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Nathan Payne March 29 th , 2007

Nathan Payne March 29 th , 2007. Final Presentation. Transfer Vehicle Communication Dishes. Constant coverage for duration of all missions Enough propellant to execute mid- course burns both to and from Mars Two dishes on TV for redundancy. Specifications.

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Nathan Payne March 29 th , 2007

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  1. Nathan PayneMarch 29th, 2007 Final Presentation

  2. Transfer Vehicle Communication Dishes • Constant coverage for duration of all missions • Enough propellant to execute mid- course burns both to and from Mars • Two dishes on TV for redundancy Specifications Docking for departure and arrival burns CAD’s provided by Matt Fox Payne - 2

  3. Transfer Vehicle Artificial Gravity Propellant Needs • Artificial gravity spin-up propellant contained within the TV • Engine nozzles for spin-up on TV • All other propellant in large tanks at opposite end of the truss from the TV • Spin-up maneuver takes less than 30min • TV is spun-up after the Earth and Mars departure burns • TV is spun-down after the Earth and Mars arrival burns • Artificial gravity still active during mid-course burns CAD provided by Matt Fox Payne - 3

  4. Backup Slides Payne - 4

  5. 4 Mission Scenarios 1st 2nd 3rd 4th HEO -dE HMO-aM HMO-dM HEO-aE Payne - 5

  6. References • Hall, Theodore W., “Artificial Gravity and the Architecture of Orbital Habits,” 1997, sec. 3-6, http://www.spacefuture.com/archive/artificial_gravity_and_the_architecture_of_orbital_habitats.shtml, [retrieved Jan 2007] • “NASA’s Exploration Systems Architecture Study,” NASA-TM-2005-214062, November 2005, sec.5, pp.217-246, http://www.nasa.gov/mission_pages/constellation/news/ESAS_report.html, [retrieved Jan 2007] • Landau, Dr. Damon F., “Strategies for the Sustained Human Exploration of Mars,” West Lafayette, IN, Dec. 2006, Chp. 9, pp. 152-164 • Longuski, James M., “Galileo Maneuver Analysis,” Lake Tahoe, NV, August 1981, pp. 3-4 • Code from week 8 presentation Payne - 6

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