Commercial Aircraft Noise Definition - L-1011 Tristar. Volume 3 - Program User's Manual
Final rept. Jun 1973-Sep 1974
LOCKHEED-CALIFORNIA CO BURBANK
Pagination or Media Count:
Calculation procedures to describe airplane noise during takeoff and approach have been programmed for batch operation on a large digital computer. Three routines are included. The first normalizes far-field noise spectra to reference conditions and then determines spectra at various distances from the airplane, for airport elevations between sea levels and 6000 feet and ambient temperatures between 30F and 100F. Overall sound pressure levels, A-weighted noise levels, perceived noise levels, and effective perceived noise levels are calculated. The second routine uses aerodynamic and engine thrust data to produce takeoff and approach flight path description. Volume 3 presents the logic behind the calculations and outlines the computational procedures.
- Civilian Aircraft