Originally Posted by
High Wing Drifter
JackofAllTrades,
Master of one perhaps? Simple aerodynamics? Transonic to supersonic is about as difficult as it gets
WingletTurbo,
No they are completely different. The high speed stall, also called the "mach tuck", "mach stall", etc is not a stall at all, it just gives the appearance of a stall (nose down). It is specifically due to the centre of pressure moving fore and aft (and very aft at about Mach .90) as the aeroplane transitions from about Mach .7 to 1.0. That is what Studi described.
I believe this where the all moving tailplane comes in as it is powerful enoough to out trim the effects. Not sure, but I think Concorde used to pump fuel fore an aft to help control it too.
Accelerated stalls are due to increasing the angle of attack beyond the stalling angle at speeds above stall speed due to severe turbulence or over zelous use of the elevator.
Thank you for the clarification!
