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[i]"We strongly advise that NASA carefully and cautiously weigh the value proposition for flying crew on EM-1," [ASAP chairwoman Patricia Sanders] said. "NASA should provide a compelling rationale in terms of benefits gained for accepting additional risk, and fully and transparently acknowledge the tradeoffs being made before deviating from the approach for certifying the Orion/SLS vehicle for manned spaceflight." "If the benefits warrant the assumption of additional risk," she added, "we expect NASA to clearly and openly articulate their decision-making process and rationale."[/i]
[i]Under the current approach, NASA would fly a relatively demanding mission on EM-1 lasting more than 20 days, "really pushing the limits of where Orion and SLS can actually perform," Crusan said. EM-2, with a crew, would be a more conservative mission to test the performance of the life support system. That approach, he said, would be reconsidered if a crew flies on EM-1. "If you put crew on the first mission, you're not going to go to distant retrograde orbit and push the limits of the vehicle on the very first flight," he said. "So do you actually make less progress, or more progress? That's the trade we have to go through."[/i]
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