Uncertainties concerning atmospheric pollution, airport-community noise, and sonic booms, are the concerns of NASA's High-Speed Research Program. Current analytical predictions are of an operational regime centered on Mach 2.4/20-km altitude where the goal of 5-gm equivalent NO2 emissions/kg fuel can result in no more than 1-percent column ozone depletion. Jet-noise suppressors using a mixer-ejector device are seen as capable of furnishing substantial noise reduction. Low-boom aerodynamic configurations are under scrutiny to maximize aircraft economic performance through overland supersonic flight.
Technical bases for High Speed Civil Transport environmental acceptability
01.09.1991
Aufsatz (Konferenz)
Keine Angabe
Englisch
NTRS | 1991
NTRS | 1990
|NTIS | 1990
|NTIS | 1991