Analysis of Helicopter Noise Data Using International Helicopter Noise Certification Procedures
Analysis of Helicopter Noise Data Using International Helicopter Noise Certification Procedures
Helicopter Noise Exposure Curves for Use in Environmental Impact Assessment
Noise Measurement Flight Test for Boeing Vertol 234/CH 47-D Helicopter: Data/Analyses
Noise Measurement Flight Test: Data/Analyses, Sikorsky S-76A Helicopter
Noise Measurement Flight Test: Data/Analyses Aerospatiale AS 350D AStar Helicopter