Comparative study on ground runup noise and takeoff flyover noise made on turbojet engine equipped with noise suppressor and unsuppressed turbofan engine; sound power levels at various frequencies, perceived noise levels and sound directivity are investigated, as well as cabin interior noise and speech interference levels during actual flight.
Noise levels of turbojet- and turbofan-powered aircraft
Sound
Sound ; 2 , n 5
1963
6 pages
Aufsatz (Zeitschrift)
Englisch
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