The Effect of Compressibility on Eight Full-Scale Propellers Operating in the Take-Off and Climbing Range (open access)

The Effect of Compressibility on Eight Full-Scale Propellers Operating in the Take-Off and Climbing Range

"Tests were made of eight full-scale propellers of different shape at various tip speeds up to about 1,000 feet per second. The range of blade-angle settings investigated was from 10 degrees to 30 degrees at the 0.75 radius. The results indicate that a loss in propulsive efficiency occurred at tip speeds from 0.5 to 0.7 the velocity of sound for the take-off and climbing conditions" (p. 517).
Date: May 18, 1938
Creator: Biermann, David & Hartman, Edwin P.
System: The UNT Digital Library