<p>This is the X-15 that set the (still unbroken) absolute speed record for a manned aircraft of Mach 6.72 (4,520 MPH/7274 Km/H) on 3rd October 1967, piloted by William J. "Pete" Knight.
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Photo ref; Nikon-D80-2018-DSC_0374 (Edited)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/41301592@N02">Roland Turner</a> from Birmingham, Great Britain
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/sisaphus/46451679082/">North American X-15A-2, National Museum of the US Air Force, Dayton, Ohio, USA.</a>