Pressure available for cooling with cowling flaps
Description:
Report presents the results of a full-scale investigation conducted in the NACA 20-foot tunnel to determine the pressure difference available for cooling with cowling flaps. The flaps were applied to an exit slot of smooth contour at 0 degree flap angle. Flap angles of 0 degree, 15 degrees, and 30 degrees were tested. Two propellers were used; propeller c which has conventional round blade shanks and propeller f which has airfoil sections extending closer to the hub. The pressure available for …
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Date:
May 9, 1940
Creator:
Stickle, George W.; Naiman, Irven & Crigler, John L.
Partner:
UNT Libraries Government Documents Department