The North American X-15 was a revolutionary rocket-powered aircraft from the 1960s designed to explore hypersonic flight at ...

Decades before the rumored SR-72 “Darkstar,” America had already conquered hypersonic flight with the X-15 rocket plane. -In ...

Object Details Manufacturer Reaction Motors, Inc. Summary This is the so-called Interim Engine of the X-15 rocket research aircraft and is made up of two joined XLR-11 rocket engines. The XLR-11 was ...