Flight investigation of performance of advance-ratio-4.0 propeller designed for Mach number of 0.82 to limit noise production showed efficiency of 68%; value compares with efficiency as much as 15% higher with same Mach number for propeller designed for optimum advance ratio of about 3.0. (see also NACA -- Tech Note n 4389).
Flight performance of transonic turbine-driven propeller designed for minimum noise
NASA -- Memo
1959
22 pages
Aufsatz (Zeitschrift)
Englisch
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Noise survey under static conditions of turbine-driven transonic propeller with advance ratio of 4.0
Engineering Index Backfile | 1959
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