What To Know: US Missile Defense Agency's Hypersonic Glide Phase Interceptor

In the world of powered flight, hypersonic flight has become the new benchmark for missile and manned aircraft design. With modern technology, supersonic flight is not difficult to achieve or maintain, and many modern fighter aircraft and some large aircraft, such as bomber aircraft, can achieve supersonic flight. But how is hypersonic flight different from supersonic flight? Simply put, hypersonic flight is defined as sustained flight at or above Mach five, whereas supersonic flight is sustained flight at or above Mach one. The newest weapons being developed are being designed to fly at hypersonic speeds.

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