The North American X-15 was a hypersonic rocket-powered aircraft operated by the U.S. Air Force and the National Aeronautics and Space Administration as part of the X-plane series of experimental aircraft between 1959 and 1967.
The X-15 set speed and altitude records in the 1960s, reaching the edge of outer space and returning with valuable data used in aircraft and spacecraft design. The X-15's official world record for the highest speed ever recorded by a crewed, powered aircraft, set in October 1967 when William J. Knight flew at Mach 6.70 at 102,100 feet, at a speed of 4,520 miles per hour. This record has remained unbroken as of 2020.
18 3/4' Length, Wingspan 8 1/4"