This report is an extension of NACA-TR-168 and has been prepared for the National Advisory Committee for Aeronautics to show the relative values of various direct and geared drives. It is well known that in general a geared-down propeller has higher efficiency than a direct-drive propeller, but the literature on this subject does not present the data in such form that the aeronautical engineer can readily visualize the effect of gearing. This report has been prepared to show the actual net gain or loss in maximum efficiency due to the use of various modifications of the conventional two-bladed, direct-drive propeller. (author)
Relative efficiency of direct and geared drive propellers
1924-01-01
Miscellaneous
No indication
English
Relative efficiency of direct and geared drive propellers
TIBKAT | 1923
|Relative efficiency of direct and geared drive propellers
Engineering Index Backfile | 1923
|Geared down propellers and efficiency of commercial airplanes
Engineering Index Backfile | 1927
|Engineering Index Backfile | 1938
|Geared engines for airplanes antedate direct-drive types
Engineering Index Backfile | 1929
|