A Centaur second-stage rocket is lowered into the vacuum tank inside the Space Power Chambers at NASAs Lewis Research Center. Centaur was to be paired with an Atlas booster to send the Surveyor spacecraft to the moon as a precursor to the Apollo landings. Lewis was assigned responsibility for the Centaur Program after the failure of its first developmental flight in May 1962. Lewis Altitude Wind Tunnel was converted into two large test chambers—the Space Power Chambers. The facilitys vacuum chamber, seen here, allowed the Centaur to be stood up vertically and subjected to atmospheric conditions-- pressures, temperature, and radiation--similar to those it would encounter in space. The Centaur for these tests was delivered to Cleveland in a C?130 aircraft on September 27, 1963. The rocket was set up in the facilitys high bay where Lewis technicians and General Dynamics consultants updated its flight systems to match the upcoming Atlas-Centaur?4 mission. Months were spent reharnessing