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ARP1279 - Standard Indoor Method of Collection and Presentation of the Bare Turboshaft Engine Noise Data, for Use in Helicopter Installations

Details
Document Number: ARP1279
Revision Number:
Title
Standard Indoor Method of Collection and Presentation of the Bare Turboshaft Engine Noise Data, for Use in Helicopter Installations
Scope
This Aerospace Recommended Practice (ARP) outlines a recommended test procedure, data collection and preparation method for indoor noise tests of a bare turboshaft engine suitable for helicopter installations. It should be recognized that free field measurements are preferable.
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