Flight-ready spare Space Shuttle external tank umbilical plate set utilized to mate with a corresponding plate on the Shuttle orbiter. The umbilical plate is a complex assemblage of electrical connectors, ducting and valves that was responsible for carrying Liquid Hydrogen and Liquid Oxygen propellant fluids, gases, electrical signals and electrical power between the tank and the orbiter prior to External Tank separation. Electrical signals and controls between the orbiter and the two solid rocket boosters also are routed through the umbilicals. The plate assembly also helped to maintain alignment among the umbilicals during flight. Upon command of external tank separation, the bolts connecting the interface between the Shuttle orbiter and the external tank were severed by pyrotechnic devices.
Approximate measurement 44 x 40 x 24 inches; estimated weight 350 pounds. Due to size and weight additional crating charges will apply.
