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<!--BEGIN SPECIFICATIONS--> X-3 Stiletto Specifications Primary Function: Experimental Aircraft Contractor: Douglas Crew: One Unit Cost: N/A Powerplant Two 3,370-pound-thrust (4,900-pound-thrust with afterburner) Westinghouse J34s Dimensions Length: 66 feet 9 inches Wingspan: 22 feet 8 inches Height: 12 feet 6 inches Weights Empty: N/A Maximum Takeoff: 22,400 pounds Performance Speed: 706 mph Ceiling: 38,000 feet Range: N/A Armament N/A <!--END SPECIFICATIONS--> <!--BEGIN ACHIEVEMENTS--> X-3 Stiletto Achievements Although never achieving what it was designed to, the X-3 contributed to the development of high-speed aircraft. <!--END ACHIEVEMENTS--> <!--BEGIN FEATURES--> <!-- X-3 Stiletto Features --> <!--END FEATURES--> <!--BEGIN BACKGROUND--> X-3 Stiletto Background The X-3 was developed under Secret Project MX-656 to investigate thermodynamics (aerodynamic heating) of an aircraft flying at least 30 minutes at double sonic speeds. There was only one Douglas X-3 aircraft ever made. The X-3 made its first flight on September 20, 1952. The X-3 made its first flight at Edwards AFB on October 20, 1952, with Douglas pilot Bill Bridgeman in the cockpit. The X-3 was powered by two afterburning 4,850lb thrust Westinghouse J34-WE-17 turbojet engines, although it was planned to have two afterburning 7,000lb thrust Westinghouse J46-WE-1 turbojets. Because the aircraft was severely underpowered, the aircraft could barely reach supersonic speeds unless it dove from a high altitude. The aircraft was retired after only 51 total flights. Although the aircraft never reached the speeds it was meant to, it contributed greatly to the development of high-speed aircraft. In 1956, the X-3 was put on display at the U.S. Air Force Museum.Summary Copyright © Charles M (JetWhiz) <!--END BACKGROUND-->
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