"Bertie the Bunyip" wrote in message
...
Doesn't really work all that well with anything, but it's a neccesary evil
in some airplanes. High performance fighter jets have to do it and some
airliners, especially four engined ones,

And most gliders. The issue is ground clearance with those long wings. I
was originally a glider pilot and I still have to think ahead and hold my mouth
just right before I can slip a power plane all the way down to touchdown.

Vaughn