Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

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Appendix N. MXER Tether for Deploying MicrosatsForward, R.L., “Tether Transport from LEO to the Lunar Surface,” AIAA paper 91-2322, 27th AIAA/ASME/ASE/ASEE Joint Propulsion Conference, July 1991.Forward, R.L., Hoyt, R.P., “Failsafe Multiline Hoytether Lifetimes,” AIAA paper 95-289031stAIAA/SAE/ASME/ASEE Joint Propulsion Conference, San Diego, CA, July 1995.Forward, R.L., Hoyt, R.P., Failure Resistant Multiline Tether, PCT/US97/05840, filed 22 April 1997.Forward, R.L., Nordley, G., “MERITT: Mars-Earth Rapid Interplanetary Tether Transport System – InitialFeasibility Study,” AIAA Paper 99-2151, 35 th Joint Propulsion Conference, Los Angeles, CA, 20-24 June1999.Hoyt, R.P., “Tether System for Exchanging Payloads Between Low Earth Orbit and the Lunar Surface,” AIAAPaper 97-2794, 33rd AIAA/ASME/ ASE/ASEE Joint Propulsion Conference, Seattle, WA, 6-9 July 1997.Hoyt, R.P., “Cislunar Tether Transport System”, Tethers Unlimited, Inc. Final Report on NASA Institute forAdvanced Concepts Phase I Contract 07600-011, May 1999. Downloadable from www.niac.usra.edu.Hoyt, R.P. Uphoff, C.W., “Cislunar Tether Transport System”, J. Spacecraft and Rockets, 37(2), March-April 2000,pp. 177-186.Hoyt, R.P., "Design and Simulation of a Tether Boost Facility for LEO⇒GTO Transport", AIAA Paper 2000-3866,36 th Joint Propulsion Conference, Huntsville AL, July 17-19 2000.N-6
µSatellite Tether Boost FacilityRobert P. HoytTethers Unlimited, Inc.19011 36th Ave W, Suite F, Lynnwood, WA 98036+1-425-744-0400 fax -0407TU@tethers.com www.tethers.comMomentum-Exchange Tether Boost Facility• High-strength tether rotates around orbiting control station• Tether picks payload up from lower orbit and tosses payload into higher orbit• Tether facility gives some of its orbital momentum & energy to payload• Tether facility orbit can be restored by deboosting return payload or using ED tether propulsionMX Tethers2
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Tethers Unlimited, Inc.MMOSTT Final
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NIAC Funded Tether Research• Moon
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Electrodynamic Reboost• Power sup
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Cislunar Tether Transport System•
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MXER Tethers Included in NASA’sII
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5mt Payload Tether Boost Facilityfo
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LEOGTO Boost Facility• Initial Fa
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Tether Boost FacilityControl Statio
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LEOGTO Boost Facility• TetherSim
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Rendezvous• Rapid AR&C Capability
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Proposed RETRIEVE TetherExperiment
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µTORQUE on Delta IV• Delta-IV Se
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Opportunities for NASATechnology De
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AIAA 2000-3842COMMERCIAL DEVELOPMEN
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--Commercial Tether Transport AIAA
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-Commercial Tether Transport AIAA 2
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Commercial Tether Transport AIAA 20
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Commercial Tether Transport AIAA 20
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Momentum Exchange/Electrodynamic Re
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DESIGN AND SIMULATION OF A TETHER B
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Tether Boost Facility Design AIAA 2
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Tethers Unlimited, Inc.Cislunar Tet
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Interim Report Outline- Configurati
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Mission Definition¥ Payload Capaci
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Baseline Control Station DetailsTET
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Baseline Grapple AssemblyCAPTURES A
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LEO Facility System ArchitectureGRA
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Payload Adapter Assembly Subsystems
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Potential Reeling FunctionsReeling
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LEO Control Station Weights16
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Payload Adapter Assembly Weights18
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Tether Boost FacilityRequired Power
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Electrical Propulsion Voltage´ Spe
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Potential Reeling FunctionsReeling
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Preliminary Reeling AnalysisθθAss
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Tether Boost FacilitySystem Require
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Table of Contents1 Scope ..........
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2 ReferencesThis section lists docu
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The system shall measure and contro
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4 Ground Rules & AssumptionsThis se
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Appendix F: Tether Boost Facility D
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Appendix F Tether Boost Facility De
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Appendix F Tether Boost Facility De
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Appendix L: Tether Boost Facility D
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Tethers Unlimited, Inc.Tether Rende
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Ongoing Tether Work Under NIAC Fund
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Cislunar Tether Transport System•
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Rapid Earth-Mars Transport• Reusa
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EarthMars Launch Windows• MMOSTT
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Incremental Development Path1. TORQ
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LEOGTO Boost Facility• TetherSim
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Tether Boost FacilityControl Statio
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Modular Design• Design Components
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Payload Accommodation AssemblyConfi
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Electrodynamic Thrusting• Drive c
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Tether Facility Reboost• Use Elec
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Rendezvous• Rapid Automated Rende
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Rendezvous Method: Preparation• P
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Development Issues• Automated Ren
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Potential Flight Experiments• Hig
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Opportunities for NASATechnology De
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Acknowledgements• Boeing/RSS - Jo
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IAF-99-A.5.10RAPID INTERPLANETARY T
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Rapid Interplanetary Tether Transpo
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Page 278 and 279: IAF-00-S.6.04The LEO⇒GTO Tether B
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Page 296 and 297: Tethers Unlimited, Inc.Appendixm M:
Page 302 and 303: Appendix N. MXER Tether for Deployi
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Page 308 and 309: Electrodynamic Thrustingto Reboost
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Page 316 and 317: DepartureangleA = 1.5π - (ω + u
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Page 326 and 327: "JupiterandBeyond"Tether cut CUT:<
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Page 330 and 331: Tethers Unlimited, Inc.Appendix R:
Page 336: Tethers Unlimited, Inc.Appendix R:
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Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

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