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WHAT KIND OF UPPER-STAGE PROPULSION FOR MARS MISSIONS

Aaron Cohen, L.S. Beers

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Abstract

A comparison of chemical, nuclear heat transfer, and electrical propulsion systems for Mars missions is presented. A probe, Mars orbiters, and soft-landing missions were selected as best typifying the energy requirements. The use of chemical upper stages with Atlas-Centaur booster, electric propulsion with Saturn C-1B, and nuclear or electric propulsion with Saturn C-5 and Nova is indicated for the 1965-1980 period. (C.E.S.)

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A comparison of chemical, nuclear heat transfer, and electrical propulsion systems for Mars missions is presented. A probe, Mars orbiters, and soft-landing missions were selected as best typifying the energy requirements. The use of chemical upper stages with Atlas-Centaur booster, electric propulsion with Saturn C-1B, and nuclear or electric propulsion with Saturn C-5 and Nova is indicated for the 1965-1980 period. (C.E.S.)

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Available abstract

A comparison of chemical, nuclear heat transfer, and electrical propulsion systems for Mars missions is presented. A probe, Mars orbiters, and soft-landing missions were selected as best typifying the energy requirements. The use of chemical upper stages with Atlas-Centaur booster, electric propulsion with Saturn C-1B, and nuclear or electric propulsion with Saturn C-5 and Nova is indicated for the 1965-1980 period. (C.E.S.)

Key concepts: Mars Exploration Program, Propulsion, Booster (rocketry), Titan (rocket family), Electrically powered spacecraft propulsion, Astrobiology, Exploration of Mars, Saturn

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