Figure V-6.- Typical SPS construction sequence - truss configuration. Each element contains or consists of equipment that is used to perform certain functions and tasks commensurate with the required step-by- step sequential construction operations. Figure V-7 illustrates a construction base concept for a column/cable configuration. It consists of six construction facility sites for the solar energy collection system (SECS) and one for each microwave power transmission system (MPTS). Logistics and integration management facilities are combined at two locations. Habitability facilities are combined with each of the other facilities. 1. Construction and manufacturing facility.- The construction and manufacturing facility provides the capability for the direct construction operations. The crew monitors automated manufacturing and construction functions with a crew override capability in the event of malfunction. The facility consists of six space frames supporting the machines for fabricating the structural elements of the SPS collector system. Preprocessed stock is supplied to the machines and processed into the final structural trusses. These trusses are connected to form the larger trusses of the primary structure. Cable rigging devices are also operated from the facility. The packages of solar cell blankets
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