10-15-2018, 01:13 AM
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Avid Builder
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Join Date: Nov 2017
Posts: 610
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Quote:
Originally Posted by MarkB.
I'm sure Luke Strawwalker will chime-in on this, but the short version is that Saturns II, III and IV were designs that didn't make the cut as the lunar mission evolved. I'm pretty sure the Saturn V was the Saturn IV with an extra engine so the "number of engines" reason is not that far off.
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Spot on. The Silverstein Committee proposed eight designs for the Saturn launch vehicles (see pic below). C-1 became the Saturn 1. A refinement of the C-1 became the Saturn 1B. C-5 became the Saturn V. If C-2, C-3, and C-4 had been built they might have been the Saturn II, III, and IV.
More info in this Wikipedia article, scroll down to Silverstein Committee:
https://en.wikipedia.org/wiki/Saturn_(rocket_family))
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