原文传递
Noise measurements of turboprop airplanes at different overflight elevations
| 题名： | Noise measurements of turboprop airplanes at different overflight elevations |
| 作者： | Mueller, K. |
| 关键词： | measurement；different；turbo；noise；light；lane；tabulate；prop；flig；over |
| 摘要： | In order to establish criteria for the regulation of propfan aircraft engine noise emissions, measurement tests of overhead flights of a METRO-3 and a FOKKER-50 aircraft were performed. The decibel levels captured by the ground car microphone are tabulated according to the height of the microphone from the ground as the recording vehicle followed the aircraft through the test flight patterns. Microphone heights of 1.5 and 10 meters from the ground are recorded and correlated to the flight altitudes of the aircraft, which ranged from 5182-6401 meters. |
| 报告类型： | 科技报告 |
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