Analytical model predicts noise levels inside propeller-driven aircraft during cruise at mach 0.8. Double wall sidewalls minimize interior noise and weight. Model applied to three aircraft with fuselages of different size (wide-body, narrow-body, and small-diameter) to determine noise reductions required to achieve A-weighted sound level not to exceed 80 dB.
Noise Control in Propeller-Driven Aircraft
NASA Tech Briefs ; 7
1983-08-01
Miscellaneous
No indication
English
Propeller Driven Aircraft Cabin Noise Reduction
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