Honeywell is “in discussions with a Russian firm regarding the potential use of our TPE331-12U engine” in Antonov An-2 aircraft, the U.S. manufacturer tells AviationWeek. Honeywell would not provide more details, but the Siberian Aeronautical Research Institute in a press release earlier this year said it tested the biplane with the Honeywell turboprop engine and a Hartzell HC-B5MP five-bladed propeller. Hartzell is based in Piqua, Ohio. “The first test flights showed that ...


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