Accession Number : AD0427666


Title :   NOISE AND ITS EFFECT ON AIRCRAFT OPERATION,


Corporate Author : ADVISORY GROUP FOR AERONAUTICAL RESEARCH AND DEVELOPMENT PARIS (FRANCE)


Personal Author(s) : Coles, G M


Report Date : Jan 1963


Pagination or Media Count : 19


Abstract : The noise generated by a jet engine can be considered as being made up of two main forms: that generated externally (e.g. jet noise), and that generated internally (e.g. compressor noise). In the in-flight operation of a particular aircraft the three factors most significantly affecting community noise level are altitude, airspeed and power setting. As each of these factors affects each form of noise generatio in a different way, a considerable investigation of possible take-off techniques must be carried out in order to achieve the maximum community benefit from special procedures. Operational techniques aimed at reducing community noise levels consist of flying the aircraft such that the most favourable combination of airspeed, altitude and power setting is achieved. (Author)


Descriptors :   *JET ENGINE NOISE , *JET TRANSPORT AIRCRAFT , REDUCTION , FLIGHT PATHS , LOW ALTITUDE , AIRSPEED , TAKEOFF , CLIMBING , TOLERANCES(PHYSIOLOGY) , ACCELERATION , WEIGHT , DISTRIBUTION , AIRCRAFT LANDINGS , COMPRESSOR NOISE , OPERATION , AIRCRAFT NOISE , PUBLIC OPINION


Distribution Statement : APPROVED FOR PUBLIC RELEASE