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Originally Posted by banquo's_bumble_puppy
Can airliners/large passenger jets make use of gliding to save fuel?
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No; for every glide, there is a drop. For every drop, there has to be a corresponding climb to be there in the first place.
And; the fuel is all about the aerodynamics which exist whether gliding or thrusting.
I'm not sure how much can be gained by flying slower. I'm sure it would be considerable. But compared to ground costs, labor costs, congestion, depreciation, and a whole bunch of other factors...the more takeoffs and landings you can do to get the most passengers on and off, the more money you are going to make.
Quote:
Originally Posted by banquo's_bumble_puppy
part of the flight? or no engines at all???
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