Accession Number : ADP007516

Title :   Noise Studies for Environmental Impact Assessment of an Outdoor Engine Test Facility,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF MECHANICAL ENGINE ERING

Personal Author(s) : Krishnappa, G.

Report Date : APR 1992

Pagination or Media Count : 8

Abstract : The potential impact of noise in the community surrounding a proposed outdoor test facility in the Ottawa area was evaluated. The test stand was planned for the testing of high performance gas turbine engines. Theoretical predictions based on the outdoor sound propagation model were made for the noise generated from a General Electric F404 engine. The results were verified by carrying out measurements of noise generated from a single engine of a parked CF-18 aircraft. The measured results qualitatively confirmed the validity of theoretical predictions. However, the tests clearly demonstrated the strong influence of the atmospheric conditions in the observed noise levels in the surrounding community. The usefulness of the theoretical predictions in devising noise control measures in the test area and for the scheduling of tests in favourable weather conditions to minimize noise impact in the surrounding area have been discussed.

Descriptors :   *MILITARY AIRCRAFT, *NOISE REDUCTION, *AIRCRAFT ENGINE NOISE, AIRCRAFT, ATMOSPHERICS, COMMUNITIES, CONTROL, ENGINES, FACILITIES, GAS TURBINES, IMPACT, MEASUREMENT, MODELS, NOISE, OUTDOOR, PREDICTIONS, PROPAGATION, SCHEDULING, SOUND, TEST FACILITIES, TEST STANDS, TEST AND EVALUATION, TURBINES, WEATHER, FIXED WING AIRCRAFT.

Subject Categories : Noise Pollution and Control
      Acoustics
      Military Aircraft Operations

Distribution Statement : APPROVED FOR PUBLIC RELEASE