13. Can solar power satellites be made from lunar materials only? 14. Is it necessary to construct equipment other than the self reproducing manufacturing facility before solar power satellite construction starts? 15. Can the completed manufacturing facilities produce anything needed from raw materials, with no further supply from earth? 16. Factor of 1.5 for orbital transfer vehicle fuel mass. 17. Batteries or other provision for low earth orbit construction with space manufacturing facility. References [1] J. Peter Vajk et al., "Habitat and Logistic Support Requirements for the Initiation of a Space Manufacturing Enterprise," in Space Resources and Space Settlements, NASA SP-428, eds. John Billingham et al. (Washington, D.C.: Government Printing Office, 1979), p. 65. (Table 2) [2] Ibid., p. 69. (Table 3) [3] Gerard K. O'Neill, "Recent Work on Use of Lunar Materials for SPS Construction," in Final Proceedings of the Solar Power Satellite Program Review (Washington, D.C., Government Printing Office, 1980), pp. 223-6. [4] Michael J. Gaffey, "An Assessment of Near-Earth Asteroid Resources," in NASA SP-428, p. 199. [5] O'Neill, p. 224. (Text and table) [6] Ibid., p. 225. [7] Ibid. [8] Ibid. [9] Vajk, p. 65. (Table 2) [10] Ibid. [11] Richard D. Johnson and Charles Holbrow, eds.. Space Settlements, A Design Study, NASA SP-413 (Washington, D.C.: Government Printing Office. 1977), p. 146. (Table 6-3)
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