| タイトル | Research: Aircraft noise reduction in France |
| 本文（外部サイト） | http://hdl.handle.net/2060/19800020632 |
| 著者（英） | Pianko, M. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1980-06-01 |
| 言語 | eng |
| 内容記述 | In 1967 the French aeronautics industry began extensive research in the field of noise abatement. Substantial progress is shown for both supersonic and subsonic transports as well as for helicopters. |
| NASA分類 | ACOUSTICS |
| レポートNO | 80N29133
NASA-TM-75832 |
| 権利 | No Copyright |
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