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Relationship between aircraft noise contour area and noise levels at certification points
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Powell, Clemans A. |
| Copyright Year | 2003 |
| Description | The use of sound exposure level contour area reduction has been proposed as an alternative or supplemental metric of progress and success for the NASA Quiet Aircraft Technology program, which currently uses the average of predicted noise reductions at three community locations. As the program has expanded to include reductions in airframe noise as well as reduction due to optimization of operating procedures for lower noise, there is concern that the three-point methodology may not represent a fair measure of benefit to airport communities. This paper addresses several topics related to this proposal: (1) an analytical basis for a relationship between certification noise levels and noise contour areas for departure operations is developed, (2) the relationship between predicted noise contour area and the noise levels measured or predicted at the certification measurement points is examined for a wide range of commercial and business aircraft, and (3) reductions in contour area for low-noise approach scenarios are predicted and equivalent reductions in source noise are determined. |
| File Size | 1206308 |
| Page Count | 38 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20030107607 |
| Archival Resource Key | ark:/13960/t8kd6vf4s |
| Language | English |
| Publisher Date | 2003-09-01 |
| Access Restriction | Open |
| Subject Keyword | Air Transportation And Safety Civil Aviation Airline Operations Noise Reduction Aircraft Noise Noise Intensity Airports Noise Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
