Summary and Key Points: Project Mayhem is the U.S. Air Force's secret hypersonic program aiming to develop a Mach 10 air-breathing ISR and strike aircraft, potentially replacing the SR-71 Blackbird.

Meet the Air Force’s secret hypersonic bomber: the Expendable Hypersonic Multi-mission ISR (intelligence, surveillance and reconnaissance) and Strike program, a.k.a. Project Mayhem. The mighty ...

AMERICA is planning to build a hypersonic bomber that can fly at 7,000mph in a top secret scheme dubbed "Project Mayhem". When Russia and China introduced their hypersonic weapons, the US seemed ...

Summary and Key Points: Project Mayhem is the U.S. Air Force’s secret hypersonic program aiming to develop a Mach 10 air-breathing ISR and strike aircraft, potentially replacing the SR-71 Blackbird.