The X-15 hypersonic rocket-powered aircraft, built by North American Aviation (NAA), greatly expanded our knowledge of flight at speeds exceeding Mach 6 and altitudes above 250,000 feet. A joint project among NASA, the U.S. Air Force, and the U.S. Navy, the X-15’s first powered flight took place on Sept. 17, 1959, at the Flight Research Center, now the Armstrong...
The Hypersonic Technology project is divided into four research topic areas. The first research topic is system-level design, analysis, and validation, which explores the impacts of technologies on vehicle performance. The second and third topics focus more specifically on propulsion technologies and vehicle technologies enabling hypersonic flight. The fourth topic...
Vehicles that travel at hypersonic speeds fly faster than five times the speed of sound. NASA studies the fundamental science of hypersonics to understand it better and applies this understanding to enable point-to-point and space access hypersonic vehicles. These vehicles would use airbreathing engines, which utilize oxygen in the atmosphere. In the long term, NASA...