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A five-year artificial-gravity flight program spanning from the start of Fiscal Year (FY) 1966 through the end of FY 1970 would cost a total of $4.050 billion, Olling told MSC managers. Even if four space stations were launched on expendable Saturn C-5 rockets during the program, station cost would account for only $1.273 billion of Project Olympus’s total cost. Crew rotation and logistics resupply cost would account for the remaining $2.777 billion. Summing up his findings, Olling wrote that the “launch vehicle is [the] major cost item compared to [the] logistic spacecraft” and that a “reusable launch vehicle could contribute large economies” (that is, large savings).
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