Thanks Re-entry, my speed typing skills leave a lot to be desired.
Agreed abiout the small variations in Gamma, but most ADCs / FMCs etc use the 'standard' 1.4, so unless you're actually converting test flying results into standard results, using the standard will keep the results in line with standard instrument calibrations. As you said earlier, the difference is very small in any case.
Just in case someone copied my mis-typing, I'd better say again
TAT= SAT X (1+.2*M^2),
The problem was a cut and paste from the formula derived for TAS, didn't edit it as fully as I should have
, Thanks again
.
Regards,
Old Smokey