The Duchess is a light twin engine aircraft powered by two Avco Lycoming engines, each rated at 180 horsepower at 2700 RPM. The aircraft is equipped with two Hartzell, constant speed, full feathering, two bladed propellers that rotate in opposite directions to minimize asymmetric power in the event of engine failure. The aircraft is used to demonstrate the single engine characteristics of a light twin engine aircraft.

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Temp Mojave, Ca.
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National Test Pilot School
P.O. Box 658
Mojave, CA 93502-0658 USA
Phone: 661-824-2977
Fax: 661-824-2943

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