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Showing results for "noise reduction"
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The Advanced Noise Control Fan shown here is located in NASA Glenn’s Aero-Acoustic Propulsion Laboratory. The 4-foot...
Modern jet engines are loud, but they used to be much louder. NASA’s Glenn Research Center has been at the forefront...
The black circle inside the helmet on the right contains some of the new elements of a noise reduction headphone...
The new Active Noise Reduction system plugs directly from the helmet to a panel inside the aircraft.
T-34 lead pilot Scott Howe said the new Active Noise Reduction system makes it easier to hear in the aircraft's loud...
XV-15 Rotor Installation in 80X120 ft. Wind Tunnel Test-0048. Noise Reduction
XV-15 Rotor Installation in 80X120 ft. Wind Tunnel Test-0048. Noise Reduction
XV-15 Rotor Installation in 80X120 ft. Wind Tunnel Test-0048. Noise Reduction
XV-15 Rotor Installation in 80X120 ft. Wind Tunnel Test-0048. Noise Reduction
XV-15 Rotor Installation in 80X120 ft. Wind Tunnel Test-0048. (microphone set up) Noise Reduction
XV-15 Rotor Installation in 80X120 ft. Wind Tunnel Test-0048. Noise Reduction
NORTHROP GRUMMAN NOISE REDUCTION TEST 1996 9X15 FOOT WIND TUNNEL ENTRY
Ultra High Bypass Integrated System Test Testing of an Ultra High Bypass Ratio Turbofan model in the 9-by 15-Foot...
The Aero-Acoustic Propulsion Laboratory (AAPL) photographed on October 24, 2024 as seen from above. This facility...
A Pratt and Whitney J57 engine is tested with a Greatex No.1 nozzle in the Altitude Wind Tunnel at the National...
The Dryden C-140 JetStar during testing of advanced propfan designs. Dryden conducted flight research in 1981-1982...
The Fan Noise Test Facility built at the Lewis Research Center to obtain far-field noise data for the National...
A Lockheed F-94B Starfire being equipped with an audio recording machine and sensors at the National Advisory...
Brent Miller, of the V/STOL and Noise Division at the National Aeronautics and Space Administration (NASA) Lewis...
Title: W-8 Fan Acoustic Casing Treatment Test on the Source Diagnostic Test Rotor Alone Hardware Program: Advanced...
National Aeronautics and Space Administration (NASA) Convair F-106B Delta Dart with a 32-spoke nozzle installed on...
A refanned Pratt and Whitney JT-8D-109 turbofan engine installed in Cell 4 of the Propulsion Systems Laboratory at...
Engineer Frank Kutina and a National Aeronautics and Space Administration (NASA) mechanic examine the setup of an...
This figure represents the 1,000th near-Earth asteroid (NEA) to be detected by planetary radar since 1968. Being...