"cavelamb himself" wrote in message
...

All it takes is a little collar on the pitot tube (and a bit of tweaking
the position)

That is how we calibrate the airspeed indicator to get it reading with
reasonable accuracy. Old CG himself taught me that one. :-)

Of course, nowadays, you have to tweak the GPS also!

Highflyer
Highflight Aviation Services
Pinckneyville Airport, PJ Y