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 Mach 3 strategic bomber prototype—sits at the National Museum of the Air ...

After the U-2 shootdown, the CIA pursued an unmanned reconnaissance drone faster than any fighter. The Lockheed D-21 was launched from modified aircraft and powered by a ramjet, reaching Mach 3 speeds ...

A Boeing F-15 is still quite fast, but not nearly Mach 3, the company’s program manager said on Feb. 23, correcting a previous statement. “Mach 2.497 is what we can get out of the Eagle jet and that’s ...

Airplane performance specifications don’t often make the news anymore. The tempo of aerospace development has slowed since the earlier eras of jet technology, when speed and altitude seemed to be ...