The rotorcraft industry, universities, and government research labs have actively engaged in research activities since the late 1960’s to understand rotorcraft noise generation mechanisms and mitigation techniques. Both first principles and semi-empirical prediction tools have been developed as a result of this research. This project will leverage that research and use tools developed by the research team to develop noise abatement flight procedures and a flight test plan to evaluate the effectiveness to those procedures. The noise prediction system will also be used to demonstrate its utility in predicting the noise from advance rotorcraft features and concepts.
United States. Department of Transportation. Federal Aviation Administration
2004-12-31
Abstract:
In response to public concerns about nonmilitary helicopter noise impact on densely populatedcommunities, the United States Congress directed the Secr...
This document contains the instructions to execute the Heliport Noise Model (HNM), Version 1. HNM Version 1 is a computer tool for determining the tot...
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