Stratolaunch has finally found a use for the world's largest airplane. Twice in the last five months, the company launched a hypersonic vehicle over the Pacific Ocean, accelerated it to more than ...

NASA's rocket-powered X-15 experimental plane made its first glide flight. The X-15 rocket plane was part of a series of ...

Stratolaunch has finally found a use for the world’s largest airplane. Twice in the past five months, the company launched a hypersonic vehicle over the Pacific Ocean, accelerated it to more ...

Still the fastest airplane ever flown, the North American X-15 earned its title 40 years ago, when on October 3, 1967 Air Force Major William “Pete” Knight flew the rocket-powered aircraft to ...

The X-15, technically, is an aircraft. But in many respects, the X-15 is just a rocket with some wings and a cockpit. Built around the Reaction Motors XLR99, the X-15 was uniquely powerful ...

A big part of that knowledge came from the X-15 hypersonic rocket-powered research aircraft. According to NASA, the joint research program was run by the U.S. Air Force, Navy, and North American ...

The X-15 rocket-plane built by North American Aviation ... “beyond the envelope of knowledge,” flying higher and faster than a manned aircraft has ever flown. The rocket engine will have ...

The aircraft landed on skids rather than ... Developed in the late 1950s and flown throughout the 1960s, the X-15 was a hypersonic rocket-powered research plane. Operated jointly by the United ...