Originally Posted by
hi55us
LAX-JFK yesterday, guessing it was because of the extremely high winds that have been making eastbound flights reach the speed of sound. Lot of factors go into aircraft noise, not just the aircraft.
Note that the higher speeds were speed over ground; the airspeed (and presumably engine load/rpm, amount/velocity of air across the body of the airplane) was the same.
In any case; QC-35's or equivalent are a sound investment for flying these days.