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<!--BEGIN SPECIFICATIONS--> Shuttle Challenger Specifications Primary Function: Orbiter Vehicle (OV-99) -- destroyed in explosion Jan 28, 1986 Contractor: Various; Rockwell Internationalís Space Transportation Systems Division Crew: Up to eight Unit Cost: N/A Powerplant Three main engines running on liquid hydrogen/liquid oxygen propellant, rated at 512,950 lb thrust each; two solid, reusable rocket boosters rated at 3,300,000 lb each at launch, running on aluminum powder, iron oxide, and ammonium perchlorate powder. Dimensions Length: 121 ft Wingspan: 78 ft Height: 57 ft Weights Empty: 155,400 lb (70,489 kg) With main engines: 175,111 lb (79,430 kg) Performance Speed: 17,500 mph -- typical orbit Ceiling: N/A Range: N/A Armament N/A <!--END SPECIFICATIONS--> <!--BEGIN ACHIEVEMENTS--> Shuttle Challenger Achievements Shuttle Challenger completed 987 Earth orbits over 69 days in space. Shuttle Challenger was the first orbiter to launch and land at night. Shuttle Challenger was the first orbiter used to make on-orbit satellite repairs. <!--END ACHIEVEMENTS--> <!--BEGIN FEATURES--> <!-- Shuttle Challenger Features --> <!--END FEATURES--> <!--BEGIN BACKGROUND--> <!-- Shuttle Challenger Background --> <!--END BACKGROUND-->
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