Similar to X-10_(ミサイル)

Bell X-22

Martin X-23 PRIME

Martin Marietta X-24

Bensen B-8

Schweizer X-26 Frigate

Lockheed CL-1200 Lancer

Osprey Osprey I

Grumman X-29

Rockwell X-30

Lockheed Martin X-33

Lockheed Martin X-35

NASA X-38

X-41 Common Aero Vehicle

X-42 Pop-Up Upper Stage

Lockheed Martin X-44 MANTA

Piasecki X-49 SpeedHawk

Boeing X-53 Active Aeroelastic Wing

Gulfstream X-54

Lockheed Martin X-55

NASA X-57 Maxwell

Generation Orbit X-60

General Dynamics X-62 VISTA