Acoustic test results are presented for a full-scale counterrotation demonstrator engine installed on a Boeing 727 aircraft in place of the right-side turbofan engine. Sideline acoustic data were acquired from a Learjet chase aircraft instrumented with noise and wing-tip flush mount microphones. Data are presented for a 47.2-m sideline at several engine operating conditions and flight Mach numbers of 0.50 and 0.72.
Cruise noise of an advanced counterrotation turboprop measured from an adjacent aircraft
NOISE-CON 88 ; 1988 ; West Lafayette, IN, United States
1988-01-01
Conference paper
No indication
English
Measured far-field flight noise of a counterrotation turboprop at cruise conditions
Tema Archive | 1990
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