Comparison of Three Exit-Area Control Devices on an N.A.C.A. Cowling, Special Report
Description:
"Adjustable cowling flaps, an adjustable-length cowling skirt, and a bottom opening with adjustable flap were tested as means of controlling the rate of cooling-air flow through an air-cooled radial-engine cowling. The devices were tested in the NACA 20-foot tunnel on a model wing-nacelle-propeller combination, through an airspeed range of 20 to 80 miles per hour, and with the propeller blade angle set 23 degrees at 0.75 of the tip radius. The resistance of the engine to air flow through the co…
more
Date:
May 1940
Creator:
McHugh, James G.
Item Type:
Refine your search to only
Report