Mathematics – Logic
Scientific paper
Apr 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999stin...0211362f&link_type=abstract
Technical Report, DE2001-9664; UCRL-JC-132115; DP0102032
Mathematics
Logic
Propulsion System Configurations, Mars Sample Return Missions, Miniaturization, Hydrazines, Propellants
Scientific paper
A propulsion point design is presented for lifting geological samples from Mars. Vehicle complexity is kept low by choosing a monopropellant single stage. Little new development is needed, as miniature pump fed hydrazine has been demonstrated. Loading the propellant just prior to operation avoids structural, thermal, and safety constraints otherwise imposed by earlier mission phases. hardware mass and engineering effort are thereby diminished. The Mars liftoff mass is 7/8 hydrazine, 5% propulsion hardware, and 3% each for the payload and guidance.
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