Why are delta wing designs reputed to lose speed during turns?

On Wed, 24 Sep 2003 14:21:15 -0700, Hobo wrote:



It is commonly said that delta wing designs lose an above average amount
of speed while turning and that this a deficiency of the design. Is this
true, and if why does this occur? Also, how does this reputed flaw
affect the potential performance of the Typhoon?

TIA

Delta wings are typically a low aspect wing (stubby) which requires a
higher angle of attack to generate additionally lift than a higher
aspect (think Long and slim). Higher AOA results in higher drag,
hence one needs more thrust to maintian same speed.

I'm told that the F-106 was famous for it's first bat turn but after
that it was pretty much toast.

Ross "Roscoe" Dillon
USAF Flight Tester
(B-2, F-16, F-15, F-5, T-37, T-38, C-5, QF-106)