Vivian Meazza:

Vivian Meazza:

I've finished the variation of Cd with Mach number.
The calculations are only applicable to ballistic
objects, and then strictly one shape: non boat-tailed bullets/shells, so
I've put them in AIBallistic rather than AIBAase. For all inputs, Cd
should be the sub-sonic value, so bullets will need changing.

I've just posted a graphical analysis here:

http://myweb.tiscali.co.uk/vmeazza/FlightGear/cd_mach.pdf