Experimental study of intensity of sound in relation to aerodynamical properties of three models of airplane propellers, leading to derivation of empirical formulas connecting intensity of sound, pitch of propeller and propeller speed.
On relation between performance and loudness of sound of airscrew
Tokyo Imperial Univ -- Aeronautical Research Inst -- Report
1936
28 pages
Article (Journal)
English
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Airscrew performance estimation
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