Oversight Hearing on Noise Control Act: Hearing Before the Subcommittee on Aviation of the Committee on Commerce, United States Senate, Ninety-third Congress, First Session ...U.S. Government Printing Office, 1973 - 183 pages |
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Page 83
... acoustically treated nacelles . We will conduct this demonstra- tion at Dulles International Airport on May 7 and we will have a series of flybys by treated aircraft and the standard aircraft and we will provide you with a formal ...
... acoustically treated nacelles . We will conduct this demonstra- tion at Dulles International Airport on May 7 and we will have a series of flybys by treated aircraft and the standard aircraft and we will provide you with a formal ...
Page 99
... acoustically treated nacelles , re - fan engines , and a new " quiet " engine alternative were discussed within the context of the extreme so- lutions to the problem . The types of data both of the financial nature and de- mographic ...
... acoustically treated nacelles , re - fan engines , and a new " quiet " engine alternative were discussed within the context of the extreme so- lutions to the problem . The types of data both of the financial nature and de- mographic ...
Page 146
... acoustically absorbent . This suppression technique is often referred to as SAM ( sound absorbent material ) . Noise reductions as high as 10 to 15 EPNdB were obtained under approach conditions in these flight programs . There was a ...
... acoustically absorbent . This suppression technique is often referred to as SAM ( sound absorbent material ) . Noise reductions as high as 10 to 15 EPNdB were obtained under approach conditions in these flight programs . There was a ...
Page 159
... acoustically lined ejector shroud , in combination with an acoustically treated , ringed inlet to suppress forward - radiated fan noise , and fan duct treatment to reduce aft - radiated fan noise . The objective was a balanced design ...
... acoustically lined ejector shroud , in combination with an acoustically treated , ringed inlet to suppress forward - radiated fan noise , and fan duct treatment to reduce aft - radiated fan noise . The objective was a balanced design ...
Page 163
... acoustically treated nacelle is predicted to result in the noise numbers and performance values shown in Figure 15 . Although the extra noise reduction , relative to the FAA fan treatment , is considerable , the airplane is seen to ...
... acoustically treated nacelle is predicted to result in the noise numbers and performance values shown in Figure 15 . Although the extra noise reduction , relative to the FAA fan treatment , is considerable , the airplane is seen to ...
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Common terms and phrases
acoustically action Administrator air transportation aircraft noise airlines airplane airport noise airport operators Angeles International Airport approach Boeing California carriers certified Chairman commerce committee Congress consultation cost Court criteria decibels Department of Airports effective Environmental EPNdB FAA's FADEM Federal Aviation Federal Aviation Administration Figure fleet noise level flight test Front Fan funds going health and welfare hearing Highline School District industry Inglewood inlet installation jet aircraft jet noise JT3D JT8D JT8D engines legislation Mayor MERGELL meet MEYER million MITCHELTREE MOORE NASA noise abatement Noise Control Act noise emission noise pollution noise problem noise reduction noise regulations noise standards noise suppression port procedures QUIET NACELLE quieter refanned requirements runway RUSSELL Senator CANNON Senator TUNNEY SKULLY splitter Stat statement subsection takeoff Task Group Thank tion Treated Nacelle Washington zoning