine specifications, characteristics, and design features; Includes descriptions of the oil system, fuel system, and electrical and automatic starting equipment of the engine; It was designed as a prospective powerplant for the new, large ilyushin il-18 airliner and the antonov an-10, to be powered by four turboprops, in competition with the kuznetsov nk-4 engines.

Includes descriptions of the oil system, fuel system, and electrical and automatic starting equipment of the engine; It was designed as a prospective powerplant for the new, large ilyushin il-18 airliner and the antonov an-10, to be powered by four turboprops, in competition with the kuznetsov nk-4 engines.