On Thu, 01 Jul 2004 08:02:07 -0700, Tim Ward wrote:


If I can ask a favor, what is the equivalent airspeed at Mach 1 at 100,000
feet, standard atmosphere?


Mach 1 at 100,000 ft is 67 KEAS, rounded to the nearest knot. You
probably need to get to at least Mach 3 to have enough EAS to work with
(201 KEAS), and that is probably even on the low side for speed.
The highly swept shapes that favour reentry generally tend to be quite
draggy at low speed. Just as an example, the Mirage III has a 60 deg
delta wing. It has a speed for min drag of around 300 KEAS at typical
operating weights. It was a real pig at 200 kt. It didn't really start
to fly crisply until you got it up over 400 kt.

--
Kevin Horton RV-8 (finishing kit)
Ottawa, Canada
http://go.phpwebhosting.com/~khorton/rv8/
e-mail: khorton02(_at_)rogers(_dot_)com