Accession Number : ADA181052

Title :   Environmental Noise Assessment for Military Aircraft Training Routes. Volume 1. SAC (Strategic Air Command) Low-Level Routes.

Descriptive Note : Final rept. Apr-Nov 86,

Corporate Author : WYLE LABS ARLINGTON VA

Personal Author(s) : Plotkin,Kenneth J ; Croughwell,Ernest P

PDF Url : ADA181052

Report Date : Apr 1987

Pagination or Media Count : 65

Abstract : A series of noise measurements was conducted underneath a low-altitude military training route utilized by SAC aircraft. The primary measurement system consisted of 17 automatic noise monitors deployed on a two-mile array across the route. These recorded A-weighted noise metrics and provided identification of the lateral position of each aircraft. Data were obtained for 48 aircraft over a 15-day period. It was found that maximum A-weighted sound levels and sound exposure levels for B-1 and B-52 aircraft agreed well with predictions from the Air Force's existing NOISEFILE data base. It was also found that the distribution of lateral position re: centerline well described by a Gaussian distribution with a standard deviation of 0.5 mile. Analog recordings were made of selected overflights of B-1, B-52, and FB-111 aircraft. These provided definition of the temporal and spectral characteristics of these flight operations. Keywords: Military aircraft operations; Community noise exposure; Bomber aircraft.

Descriptors :   *AIRCRAFT NOISE, AIR FORCE, ANALOG SYSTEMS, RECORDING SYSTEMS, COMMUNITIES, EXPOSURE(GENERAL), NOISE, FLIGHT, LOW LEVEL, MILITARY AIRCRAFT, MILITARY TRAINING, MEASUREMENT, BOMBER AIRCRAFT, ENVIRONMENTAL IMPACT, LOW ALTITUDE, MILITARY OPERATIONS, STRATEGIC AIR COMMAND, LEVEL(QUANTITY), SOUND

Subject Categories : Acoustics
      Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE