[frontiersummit]

I'm similarly curious. Designing for a higher stall speed permits smaller wing area, lower drag, and lower weight. The cost is that takeoffs and landings become troublesome.

[zeusk]

Could be catapult launched?

[H8crilA]

Lee waves? Thermals? Cumulonimbus thermals? :)

[JKCalhoun]

Or balloon launched, parachute landing.

[moralestapia]

I don't think one could just "throw" something 70k feet up in the air.

[bloak]

Winch launch?