SPS Concept Development Reference System Report

Thruster modules for the self-power system are attached to each of the four corners of the module. An annealing device gantry is installed on each module. Construction of the antenna takes place in parallel with module construction. The first antenna is completed during construction of the fourth satellite module; the second antenna is completed with the eighth module. The antenna is indexed laterally through the facility one bay at a time. When a full width of bays is constructed the antenna is indexed longitudinally out of the facility so that the next strip of bays can be assembled. When the antenna is completed, it will be located at the proper position so that it can be mated to the yoke. The yoke for the antenna is constructed in the module construction facility because of its large dimensions. This requires the yoke to be made between the third and fourth module and between the seventh and eight modules. Following yoke construction, it is moved to the side of the module facility. At that time, either the fourth or the eighth module will be constructed. During the construction of these modules, the antenna is completed so that it can then be attached to the yoke. After five bays of either the fourth or eighth module have been completed, the antenna/yoke combination can then be attached to the module in its required location. Construction of two more rows of bays pushes the antenna outside the facility where it then can be hinged over the module for its transfer to GEO. In addition to the construction base facilities, the LEO base includes crew modules, work modules, cargo handling/distribution equipment/ vehicles and base subsystems. The LEO construction base includes five primary crew modules. The modules have an earth atmosphere environment and are sized to accommodate crew sizes between 50 and 100. The modules have dimensions of 17m diameter and up to 23m in length.

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