The Bell X-5 was an experimental aircraft that pioneered the concept of variable-sweep wings Continue reading
The Bell X-5 was an experimental aircraft that pioneered the concept of variable-sweep wings Continue reading
The Ryan X-13 Vertijet was an experimental jet-powered aircraft that could take off and land vertically Continue reading
The North American X-15 was a rocket-powered aircraft that flew at the edge of space in the 1950s and 1960s Continue reading
The Martin Marietta X-24 was a remarkable experimental aircraft that tested the feasibility of lifting body designs for reentry and landing Continue reading
The Lockheed Martin X-35 is a concept demonstrator aircraft that was developed for the Joint Strike Fighter program, a multinational effort to create a new generation of stealthy, multirole fighters Continue reading
The NASA X-38 was a prototype crew return vehicle (CRV) designed to provide a safe and reliable way for astronauts to return to Earth from the International Space Station Continue reading
The Hawker Hart was a British two-seater biplane light bomber aircraft that saw service with the Royal Air Force (RAF) in the inter-war period Continue reading
The L-33 Roem is a self-propelled artillery piece that was developed by Israel in the 1970s Continue reading
The Ilyushin Il-14 was a Soviet twin-engine passenger and cargo aircraft of the 1950s and 1960s Continue reading
The Boeing X-40A was an experimental vehicle that tested the design and performance of the Boeing X-37, a reusable spaceplane that could launch satellites and perform other missions in orbit Continue reading