Originally Posted by
Needles Crossed
What i'm not getting is that whilst stall speed in TAS increases, in straight accelerated flight, stall speed in IAS should remain the same provided that the aircraft maintains the same configuration.
The premises that critical AOA always remains the same, and that IAS stall speed remains the same as long as weight and G do, are "lies told to children" that are
close enough to being true at GA altitudes and speeds, and allow the rest of flight dynamics to be derived for a basic understanding.
But at the high altitudes and speeds that jets fly at, the effects of Mach and Reynolds numbers start being significant enough to lower critical AOA and increase IAS stall speed noticeably.