The fastest plane in the world is the NASA X-43, which is a unmanned experimental aircraft. The X-43 is a small, unmanned aircraft that was designed to test hypersonic (faster than the speed of sound) flight. The X-43 achieved a top speed of 7,346 mph (11,000 km/h) during its fourth and final flight test in 2004.
Other fast planes include the SR-71 Blackbird, which was a reconnaissance aircraft used by the United States Air Force. The SR-71 was capable of flying at speeds of up to 2,193 mph (3,529 km/h).
The fastest manned aircraft is the Lockheed SR-71 Blackbird, a long-range reconnaissance plane that was operated by the United States Air Force. The SR-71 was capable of flying at speeds of up to 2,193 mph (3,529 km/h). It holds the official air speed record for a manned aircraft, set in 1976.