Main sources of noise; retarded tip speed can only be brought about by slower turning engines or engine propeller reduction gearing, multi-bladed propellers, wider blades, or combination of any of these; cabin noises and their reduction; tabular data on overall sound level measurements of Stinson Voyager 150 and comparison of noise levels in DC-3 and Stinson Voyager. Based on two papers at Annual Meeting. (see also Western Flying v 27 n 2 Feb 1947 p 26, 40, 42, 44)
Reduce noise nuisance in personal planes
Soc Automotive Engrs -- J
Society of Automotive Engineers -- Journal ; 55 , n 4
1947
4 pages
Article (Journal)
English
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