typical performance of airbus
2000-2500fpm (340 is climb 1200fpm)
fl410 (319 = 310-380, 380=430)
cruise speed 0.79-0.85
typical performance of boeing
2000-2500fpm(747=climn 1500fpm)
FL 410-430 (747,767=FL450)
speed 0.79-0.85
small ppl planes performance
500-700fpm
FL100
not that fast
business jet performance
1700-3000fpm
FL310-450
cruise speed 0.5-0.8
helicopter peformance
1200-1500fpm
FL100
mil performance
500-3000fpm
FL310-500
0.58-0.82
what is the cumulative EPNdb
total of 3 noises, effective perceived noise level
what 2 factors contribute most to a/c noise
engine type and maximum take off mass