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Game Plan

机译：比赛计划

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Industry proposals for the Crew Exploration Vehicle that NASA plans as a replacement for the space shuttle are due next week, but the agency's new chief says it might be necessary to slow the CEV procurement at first to speed it up later. After a quick trip to Kennedy Space Center for briefings on getting the space shuttle back in operation (see p. 49), Michael D. Griffin sat down with his growing staff last week to begin work on modifying the CEV procurement. "We are going to rethink our entire program in that area," he said during an inaugural press conference Apr. 18. The proposals due May 2 are being prepared in response to NASAs call for a "risk-reduction flight effort" in 2008 that would lead to delivery of a human-rated CEV in 2014. But Griffin was co- leader on an independent study in 2004 that recommended a way to get the CEV flying astronauts in 2010, the year President Bush has set as a deadline for retiring the space shuttle fleet. In that study, produced for The Planetary Society, Griffin and his team called for development of a 13-15-ton "Block 1" CEV limited to low Earth orbit (LEO) that would be launched atop a single space shuttle solid rocket motor (SRM), with a new cryogenic upper stage based on existing rocket engine technology. Under this approach, NASA would develop a "Block 2" CEV later for human exploration beyond LEO.
机译：美国宇航局计划替代乘员的乘员探索车的行业提议将于下周出炉，但该机构的新任负责人表示，可能有必要先降低CEV的采购速度，然后再加快采购速度。在快速访问肯尼迪航天中心以听取有关使航天飞机恢复运行的简报（请参阅第49页）后，迈克尔·格里芬上周与他成长中的员工坐下来，着手进行CEV采购的修改工作。他在4月18日举行的首届新闻发布会上说：“我们将重新考虑该领域的整个计划。” 5月2日到期的提案正在准备中，以响应NASA在2008年提出的“降低风险的飞行努力”，这将导致在2014年交付人类额定的CEV。但是格里芬（Griffin）是2004年进行的一项独立研究的联合负责人，该研究提出了一种方法，使CEV在2010年成为飞行航天员，而布什总统已将这一年定为退役的最后期限。航天飞机舰队。格里芬（Griffin）和他的小组在这项研究中，为行星学会进行了研究，呼吁开发一种仅限于低地球轨道（LEO）的13-15吨“ Block 1” CEV，该CEV可以在单个航天飞机固体火箭发动机上发射（ SRM），并具有基于现有火箭发动机技术的新型低温上段。在这种方法下，NASA稍后将开发“ Block 2” CEV供LEO以外的人类探索之用。

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