Replacing NASA's Shuttle

Astronomy and Astrophysics – Astronomy

Scientific paper

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Advanced Launch System (Sts), Manned Spacecraft, Space Shuttle Orbiters, Economic Analysis, Space Commercialization, Space Transportation

Scientific paper

The latest NASA Shuttle II proposal for an Advanced Manned Launch System (AMLS) is reviewed. It could achieve total reusability, with a glide-back booster stage and no solid rockets. The propellant load would be divided between the booster and orbiter stages. The AMLS payload of just over nine tons will be limited to crew and 'high-value' cargo, carried in the dorsal pod. Bulky freight and satellites will rely on expendable launchers. AMLS will be a Space Station ferry only and would not be used for on-orbit experiments. The operational history of the Space Shuttle program is shown, as well as its programmed future undertakings. Beyond the proposed Shuttle II, some insight is offered on the conceptual vehicle named Shuttle Z that could be the mainstay of Lunar-Base or Mars expeditions. Needed technologies and key features of a proposed AMLS orbiter are also mentioned. In addition, NASA proposals for a rescue vehicle for Space Station Freedom that will serve to return stranded or injured astronauts to earth is presented. One such proposed crew rescue vehicle would carry four people plus 450 kg of supplies, for a gross mass of 7146 kg.

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