Wirelessly posted (Opera/9.51 Beta (Microsoft Windows; PPC; Opera Mobi/1718; U; en))
Originally Posted by stupidhead
Originally Posted by
Palal
Lately some airlines have flown a tad slower to save fuel.
Isn't that saving negated by having to fly longer?
Air resistance curve is exponential at speeds closer to mach 1, so flying mach .83 vs mach .85 wil make a big difference in overall fuel consumption on a longhaul, but will only increase flying time very insignificantly.