A change in temperature does not change pitot
(P) or static (S) pressures and
MN = (P – S)/S so MN is constant.
Furthermore:
CAS is a measure of dynamic pressure = ½ρV2
Where ρ = air density (decreasing as temperature increases) and V =
TAS (increasing to keep CAS
constant)
Also:
TAS = MN x LSS = Constant x Increasing =
Increasing.