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Q109786835
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{{Page|Space Launch System Core Stage|Classes|liquid propellant rocket stage for NASA's Space Launch Ststem}}
{{Page|Space Launch System Core Stage|Classes|liquid propellant rocket stage for NASA's Space Launch Ststem|SLS Core Stage}}

Latest revision as of 12:55, 17 February 2025




The Space Launch System core stage, or simply core stage, is the main stage of the American Space Launch System (SLS) rocket, built by The Boeing Company in the NASA Michoud Assembly Facility. At 65 m (212 ft) tall and 8.4 m (27.6 ft) in diameter, the core stage contains approximately 987 t (2,177,000 lb) of its liquid hydrogen and liquid oxygen cryogenic propellants. Propelled by 4 RS-25 engines, the stage generates approximately 7.44 MN (1,670,000 lbf) of thrust, about 25% of the Space Launch System's thrust at liftoff, for approximately 500 seconds, propelling the stage alone for the last 375 seconds of flight. The stage lifts the rocket to an altitude of approximately 162 km (531,380 ft) before separating, reentering the atmosphere over the Pacific Ocean.

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