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XTurb
4th Dec 2007, 11:08
Why does Mach number seem to decrease as weight reduces during a flight (i.e. fuel burn)?
Should it? Or is it just my imagination?
EDML
4th Dec 2007, 11:13
Because the speed for optimum range or a given cost factor will decrease
with decreasing weight.
XTurb
4th Dec 2007, 11:19
Cheers for that. Yeah, that makes sense. I need to go back over my ATPL notes...

PWA!

(PPRuNe wins again).