When it was constructed, the Space Power Facility (SPF) was the world's largest vacuum chamber. It stands more than 122 feet high, 100 feet in diameter and provides a vacuum environment for the study of space propulsion. Originally commissioned for nuclear-electric propulsion studies, the SPF has been recommissioned for current and future use in the ongoing research and development of space propulsion systems. The SPF is located at Plum Brook Station, part of the John H. Glenn Research Center at Lewis Field, Cleveland, Ohio.

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Keywords: brook, chamber, facility, plum, power, space, spf, station, vacuum