The North American X-15 is a hypersonic rocket-powered aircraft which was operated by the United States Air Force and the National Aeronautics and Space Administration (NASA) as …

The ARDC boiled down the 11 proposals to the three that had the best chance of quick realization - the X-15B, acceleration of the nascent program for the X-20 Dynasoar winged space glider, …

2012年9月15日 · What it was: A North American Aviation proposal to build an orbital spaceplane based on the same aerodynamic shape as the X-15 and boosted by leftovers from the …

2014年2月28日 · The X-15 was a follow-on research aircraft to the early X-planes, which had explored the flight regime from just below the speed of sound (Mach 1) to Mach 3.2. In 1952 …

The X-15 and other X-planes are more than a historical legacy for NASA. The program is the core of NASA’s New Aviation Horizons, an array of new experimental aircraft that will carry on the …

The flights of the North American X-15, an experimental American spaceplane built by North American Aviation and operated by the United States Air Force and NASA, were conducted …

The ARDC boiled down the 11 proposals to the three that had the best chance of quick realization - the X-15B, acceleration of the nascent program for the X-20 Dynasoar winged space glider, …

2012年11月29日 · American Institute of Aeronautics and Astronautics 12700 Sunrise Valley Drive, Suite 200 Reston, VA 20191-5807 703.264.7500

2012年9月5日 · The X-15 was the ultimate “X” vehicle. Built in the 1950s, she became the fastest and highest-flying winged aircraft of its time. During 199 flights from 1959 through 1968, she …

Composed of an internal structure of titanium and a skin surface of a chrome-nickel alloy known as Inconel X, the X-15 had its first, unpowered glide flight on June 8, 1959, while the first …