The Ivchenko-Progress AI-450S is a turboprop engine designed by Ivchenko-Progress and built by Motor Sich.

[citation needed] It is a two-shaft design with one gas generator shaft and one free turbine shaft.

The 450 hp AI-450S is used on the Diamond DA50-JP7, Bayraktar Akıncı UAV and Diamond Dart 450 and the 630 hp AI-450S-2 is used on the Evektor EV-55.

The price of an AI-450 engine is roughly $236,400.

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