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[i]The company displayed a vintage F-1 gas generator and turbomachinery unit at the National Space Symposium here. The flight hardware, left over from the Saturn V program, dwarfed other full-scale rocket engines the company had on display in its exhibition-hall booth. The company has two more F-1A engines that it is using for its NASA work. "We've torn them down and inspected them to see how they look," said Main combustion chamber development lead Tom Martin. "We're refurbishing those. We're taking some of the components and using modern processes to replicate that hardware." PWR is using the vintage gas-generator cycle to get the SLS off the pad, relying on its 1.8 million-lb. thrust capability to provide the needed boost even without the efficiency of a staged-combustion engine that is also in the running under NASA's advanced booster program. ...PWR took over testing of a heritage F-1A gas generator earlier this year from NASA at Marshall Space Flight Center, and has subsequently refurbished the engine components using the company-developed improved manufacturing techniques. "We will take the gas generator that we and Marshall tested, and do a power pack test at [NASA] Stennis. It will be the largest flow test," said Martin. The exercise will wrap up the 30-month program and is scheduled for "late 2014," he said.[/i]
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