Aircrafttotal Encyclopedia

X-planes & research

Research aircraft that pushed speed, height and technology.

  1. 1946
    Bell X-1First aircraft to break the sound barrier in level flight — Chuck Yeager, 14 October 1947Bell Aircraft · United States
  2. 1959
    North American X-15Fastest crewed, powered aircraft: Mach 6.7 (1967)North American Aviation · United States
  3. 1992
    NF-16D / X-62A VISTAUsed to test AI pilots in real flightGeneral Dynamics / Lockheed Martin · United States