pstaney,
Some "ball-park" figures for CI=75 on B777-200ER
At Optimum Level, cruise = M0.835, plus or minus M0.001 per 20 knots of Headwind / Tailwind, i.e. for 100 knots Headwind, expect about M0.84, and for 100 kts Tailwind expect about M0.83.
Regards,
Old Smokey
Last edited by Old Smokey; 4th July 2007 at 05:20.
Reason: I can't count