Pugilistic Animus
the shock wave dissipates energy upon adiabatic expansion as long as the airframe is substantially within the mach cone.
Yeah but at Mach 5, and Mach 6 how far back is the mach cone swept? What if the airframe is not entirely inside the cone?
Mr. Vortex
As I interpret that image, a straight wing has a lower drag coefficient than the delta or swept wing....