Can I read Development of cowling for long-nose air-cooled engine in the NACA full-scale wind tunnel on EtoBox?

Development of cowling for long-nose air-cooled engine in the NACA full-scale wind tunnel by Silverstein, Abe. is a nonfiction available to read on EtoBox.

What is Development of cowling for long-nose air-cooled engine in the NACA full-scale wind tunnel about?

Introduction: An investigation of cowlings for long-nose radial engines has been made on the Curtiss XP-42 airplane in the NACA full-scale wind tunnel. The XP-42 airplane is provided with a Pratt & Whitney R-1830-31 engine, which has a propeller shaft and bearing housing that is 20 inches longer than the standard short-nose engine of the same series. This forward extension of the propeller enables the use of fuselage nose shapes of higher fineness ratio than are possible with the blunter short-nose engine. In the original Curtiss Company design of the XP-42 airplane the pointed fuselage nose was used (fig. 1) and sharp-edge scoops were added at the bottom and top of the cowling for the engine-cooling and the carburetor-air inlets. Flight tests showed the high speed of the airplane to be comparable with, but not superior to, that of the P-36, which is a similar airplane with a short-nose engine and a conventional NACA cowling installation. Inspection of the cowling scoops disclosed sources of drag, the existence of which were substantiated by preliminary NACA flight measurements. These tests showed that the engine cooling air entered the lower scoop at about half the airplane flight

Who reads Development of cowling for long-nose air-cooled engine in the NACA full-scale wind tunnel?

Author

Silverstein, Abe.

Publisher

Langley Memorial Aeronautical Laboratory, 1941.

Published

1941

Language

EN

Category

nonfiction