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NASA Propulsion Strategy Reaches Back While Looking Ahead

机译:美国宇航局推进策略回望未来

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The initial propulsion work in support of NASA's bid to return to the Moon and go on to Mars will focus primarily on adapting space shuttle systems and developing methane-fueled engines, a technology with which the United States has little experience. The space shuttle main engine and solid rocket boosters are the basis for two new launchers NASA intends to develop, one for lofting an astronaut-carrying capsule known as the Crew Exploration Vehicle (CEV), and a heavy lifter for Moon-bound cargo loads. As currently envisioned, the CEV and other elements of the Moon and Mars exploration architecture would rely on engines fueled by a mixture of liquid oxygen and methane, NASA officials said. Relying on a mix of old and new technology will help NASA limit risks in its propulsion development work, said Steve Cook, deputy director for space transportation at NASA's Marshall Space Flight Center in Huntsville, Ala. Marshall is in charge of developing the rockets NASA will need to return to the Moon by 2018 and go on to Mars.
机译:为支持美国宇航局重返月球并进入火星而进行的最初推进工作将主要集中在改造航天飞机系统和开发甲烷燃料发动机上,而美国对此技术缺乏经验。航天飞机的主发动机和固体火箭助推器是美国宇航局计划开发的两款新发射器的基础,其中一个用于放飞被称为乘员探索车(CEV)的宇航员太空舱,以及一台用于载满月球货物的重型起重器。美国宇航局官员说,按照目前的设想,CEV和月球和火星探测结构的其他要素将依靠由液态氧和甲烷混合气为燃料的发动机。位于阿拉巴马州汉斯维尔的美国宇航局马歇尔太空飞行中心副主任史蒂夫·库克说,依靠新旧技术的结合将有助于美国宇航局限制其推进发展工作中的风险。需要在2018年之前返回月球并继续前往火星。

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