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Pages 14-15

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From page 14...
... 14 The literature review started with the review that had already been completed for ACRP S02-48 ("Assessing Community Annoyance of Helicopter Noise") and expanded to cover documents identified in the references to that document and documents recommended by panel members, recommended by surveyed airports, and suggested by the authors of this report.
From page 15...
... 15 ate for predicting this annoyance; others found that conventional A-weighted noise measurements suffice for predicting the annoyance of helicopter noise. There were no studies done by countries, organizations, manufacturers, or communities that comprehensively examined the rates of reported high annoyance with noise exposure for a variety of helicopter types.

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