Stalls and Thoughts

Peter Clark wrote in
:

On Sat, 15 Mar 2008 19:39:13 -0400, Dudley Henriques
wrote:


I believe you are repeating wht I have said. I said that "dragging it
in" generally refers to flying the approach in the area of reverse
command or if you will behind the power curve. This is absolutely
correct. Coffin corner is the area behind the curve where sink rate
can't be stopped with power but requires reduction in angle of attack.
For a perfect example of an aircraft in coffin corner, see the Edwards
AFB accident involving a young AF pilot who got his F100 so deep into
coffin corner behind the curve he couldn't recover the airplane; not
enough air under him to reduce the angle of attack. He applied full
burner but couldn't fly it out on power alone. Reduction of angle of
attack was what he needed and he didn't have the room. THIS is the
definition of coffin corner and it most certainly IS in the area of
reverse command.

I thought coffin corner was the point where if you go slower you stall
and if you go faster you hit critical mach number?

Kind of , but the bottom side isn;t exactly a stall, it's also a mach
buffet. the main distinction being it happens at a higher than normally
indicated airspeed, and more crucially, a lesser angle of attack. The net
effect is the same, but it's important to distinguish between the two since
the picture when it happens is substantially different.

Just in case any of you guys are thinking of a VLJ.


Bertie