Add to ORKGA 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
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A cooperative flight test by NASA, Bell Helicopter and the U.S. Army to characterize the steady stat...
acoustics and measure the maneuver noise of a Bell Helicopter 430 aircraft was accomplished. The tes...
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Two acoustic flight tests have been conducted on a remote test range at Eglin Air Force Base in the ...
The Acoustical Testing Laboratory (ATL) consists of a 27- by 23- by 20-ft (height) convertible hemi/...
As part of the Stratospheric Observatory for Infrared Astronomy program, a 747SP airplane was modifi...
To evaluate the noise reduction potential for tiltrotor aircraft, a series of three XV- 15 acoustic ...
A cooperative flight test by NASA, Bell Helicopter and the U.S. Army to characterize the steady stat...
acoustics and measure the maneuver noise of a Bell Helicopter 430 aircraft was accomplished. The tes...
The Tiltrotor Test Rig (TTR) with the Bell 699 Rotor was tested in the National Full-Scale Aerodynam...
A special acoustic flight test program was performed on the Bell 206B helicopter outfitted with an i...
The Tiltrotor Test Rig (TTR) provides new proprotor testing capabilities to the National Aeronautics...
FA353/A3008The U.S. Department of Transportation, Federal Aviation Administration, (U.S.DOT/FAA),alo...
A Williams International FJ44-3A 3000-lb thrust class turbofan engine was tested in the NASA Glenn R...
This paper presents the test design, instrumentation set-up, data acquisition, and the results of an...
Helicopter slung-load operations are common in both military and civil contexts. Helicopters and loa...
This report summarizes results of the Hybrid Wing Body (HWB) N2A-EXTE model aeroacoustic test. The N...
The Boeing Company, Mesa Arizona, has been developing smart material actuated rotor technology (SMAR...
Two acoustic flight tests have been conducted on a remote test range at Eglin Air Force Base in the ...
The Acoustical Testing Laboratory (ATL) consists of a 27- by 23- by 20-ft (height) convertible hemi/...
As part of the Stratospheric Observatory for Infrared Astronomy program, a 747SP airplane was modifi...
To evaluate the noise reduction potential for tiltrotor aircraft, a series of three XV- 15 acoustic ...