Accession Number:

ADP007528

Title:

Measurement and Prediction of Noise from Low-Altitude Military Aircraft Operations,

Descriptive Note:

Corporate Author:

NATIONAL PHYSICAL LAB TEDDINGTON (UNITED KINGDOM)

Personal Author(s):

Report Date:

1992-04-01

Pagination or Media Count:

13.0

Abstract:

In response to the rapid growth in demand for information on noise levels around military airfields in the UK, NPL developed AIRNOISE, a mathematical model for computing aircraft noise contours. since its first applications in 1981, the model has been used to determine zones of eligibility within the MoD compensation scheme. The model has been subject to continuous development, e.g. the incorporation of Harrier VSTOL operations. We have now extended the model to include noise from high-speed, low-level operations. The model predicts not only maximum levels but the complete time-history, so that the rapid onset rate can be estimated. To aid refinement and validation of the model, a special exercise has been conducted in which Tornado, Harrier, Jaguar, Hawk, F-15 and F-16 aircraft have flown straight and level at heights between about 100 and 400 feet, at various speeds and engine power settings over an array of microphones. This paper describes the trial and the results obtained. The prediction model is outlined and comparisons made between predictions and measurements.

Descriptors:

Subject Categories:

  • Acoustics
  • Military Aircraft Operations
  • Noise Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE


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