SIMPLIFIED SONIC-BOOM PREDICTION
Sonic boom overpressures and signature duration may be predicted for the entire affected ground area for a wide variety of supersonic airplane configurations and spacecraft operating at altitudes up to 76 km in level flight or in moderate climbing or descending flight paths. The outlined procedure relies to a great extent on the use of charts to provide generation and propagation factors for use in relatively simple expressions for signature calculation. Computational requirements can be met by hand-held scientific calculators, or even by slide rules. A variety of correlations of predicted and measured sonic-boom data for airplanes and spacecraft serve to demonstrate the applicability of the simplified method.
Langley Research CenterNational Aeronautics and Space Administration
Hampton, VA United States 23665
- Carlson, H W
- Publication Date: 1978-3
- Pagination: 50 p.
- TRT Terms: Aerodynamics; Atmospheric diffusion; Calculators; Charts; Effective sound pressure; Flight paths; Forecasting; Mathematical prediction; Noise; Sonic boom; Spacecraft; Supersonic speed; Supersonic transport planes
- Old TRIS Terms: Aerodynamic configurations
- Subject Areas: Aviation; Data and Information Technology; Environment; Vehicles and Equipment;
- Accession Number: 00180489
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NASA-TP-1122
- Files: TRIS
- Created Date: Aug 19 1978 12:00AM