2017年2月16日 星期四

GAO Reports Significant Delays in Commercial Crew Launch Dates

NASA Commercial Crew Program: Schedule Pressure Increases as Contractors Delay Key Events

"Both of the Commercial Crew Program's contractors have made progress developing their crew transportation systems, but both also have aggressive development schedules that are increasingly under pressure. The two contractors - Boeing and Space Exploration Technologies, Corp. (SpaceX) - are developing transportation systems that must meet the National Aeronautics and Space Administration's (NASA) standards for human spaceflight - a process called certification. Both Boeing and SpaceX have determined that they will not be able to meet their original 2017 certification dates and both expect certification to be delayed until 2018. The schedule pressures are amplified by NASA's need to provide a viable crew transportation option to the International Space Station (ISS) before its current contract with Russia's space agency runs out in 2019. If NASA needs to purchase additional seats from Russia, the contracting process typically takes 3 years. Without a viable contingency option for ensuring uninterrupted access to the ISS in the event of further Commercial Crew delays, NASA risks not being able to maximize the return on its multibillion dollar investment in the space station."



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