Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

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Appendix L: Tether Boost Facility Design Final ReportNear Term Ground Demonstration Plan. Figure 5.2 is a suggested plan for a grounddemonstration of the MMOSTT tether grapple and payload R&C scenario. A 21 monthprogram is envisioned, to be executed in two phases:- Phase 1- Operational rendezvous and capture requirements definition- Laboratory R&C demo requirements definition- Ground test planning- Ground test hardware design- Fabrication plan- Phase 2- Ground test hardware fabrication- Test facility preparation, including all fixtures and lab modifications- Test article and lab hardware integration and check-out- Lab demonstration and data collection- Post-test data analysesFigure 5.2. Tether grapple and payload rendezvous can be demonstrated in 21 months.F-25
Appendix L: Tether Boost Facility Design Final ReportCost of this two-phase program is estimated to be as little as $3M to $4M. Furtherdetails and cost estimate refinements are required. Furthermore, test facilityrequirements need to be established in order to properly estimate range facilitization,test fixture, and special equipment costs. Other considerations are the following:- Demonstration complexity, i.e., scope of work- Validity of demonstration – relative grapple and payload motion in the labcompared to real life scenario- Use of government furnished equipment and facilitiesOn-Going Related Efforts. Regarding the use of government facilities, Boeing andNASA Marshall Space Flight Center (MSFC) currently have a Space Act Agreement inplace to conduct ground testing of key hardware and software technologies forautonomous vehicle operations during on-orbit proximity operations. Testing is beingconducted in the MSFC Flight Robotics Laboratory in Huntsville Alabama. Under thisagreement, efforts were initiated during 2000 and will continue through 2001.Boeing’s responsibilities include the following:a. Develop and supply test bed software for autonomous vehicle operations, includingproximity operations.b. Develop and supply test bed hardware for autonomous vehicle operations, includingproximity operations. Boeing-supplied hardware will include all cabling needed tointerface with MSFC Flight Robotics Lab systems.c. Design fabricate and install on the Dynamic Overhead Target Simulator (DOTS) atarget model simulator to be used in proximity operations testing in the MSFC FlightRobotics Laboratory.d. Supply personnel to integrate the test system, perform testing, and perform post-testde-integration.e. Create detailed test plans based on design reference missions, and review test planswith Flight Robotics Laboratory personnel.MSFC’s responsibilities include the following:a. Review Boeing test plans and hardware/software interfaces with the FlightRobotics Laboratory.b. Support test hardware/software integration and de-integration in the Flight RoboticsLaboratory. Provide test stand for supporting AVO sensor package optical bench. Assistwith alignment and setup of optical bench and target simulator.F-26
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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
Page 92 and 93: Payload Adapter Assembly Subsystems
Page 94 and 95: Potential Reeling FunctionsReeling
Page 96 and 97: LEO Control Station Weights16
Page 98 and 99: Payload Adapter Assembly Weights18
Page 100 and 101: Tether Boost FacilityRequired Power
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Page 104 and 105: Potential Reeling FunctionsReeling
Page 106 and 107: Preliminary Reeling AnalysisθθAss
Page 108 and 109: Tether Boost FacilitySystem Require
Page 110 and 111: Table of Contents1 Scope ..........
Page 112 and 113: 2 ReferencesThis section lists docu
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Page 116 and 117: 4 Ground Rules & AssumptionsThis se
Page 118 and 119: Appendix F: Tether Boost Facility D
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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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IAF-00-S.6.04TETHER SYSTEMS FOR SAT
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IAF-00-S.6.04controlled very precis
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IAF-00-S.6.04Perigee Altitude (km)3
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IAF-00-S.6.04The LEO⇒GTO Tether B
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IAF-00-S.6.04AcknowledgmentsThis re
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Tethers Unlimited, Inc.Appendix K:
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Tethers Unlimited, Inc.at a rate of
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Tethers Unlimited, Inc.Appendix L -
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Tethers Unlimited, Inc.Appendixm M:
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Appendix N. MXER Tether for Deployi
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Electrodynamic Thrustingto Reboost
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100000 95000 90000 85000 80000 7500
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Momentum Exchange/Electrodynamic Re
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NOMENCLATURESymbol MeaningA payload
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DepartureangleA = 1.5π - (ω + u
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Tether material has a "characterist
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Rendezvous of Grapple with PayloadT
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adius vector to the new center of m
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days from payload pickup at one pla
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"JupiterandBeyond"Tether cut CUT:<
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Tethers Unlimited, Inc.Appendix Q:
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Tethers Unlimited, Inc.Appendix R:
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Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

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