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The X-15 Hit Mach 6.7 and Put Every Military on Earth On Notice

Key Points and Summary - In 1967, USAF Major "Pete" Knight set a world speed record that remains "unbroken" 68 years later. -Flying the X-15A-2 rocket plane (Flight 188), Knight reached an astonishing ...
The Aviationist

Going Hypersonic: A Look at the Record-setting X-15

An important part of data collection for the United States space program, the North American X-15 had astonishing performance utilizing the technology of the 1950s and 60s. The North American X-15 was ...
The National Interest

The X-15 was a Starfighter in All But Name

The X-15 was a key bridge between conventional atmospheric flight and spaceflight. The North American X-15 is one of the most groundbreaking aircraft ever created in the history of aviation and space ...
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X-15: The Rocket Plane That Flew to Mach 6.7

While the SR-71 Blackbird gets all the press, the rocket-powered X-15 has its own richly deserved place in the aviation history record books: on October 3, 1967, U.S. Air Force test pilot William ...