National Security Journal on MSN

The Mach 6.7 X-15 ‘Hypersonic Rocket Plane’ Has a Message for the U.S. Air Force

The X-15 was a rocket-powered research aircraft that pushed human flight to the edge of space and deep into the hypersonic ...
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The North American X-15 ‘Rocket Plane’ Hit Mach 6.7 (All the Way Back in 1967)

Key Points and Summary - Decades before the rumored SR-72 "Darkstar," America had already conquered hypersonic flight with the X-15 rocket plane. -In 1967, this remarkable experimental aircraft, ...
insider.si.edu

North American X-15 Flight Record

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This collection consists of two items ...
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 ...
insider.si.edu

North American X-15 Stereo Color Slides

CC0 Usage Conditions ApplyClick for more information. Raun Robinson (died 1975) was an engineer with North American Aviation who worked on numerous aircraft, including the North American X-15. This ...
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The Unique Landing Technique Of The Fastest Manned Aircraft Ever Built

An aircraft capable of hitting 4,520 mph (nearly seven times the speed of sound) is ludicrous to even think about, but the North American X-15 achieved this, defying comparison to any other aircraft ...