With exhaust manifolds and efficient soundproofing treatment there is reasonable prospect of recommended standard being achieved at normal cruising speeds; exhaust noise may still be most important in frequency range from 75 to 600 cps, but at higher frequencies aerodynamic noise may predominate. (See also Roy Aeronautical Soc -- J v 50 n 429 Sept 1946 p 639-63 (discussion) p 663-76; Mech World v 119 n 3097 May 10 1946 p 519-23)
Silencing of aircraft
Aeroplane
Aeroplane ; 70 , n 1821
1946
2 pages
Article (Journal)
English
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Engineering Index Backfile | 1933
|TIBKAT | 1933
|Engineering Index Backfile | 1946
|Department Highlights - Silencing aircraft
Online Contents | 2002