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Old Feb 6, 2007 | 7:32 pm
  #7  
USDHS1984
 
Join Date: Sep 2006
Location: SAN
Programs: CO plat, BR gold, SPG gold
Posts: 320
OK, so doing the math..........

We were doing a ground speed of 763MPH

We were at FL33 (lower than usual for this flight too)

Mach 1.0 at FL33 is ~670MPH (depending on temperature)

777-300ER's cruise at .84 Mach

So airspeed 'probably would have been' ~563mph (670x.84)

Thus tailwind must have been ~200MPH (763-563)
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