The drag of a Sperry Messenger airplane with the wings removed, and also the drag of its various component parts, was measured in the 20-foot air stream of the N.A.C.A. propeller research tunnel at air speeds from 50 to 100 m.p.h. It was found that the three-cylinder radial air-cooled engine nearly doubled the drag of the bare fuselage, and the drag of the landing gear was about the same as that of the fuselage and engine combined.
Full Scale Drag Tests on Various Parts of Sperry Messenger Airplane
1928-01-01
Sonstige
Keine Angabe
Englisch
Drag testing. Full scale drag tests on various parts of sperry messenger airplane
Engineering Index Backfile | 1928
|Engineering Index Backfile | 1920
The sperry "messenger" biplane
Engineering Index Backfile | 1921
|The air forces on a model of the sperry messenger airplane without propeller
Engineering Index Backfile | 1925
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