Figure 7.39 Possible Offshore Rectenna Sites in the North Sea................................................206 Figure 7.40 Preferred Construction for Offshore Rectenna Site................................................ 207 Figure 7.38 Possible Rectenna Site Locations in Continental United States............................. 208 Figure 7.41 Schedule Tasks for Power Systems - Demo 3......................................................... 209 Figure 7.42 Power System Tasks For Large Scale Demo.......................................................... 209 Figure 8.1 OMV/OTV Missions................................................................................................. 222 Figure 8.2 Example of Type 4.....................................................................................................223 Figure 8.3 OTV Concept for a Three Satellite LEO to GEO...................................................... 226 Figure 8.4 The Ariane 5 launcher............................................................................................... 229 Figure 8.5 Payload accommodation on Ariane 5........................................................................230 Figure 8.6 Payload accommodation on H-2................................................................................ 231 Figure 8.7 The Taurus Launcher [Isakowitz, 1991].................................................................... 231 Figure 8.8 SPS GEO Construction Concept................................................................................232 Figure 8.9 Boeing Studies and Comparison with Existing Launchers.......................................233 Figure 8.10 Rockwell Configuration...........................................................................................233 Figure 8.11 Boeing Configuration.............................................................................................. 234 Figure 8.12 Rockwell Configuration...........................................................................................234 Figure 8.13 Cargo Electric OTV.................................................................................................235 Figure 8.14 Personnel OTV........................................................................................................ 236 Figure 8.15 Total Transportation Cost Summary (in “1980s” millions).....................................236 Figure 8.16 SPS Space Transportation Costs..............................................................................237 Figure 8.17 Development Planning (in 1980)............................................................................. 237 Figure 8.18 Ratio of Thrust to Weight for Different Propulsion Systems.................................. 252 Figure 8.19 Space Vehicles of a Lunar Transportation System................................................. 253 Figure 8.20 Nuclear Electric LTV.............................................................................................. 254 Figure 8.21 Propulsion Technology Comparison and Trip Time............................................... 254 Figure 8.22 An Example of 300 KW Solar Electric OTV.......................................................... 255 Figure 8.23 Research and Development Tasks for Space Transportation Technologies............ 257 Figure 8.24 Advanced Space Transportation Development Tasks............................................. 257 Figure 9.1 Block diagram of Reduced Order Model Design...................................................... 267 Figure 9.2 Reduced Order Model design with improved Residual Mode Filter......................... 267 Figure 9.3 All possible box truss configurations that are possible by flipping the diagonal members on each of the six faces.................................................................................................270 Figure 9.4 Top and side view of a planer tetrahedral truss......................................................... 271 Figure 9.5 Five candidate trusses. Notice concept A, C, D and E............................................. 272 Figure 9.6 Number of columns per square kilometer in a tetrahedral truss as a function of column length-............................................................................................................................. 272 Figure 9.7 (a) Beam Deployment Concepts (b) Tetrahedral Fold............................................. 274 Figure 9.8 (a) Octet Fold (b) Parabolic Surface Truss............................................................... 275 Figure 9.9 (a) Fabrication Method (b) 2-Dimensional Deployment........................................ 275 Figure 9.10 (a) Modularized Inflatable (b) Rigidized Inflatable............................................... 276 Figure 9.11 Adaptive structure................................................................................................... 276
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