Mixed NEP/NTP propulsion for split Mars missions

Computer Science – Performance

Scientific paper

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Astronomical And Space-Research Instrumentation

Scientific paper

Speed and safety have emerged as key factors in preliminary designs for piloted missions to Mars. Mission planners seek short flight times to maximize productive exploration time, and to minimize the risk of extended periods in space. To meet these objectives with reasonably sized vehicles will require some form of advanced propulsion; if the choice is nuclear, additional safety constraints may apply. Element-level redundancy for crew safety requires a significant increase in propulsion capability to keep vehicle and propellant masses within reason. Mixed high/low thrust propulsion for split Mars missions is a high performance option that supports fast, safe crew transfers, large payload movement, disposal of spent reactors, and feasible vehicle sizing throughout.

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