Full-Scale-Tunnel Investigation of a Multiengine Pusher-Propeller Installation
Description:
Report presenting an investigation of propellers designed specifically for pusher operation behind fixed contravanes on a large-scale model of a four-engine airplane. In the test, the wing trailing edge was twisted to serve as a contravane and to produce the rotating inflow required for optimum propulsive efficiency. Results indicated that gains in efficiency of about 3.5 percent at a blade angle of 40 degrees can be obtained by the use of contravanes with specifically designed pusher propeller…
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Date:
November 1942
Creator:
Wilson, Herbert A., Jr.
Item Type:
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Report