65 Years Ago: First Powered Flight of the X-15 Hypersonic Rocket Plane https://www.nasa.gov/history/65-years-ago-first-powered-flight-of-the-x-15-hypersonic-rocket-plane/ #NASA #NASAHistory #Aeronautics
65 Years Ago: First Powered Flight of the X-15 Hypersonic Rocket Plane - NASA
The X-15 hypersonic rocket-powered aircraft, built by North American Aviation (NAA), greatly expanded our knowledge of flight at speeds exceeding Mach 6 andTessa Brazda (NASA)