National Security Journal on MSN

Sorry, B-21 Raider: Mach 3.08 XB-70 Valkyrie bomber has a message for the US Air Force

Mach 3.08 At 74,000 Feet: The XB-70’s Peak Moment Summary and Key Points: The lone surviving XB-70 Valkyrie—North American’s ...
Not What You Think Official on MSN

Why the US built a Mach 2 bomber then cut its speed in half

In the 1970s, the United States developed the B-1A Lancer, a strategic bomber capable of flying at Mach 2.2, faster than a rifle bullet, designed to outrun Soviet defenses at high speed and low ...