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ASA S12.76-2017 (R2020)

Methods for Measurement of Supersonic Jet Noise from Uninstalled Military Aircraft Engines
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ASA S12.76-2017 (R2020)

Methods for Measurement of Supersonic Jet Noise from Uninstalled Military Aircraft Engines

PUBLISH DATE 2017
ASA S12.76-2017 (R2020)
This standard describes procedures to measure jet noise from uninstalled military aircraft engines with supersonic exhaust flows. The methods pertain to propulsion systems mounted on outdoor test stands with appropriate inlets and representative nozzles. Detailed measurement procedures are described for near-field acoustical characterization. These data can be used to establish baseline noise levels, assess effectiveness of noise reduction technologies, estimate personnel noise exposure, and provide full-scale data for refinement of engine noise models. Far-field measurement procedures are described to provide data for estimates of community noise. This standard describes required measurement instrumentation, signal processing, data formatting, and measurement uncertainty. This standard does not apply to commercial engines, dual-use engines, or other engines covered by FAA/ICAO noise certification requirements.
SDO ASA: Acoustical Society of America
Document Number S12.76
Publication Date March 27, 2017
Language en - English
Page Count
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
March 27, 2017 Revision