Originally Posted by
Pearly White
SO the only way out of that situation is to descend? Just checking...
Yes. Interesting point about the U-2, which lived in coffin corner: separately from the wing aerodynamics, at its altitudes, idle power on the engine climbed so high that it met with the turbine temp limit of max power, so there was only one power setting. (One might call it a separate "coffin corner" of the engine.) Anyway, because of that, it could not reduce power and the only way to descend was to add drag!