Factors affecting jet driven rotor performance; it is shown that relatively high tip speeds required in order to realize reasonable jet efficiency results in considerable reduction in aerodynamic efficiency of rotor; weight saving possible with such drives, and their simplicity, may in certain cases offset their low aerodynamic and propulsive efficiencies; rough comparative performance and weight estimate made between conventional and jet driven helicopter.
Jet propulsion applied to helicopter rotors
J Aeronautical Sciences
Journal of the Aeronautical Sciences ; 13 , n 12
1946
7 pages
Article (Journal)
English
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