Before revision: North American X-15 (Mach 6.7) NASA X-43 (Mach 9.6) Boeing X-51 Waverider (Mach 5) WZ-8 (Mach 5) BrahMos-II (Mach 8) DF-ZF (Mach 5–10) HSTDV (Mach 6) Hwasong-8 (Mach 6–10) High-Hypersonic [10–25) Thermal control becomes a dominant design consideration.
After revision: Kh-47M2 Kinzhal (Mach 10) 3M22 Zircon (Mach 8-9)North American X-15 (Mach 6.7) NASA X-43 (Mach 9.6) Boeing X-51 Waverider (Mach 5) WZ-8 (Mach 5) BrahMos-II (Mach 8) DF-ZF (Mach 5–10) HSTDV (Mach 6) Hwasong-8 (Mach 6–10) High-Hypersonic [10–25) Thermal control becomes a dominant design consideration.