Turboprop Contra-rotating propeller Contra-rotating Ducted fan Geared turbofan Comparable engines Europrop TP400 General Electric GE-36 UDF Kuznetsov NK-12 Kuznetsov NK-93 Metrovick F.5 Pratt & Whitney/Allison 578-DX Progress D-27 Progress D-236 Rolls-Royce RB3011 Related lists List of aircraft engines