X-plane
The
X-planes are a series of experimental
United States aircraft (and some
rockets) used for testing of new technologies and usually kept highly secret while the work is underway.
The first of these, the Bell X-1, became well-known as the first plane to break the sound barrier, which it did in 1947. Later X-planes yielded important research results, but only the North American X-15 rocket plane of the early 1960s achieved comparable fame.
X-plane projects are still underway as of 2003.
- Bell X-1
- Bell X-2
- Douglas X-3 Stiletto
- Northrop X-4 Bantam
- Bell X-5
- Convair X-6
- Lockheed X-7
- Aerojet General X-8
- Bell X-9 Shrike
- North American X-10
- Convair X-11
- Convair X-12
- Ryan X-13 Vertijet
- Bell X-14
- North American X-15
- Bell X-16
- Lockheed X-17
- Hiller X-18
- Curtiss-Wright X-19
- Boeing X-20 Dyna-Soar
- Northrop X-21
- Bell X-22
- Martin-Marietta X-23 Prime
- Martin-Marietta X-24
- Bensen X-25
- Schweizer X-26 Frigate
- Lockheed X-27
- Pereira X-28 Sea Skimmer
- Grumman X-29
- X-30
- Rockwell-MBB X-31
- Boeing X-32
- Lockheed Martin X-35
- McDonnell Douglas X-36
See also: X-Plane
Reference
- Jay Miller, The X-Planes: X-1 to X-45 (Motorbooks International, 2001)
External link