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  2. Curtiss-Wright X-19 - Wikipedia

    en.wikipedia.org/wiki/Curtiss-Wright_X-19

    Status. Canceled. Number built. 2. History. First flight. November 1963. The Curtiss-Wright X-19, company designation Model 200, is an American experimental tiltrotor aircraft of the early 1960s. It was noteworthy for being the last aircraft of any kind manufactured by Curtiss-Wright.

  3. Douglas XB-19 - Wikipedia

    en.wikipedia.org/wiki/Douglas_XB-19

    17 August 1946. The Douglas XB-19 was a four-engined, piston-driven heavy bomber produced by the Douglas Aircraft Company for the United States Army Air Forces (USAAF) during the early 1940s. The design was originally given the designation XBLR-2 (XBLR denoting "Experimental Bomber, Long Range"). It was the largest bomber built for the USAAF ...

  4. List of X-planes - Wikipedia

    en.wikipedia.org/wiki/List_of_X-planes

    List of X-planes. Bell X-1-2. The X-planes are a series of experimental United States aircraft and rockets, used to test and evaluate new technologies and aerodynamic concepts. They have an X designator within the US system of aircraft designations, which denotes the experimental research mission. Not all US experimental aircraft have been ...

  5. North American X-15 - Wikipedia

    en.wikipedia.org/wiki/North_American_X-15

    The North American X-15 is a hypersonic rocket-powered aircraft operated by the United States Air Force and the National Aeronautics and Space Administration (NASA) as part of the X-plane series of experimental aircraft. The X-15 set speed and altitude records in the 1960s, crossing the edge of outer space and returning with valuable data used ...

  6. Grumman X-29 - Wikipedia

    en.wikipedia.org/wiki/Grumman_X-29

    First flight. 14 December 1984. The Grumman X-29 is an American experimental aircraft that tested a forward-swept wing, canard control surfaces, and other novel aircraft technologies. Funded by NASA, the United States Air Force and DARPA, the X-29 was developed by Grumman, and the two built were flown by NASA and the United States Air Force. [1]

  7. Lockheed Martin X-59 Quesst - Wikipedia

    en.wikipedia.org/wiki/Lockheed_Martin_X-59_QueSST

    Primary user. NASA. The Lockheed Martin X-59 Quesst ("Quiet SuperSonic Technology"), sometimes styled QueSST, is an American experimental supersonic aircraft under development by Skunk Works for NASA 's Low- Boom Flight Demonstrator project. [1] Preliminary design started in February 2016, with the X-59 planned to begin flight testing in 2021.

  8. Boeing X-20 Dyna-Soar - Wikipedia

    en.wikipedia.org/wiki/Boeing_X-20_Dyna-Soar

    Boeing mock-up of X-20 Dyna-Soar. Days after the launch of Sputnik 1 on 4 October 1957, on either October 10 [18] or October 24, [19] the USAF Air Research and Development Command (ARDC) consolidated Hywards, Brass Bell, and Robo studies into the Dyna-Soar project, or Weapons System 464L, with a three-step abbreviated development plan.

  9. CubCrafters CC19 XCub - Wikipedia

    en.wikipedia.org/wiki/CubCrafters_CC19_XCub

    June 2016. Status. In production (2016) Number built. 20 (July 2016) Developed from. CubCrafters Carbon Cub EX. The CubCrafters CC19 XCub is an American light aircraft, designed and produced by Cub Crafters of Yakima, Washington, introduced in June 2016. The aircraft is supplied complete and ready-to-fly. [1][2]