Advances in field of noise control, and design considerations involved in treatment of new generation of turbine powered helicopters as exemplified by VERTOL 107, which provided data and case history described; acoustic test program; data analysis; techniques used relating to fuselage structure, cabin enclosure, windows, and cockpit treatment.
New techniques in helicopter noise reduction
Am Helicopter Soc -- J
American Helicopter Society -- Journal ; 5 , n 1
1960
7 pages
Article (Journal)
English
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