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Analysis of Helicopter Noise Data Using International Helicopter Noise Certification Procedures
Analysis of Helicopter Noise Data Using International Helicopter Noise Certification Procedures
Helicopter Noise Contour Development Techniques and Directivity Analysis
Noise Measurement Flight Test: Data/Analyses Bell 222 Twin Jet Helicopter
Noise Measurement Flight Test for Aerospatiale AS 355F TwinStar Helicopter: Data/Analyses
Noise Measurement Flight Test for Boeing Vertol 234/CH 47-D Helicopter: Data/Analyses
Noise Measurement Flight Test: Data/Analyses, Sikorsky S-76A Helicopter
Helicopter Noise Definition Report: UH-60A, S-76, A-109, 206-L
Helicopter Noise Definition Report UH-60A, S-76, A-109, 206-L
Noise Measurement Flight Test: Data/Analyses Aerospatiale AS 350D AStar Helicopter
A Survey of Helicopter and Ambient Urban Noise Levels in Phoenix, Arizona
Noise Measurement Flight Test: Data/Analyses Aerospatiale SA 365N Dauphin 2 Helicopter
Helicopter Noise Exposure Curves for Use in Environmental Impact Assessment
Noise Measurement Flight Test: Data/Analyses, Hughes 500 D/E Helicopter