NASA NTRS · 19910000400
Research In Helicopter Noise
Abstract
Progress in aeroacoustical theory and experiments reviewed. Report summarizes continuing U.S. Army programs of research into causes of noise generated by helicopters. Topics of study include high-speed impulsive noise, blade/vortex-interaction noise, and low-frequency harmonic noise.
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Yu, Yung H., Schmitz, Frederic H., Morse, Andrew H.. 1991-08-01. Research In Helicopter Noise. https://ntrs.nasa.gov/citations/19910000400
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