"Eric Greenwell" wrote in message
news:iQ40i.7879$XG1.4760@trndny07...
Bill, how do you tell what MC setting a pilot is using from looking at a
flight trace? Perhaps you meant "a fairly steady cruise speed equivalent
to an MC setting of ..."? The good pilots I've flown with don't follow an
MC setting, but cruise at a fairly constant speed.

Just change the McCready setting on the PDA software until the speed-to-fly
command matches what the pilot was doing. GPS_LOG can automatically set
McCready to the average of the last (n) thermals. If that results in a lot
of "slow down" indications, the pilot was overflying the conditions.

Actually, these pilot also fly at a pretty constant speed - 110 knots IAS.
(GPS_LOG also makes a pretty good guess at the IAS.)

Bill Daniels