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An analytical assessment of nasa's n(+)1 subsonic fixed wing project noise goal
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Berton, Jeffrey J. Burley, Casey L. Envia, Edmane |
| Copyright Year | 2010 |
| Description | The Subsonic Fixed Wing Project of NASA s Fundamental Aeronautics Program has adopted a noise reduction goal for new, subsonic, single-aisle, civil aircraft expected to replace current 737 and A320 airplanes. These so-called "N+1" aircraft--designated in NASA vernacular as such since they will follow the current, in-service, "N" airplanes--are hoped to achieve certification noise goal levels of 32 cumulative EPNdB under current Stage 4 noise regulations. A notional, N+1, single-aisle, twinjet transport with ultrahigh bypass ratio turbofan engines is analyzed in this study using NASA software and methods. Several advanced noise-reduction technologies are empirically applied to the propulsion system and airframe. Certification noise levels are predicted and compared with the NASA goal. |
| File Size | 698244 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100008935 |
| Archival Resource Key | ark:/13960/t10p6201j |
| Language | English |
| Publisher Date | 2010-02-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Regulations Civil Aviation Bypass Ratio Airframes Jet Aircraft Noise Noise Reduction Noise Intensity Fixed Wings Turbofan Engines Certification 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 |
