Noise measurement and analysis program carried out on military version H-21C helicopter to determine primary noise sources and transmission paths for noise inside passenger cabin; effectiveness of acoustic designs in commercial aircraft illustrated quantitatively.
Acoustic design for transport helicopters
Am Helicopter Soc -- J
American Helicopter Society -- Journal ; 2 , n 4
1957
8 pages
Article (Journal)
English
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Preliminary Design of Transport Helicopters
Online Contents | 2003
|Preliminary design of transport helicopters
Tema Archive | 2003
|Engineering Index Backfile | 1952
|Acoustical design for transport helicopters
Engineering Index Backfile | 1959
|Online Contents | 1997
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