VALIDATION OF AIRCRAFT NOISE PREDICTION PROGRAM
Predictions made with NASA's aircraft noise prediction program (ANOPP) were compared with flyover noise data. A data base of six flyover noise runs for the DC-10-40/JT9D-59A configuration was used. For all power settings, ANOPP consistently underpredicted the low frequency spectral levels, overpredicted high frequency spectral levels and, consequently, overpredicted the inlet and aft PNLT time histories.
Douglas Aircraft Company, Incorporated3855 Lakewood Boulevard
Long Beach, CA USA 90801
- Kapper, C Y
- Publication Date: 1979-6
- Pagination: 84 p.
- TRT Terms: Aircraft noise; Electromagnetic spectrum; Jet propelled aircraft; Mathematical prediction; Measurement; Noise; Overpasses; Sound level; Validity
- Identifier Terms: McDonnell Douglas aircraft; McDonnell Douglas DC-10
- Uncontrolled Terms: Noise measurement; Noise spectra
- Old TRIS Terms: Pratt and whitney jt9d engine; Program verification computers
- Subject Areas: Aviation; Data and Information Technology; Environment; Vehicles and Equipment;
- Accession Number: 00198896
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NASA-CR-159047 Final Rpt.
- Contract Numbers: NAS1-15471
- Files: TRIS
- Created Date: Oct 17 1980 12:00AM