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Helicopter noise reduction
Results: 23

#	Item
11	Flight Test of Active Gear-Mesh Noise Control on the S-76 Aircraft Thomas A. Millott Sr. Acoustics Engineer William A. Welsh Sr. Technical Engineer Add to Reading List Source URL: www.cds.caltech.edu Language: English - Date: 2000-11-29 13:19:25 Technology Active noise control Sikorsky S-92 Microphone Flight test Helicopter Hardware-in-the-loop simulation Aircraft flight control system Aircraft Noise reduction Aviation Audio engineering
12	Microsoft Word - tp09-erf-text.doc - pdfMachine from Broadgun Software, http://pdfmachine.com, a great PDF writer utility! Add to Reading List Source URL: rotorcraft.arc.nasa.gov Language: English - Date: 2009-08-04 09:55:30 Noise reduction Helicopter rotor Helicopter Swashplate Electric motor Active noise control Vibration Aircraft Aerospace engineering Electromagnetism
13	Helicopter Gear-Mesh ANC Concept Demonstration Douglas G. MacMartin1, Mark W. Davis1, Charles A. Yoerkie, Jr.2, William A. Welsh2 1 United Technologies Research Center, 411 Silver Lane, East Hartford CT 06108, USA Add to Reading List Source URL: www.cds.caltech.edu Language: English - Date: 2000-11-29 13:18:20 Electromagnetism Microphone Piezoelectricity Control theory Vibration Signal processing Physics Noise reduction Audio engineering Active noise control
14	10 HELICOPTERNOISE RESEARCHAT THE LANGLEYV/STOL TUNNEL Structures Laboratory, Add to Reading List Source URL: crgis.ndc.nasa.gov Language: English - Date: 2009-11-10 16:55:16 Fluid dynamics Helicopter Disk loading Turbine Stall Wind tunnel Helicopter noise reduction Aerospace engineering Aerodynamics Aviation
15	United States Department of Agriculture Forest Service Aviation Safety Alert No[removed]August 24, 2004 Add to Reading List Source URL: www.fs.fed.us Language: English - Date: 2004-08-25 15:29:40 Tail rotor Aerodynamics Helicopter noise reduction Coaxial rotors Aerospace engineering Aviation Helicopter
16	AMA: 549/11 Date: September 26, 1988 Subject: AmateurBuilt Aircraft Noise Emission Control 1. Purpose. Add to Reading List Source URL: www.tc.gc.ca Language: English - Date: 2010-05-03 13:40:19 Noise reduction Health Propellers Noise Aircraft engines Aircraft noise Helicopter rotor Hush kit Helicopter Noise pollution Aviation Aircraft
17	PDF Document Add to Reading List Source URL: www.tc.gc.ca Language: English - Date: 2010-05-03 13:40:18 Aircraft Transport Propellers Noise Audio engineering Aircraft noise Helicopter rotor Helicopter Hush kit Noise pollution Noise reduction Aviation
18	Fact �� National Aeronautics and Space Administration �� Hampton, Virginia[removed] Add to Reading List Source URL: www.nasa.gov Language: English - Date: 2013-06-26 22:07:44 Waves Aircraft noise Noise mitigation Airport Noise Jet noise Helicopter noise reduction Roadway noise Noise pollution Environment Sound
19	PDF Document Add to Reading List Source URL: tc.gc.ca Language: English - Date: 2010-05-03 13:40:18 Aircraft Transport Propellers Noise Audio engineering Aircraft noise Helicopter rotor Helicopter Hush kit Noise pollution Noise reduction Aviation
20	AMA: 549/11 Date: September 26, 1988 Subject: AmateurBuilt Aircraft Noise Emission Control 1. Purpose. Add to Reading List Source URL: tc.gc.ca Language: English - Date: 2010-05-03 13:40:19 Noise reduction Health Propellers Noise Aircraft engines Aircraft noise Helicopter rotor Hush kit Helicopter Noise pollution Aviation Aircraft

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