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Maneuver Acoustic Flight Test of the Bell 430 Helicopter Data Report (2014)

Watts, Michael E. ; Snider, Royce ; Smith, Charles D. ; [et al.]

In: CASI

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Publication Date: 2019-07-12

Description: A cooperative ight test by NASA, Bell Helicopter and the U.S. Army to characterize the steady state acoustics and measure the maneuver noise of a Bell Helicopter 430 aircraft was accomplished. The test occurred during June/July 2011 at Eglin Air Force Base, Florida. This test gathered a total of 410 test points over 10 test days and compiled an extensive database of dynamic maneuver measurements. Three microphone arrays with up to 31 microphon. es in each were used to acquire acoustic data. Aircraft data included Differential Global Positioning System, aircraft state and rotor state information. This paper provides an overview of the test and documents the data acquired.

Keywords: Acoustics

Type: NASA/TM-2014-218266 , NF1676L-18177 , L-20367

Format: application/pdf

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