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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
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
Helicopter Noise Exposure Curves for Use in Environmental Impact Assessment
Noise Measurement Flight Test: Data/Analyses, Hughes 500 D/E Helicopter