Table 10.4.6 Mass and Cost Summaries for Concept 1 Figure 10.4.11 1 MW Planar Array Demonstrator. The planar shape, constructed with Space Station Freedom derived trusses, is provided as a strawman mid-term demonstrator in the 1 MW class. It is constructed in LEO with the STS and, if necessary, an additional Energia launcher. The assembly time for the truss is approximately 10.3 h (based on 1 element/minute as previously discussed), and the additional assembly is estimated at 20 h for a total of 30 h. The mass of the platform is dominated by the mass of the phased array, based on current mass and power estimates. This, however, drops dramatically as the transmitter technology advances
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