Quote:
Originally Posted by BeechBoy  B767Driver I'm a little confused. We know that:
1. As the air thins out you get a higher TAS for any given CAS.
2. As temperature decreases your TAS decreases for any given MN.
If #1 happens to a greater degree than #2, shouldn't there be a net INCREASE in TAS if MN is held constant? |
The speed of sound is based on density. We often refer to temp, but think about what happens to density when you raise and lower the temp (density altitude).
As the air gets thinner faster than it gets colder a constant mach will have to have a slower TAS.