[Red Badger]

mach 4.5 = 1 531.305 m / s...............so maybe they could outrun the heat!.................B^)

[SpeakerToAnimals]

Ben Rich tells a story about a discussion of the Aurora, the mythical Mach 6 replacement for the Blackbird. He told the guy they were heat warping Titanium with the blackbird. That shut the guy up.

Iridium has the highest melting point. 4800 f I think. But a bit heavy for aircraft.