Recent Research in Rotor-Noise Reduction

690684

02/01/1969

Event
Aeronautic and Space Engineering and Manufacturing Meeting
Authors Abstract
Content
Helicopter design trends towards increased blade loadings and higher tip speeds have resulted in generation of higher levels of rotor noise. This paper describes experimental programs to establish operating limits which, if observed, will result in rotary-wing aircraft with subjectively acceptable acoustical signatures.
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DOI
https://doi.org/10.4271/690684
Pages
5
Citation
Sternfeld, H., and Spencer, R., "Recent Research in Rotor-Noise Reduction," SAE Technical Paper 690684, 1969, https://doi.org/10.4271/690684.
Additional Details
Publisher
Published
Feb 1, 1969
Product Code
690684
Content Type
Technical Paper
Language
English