In-Flight Rotorcraft Acoustics Program
In-Flight Rotorcraft Acoustics Program
- Neue Suche nach: R. L. Peterson
- Neue Suche nach: R. L. Peterson
A key part of NASA's aeronautics research is reducing noise to make helicopters and tiltrotors more acceptable to the public. The objective of the In-Flight Rotorcraft Acoustics Program (IRAP) is to acquire rotorcraft noise data in flight for comparison to wind tunnel data. The type of noise of concern is 'blade-vortex-interaction', or BVI, noise. Microphones on the wing tips and tail fin of the quiet NASA YO-3A Acoustics Research Aircraft measure BVI noise while the YO-3A descends in close formation with the helicopter or tiltrotor emitting the noise.The data acquired through IRAP is needed to validate wind-tunnel test results, or, where the results cannot be validated, to provide researchers with clues as to how to improve testing methods.
Dokumentinformationen
In-Flight Rotorcraft Acoustics Program
1996
26 pages
Report
Keine Angabe
Englisch
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