"Gord Beaman" wrote in message
...
(B2431) wrote:



It's OAT. Air speed measured with just pitot and static pressure is
referred to
as indicated airspeed, IAS. If you temperature compensate it becomes true
air
speed, TAS.


Well, it's been many years but ISTR that there's another step
here.

Yep, Dan is incompetent again.

Isn't there such a thing as RAS?

CAS, or computed airspeed.

, maybe Rectified Air
Speed?...IAS corrected for temp? (or maybe CAS?). I thought TAS
was IAS corrected for altitude?

You got it Gord, I knew you would remember.

Man!...it was something like 27 years since I last stepped down
that six foot ladder under the tail of an Argus...and about 50
years since the F/E course where I learned this stuff (so cut me
some slack guys!).

Dan and you can work out the pressure and temperature compensation.