An unprecedented combination of high propellant fraction and small size is required for affordable-scale Mars return, regardless of the number of stages, or whether Mars orbit rendezvous or in-situ propellant options are used. Conventional space propulsion technology is too heavy, even without structure or other stage subsystems. The application of launch vehicle design principles to the development of new hardware on a tiny scale is therefore suggested. Miniature pump-fed rocket engines fed by low pressure tanks can help to meet this challenge. New concepts for engine cycles using piston pumps are described, and development issues are outlined.


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    Title :

    Mars Ascent Propulsion Options for Small Sample Return Vehicles


    Contributors:

    Publication date :

    1997


    Size :

    22 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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