The study shows that the all-nuclear spacecraft can have a substantial weight advantage over a hybrid (nuclear/solar) or all-solar spacecraft, owing to a further reduction in power requirement, and to the elimination of such equipment as the sensor gimbal and rotating joint assemblies. Because the need for a sun-oriented section is eliminated, the all-nuclear spacecraft can be designed as a monolithic structure, with the sensor and other payload firmly secured in a fixed position on the structure. This enhances attitude stability while minimizing structural weight and eliminating the need for flexible fluid lines. Sensor motion can be produced, varied, and controlled within the limits specified by the study contractors by moving the entire spacecraft in the prescribed pattern. A simple attitude control system using available hardware suffices to meet all requirements. (ERA citation 01:012653)


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    Title :

    Nuclear-Powered HYSAT Spacecraft: Comparative Design Study


    Contributors:
    B. Raab (author)

    Publication date :

    1975


    Size :

    63 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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