Military Hardware: Tanks, Bombers, Submarines and More
The Air Force commissioned the XB-70 Valkyrie in the late 1950s to drop nuclear bombs from Mach 3 at 70,000 feet. North American Aviation...
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Military Hardware: Tanks, Bombers, Submarines and More
In the mid-1960s, Lockheed’s Mach 3 YF-12 and North American Aviation’s Mach 3 XB-70 Valkyrie were both flying test missions out of Edwards Air...
Military Hardware: Tanks, Bombers, Submarines and More
In the late 1950s, the U.S. spent $800 million building a Mach 3.1 strategic bomber that could cruise above 70,000 feet and outrun every...
Military Hardware: Tanks, Bombers, Submarines and More
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...
Military Hardware: Tanks, Bombers, Submarines and More
Article Summary – The XB-70 Valkyrie was born from a simple Cold War idea: fly so high and fast that nothing could touch you....
Military Hardware: Tanks, Bombers, Submarines and More
Key Points and Summary – The North American XB-70 Valkyrie was a “technical marvel” of the 1950s—a Mach 3, 70,000-foot nuclear bomber designed to...
Military Hardware: Tanks, Bombers, Submarines and More
Key Points and Summary – Conceived in the 1950s to swat Soviet bombers before they reached U.S. airspace, the North American XF-108 Rapier promised...
Military Hardware: Tanks, Bombers, Submarines and More
Key Points and Summary – The XB-70 Valkyrie was the U.S. Air Force’s bid to outrun Soviet defenses: a six-engine, compression-lift bomber built for...
Military Hardware: Tanks, Bombers, Submarines and More
PUBLISHED on August 16, 2025, 11:10 AM EDT – Key Points and Summary: The North American XB-70 Valkyrie was a Cold War-era marvel designed...