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 ...

-Engineered to "ride" its own shockwave for fuel efficiency, the massive bomber was a technological masterpiece. However, its development coincided with the dawn of the "missile age." -The rise of ...

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 ...

The XB-70A had one mission: to wage a nuclear war against Russia if the Cold War ever went truly hot: On display at the National Museum of the United States Air Force at Wright-Patterson Air Force ...

Numeric designation suggests a lot, and the Bell X-1 was indeed a special aircraft. Chuck Yeager broke the sound barrier in the X-1, and the plane ushered in the modern age of supersonic flight. The X ...