F-0073-2017-12286: Atmospheric Absorption Model Effects on Civil Rotorcraft Noise Certification EPNL Values - Technical Paper

Event: Vertical Flight Society 73rd Annual Forum and Technology Display

Authors

Benjamin Goldman

Bell Helicopter Textron

Abstract

Content: Different atmospheric absorption models are applied to noise certification measurements for the Bell Models 429 and 505. It is shown that the latest atmospheric absorption model proposed for use in rotorcraft noise certification, SAE ARP5534, yields EPNL levels up to 1.4 EPNdB higher than the current model, SAE ARP866A.

Meta Tags

Topics: Rotary-wing aircraft
Certification
Noise
Measurements

Affiliated or Co-Author: Bell Helicopter Textron

Details

DOI: https://doi.org/10.4050/F-0073-2017-12286

Citation: Goldman, B., "Atmospheric Absorption Model Effects on Civil Rotorcraft Noise Certification EPNL Values," Vertical Flight Society 73rd Annual Forum and Technology Display, Fort Worth, Texas, May 9, 2017, https://doi.org/10.4050/F-0073-2017-12286.

Additional Details

Publisher: The Vertical Flight Society

Published: 5/9/2017

Product Code: F-0073-2017-12286

Content Type: Technical Paper

Language: English