Also see https://tacairnet.com/2014/10/02/47-years-ago-today-the-fastest-manned-aircraft-flight-ever/

Also see https://tacairnet.com/2014/10/02/47-years-ago-today-the-fastest-manned-aircraft-flight-ever/

They don't make 'em like this any more!
http://sploid.gizmodo.com/the-best-photos-of-the-x-15-fastest-manned-aircraft-ev-1675268839