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Old 08-27-2011, 05:32 PM
luke strawwalker's Avatar
luke strawwalker luke strawwalker is offline
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Finally finished with the corrugated wraps. Now she's starting to look like a Saturn V!

First a little pic of a proposed alternative vehicle to Saturn V-- the INT-20. This would have mated a Saturn V S-IC first stage with either 3 or 4 F-1 engines (three inline like Atlas, or four with the center engine missing and it's plumbing capped off-- most versions showed four) topped by an S-IVB Saturn V third stage. This vehicle would have been capable of lifting 78,000 pounds to orbit with three F-1 engines or 132,000 pounds to orbit with four F-1 engines. It's a neat prototype in its own right, as it too was proposed for a replacement for Saturn IB, since Saturn IB had VERY LITTLE payload capability with a CSM on top and couldn't even lift a lunar capable CSM (to the cut the weight, only half the Service Module's regular SPS fuel load was carried when the Apollo CSM was flown on Saturn IB). This vehicle would have used the same stages and assembly lines as Saturn V (in fact the INT-20 S-IC stage was completely interchangeable between the Saturn V configuration and the INT-20 configuration-- there was basically a modification "kit" to make it an INT-20 first stage from the basic Saturn V configuration) and therefore would have been very economical, because unlike the Saturn 1-F or Saturn II, it would not have required a new stage assembly line and tooling (The 1-F would have been good to have if uprated Saturn V's were used, as the first stage of the 1-F doubles as an LRB for the Saturn V itself, and is manufactured almost identically to the S-IC, just smaller, simplifying things and reducing costs (theoretically). Here's the pics of the Saturn in INT-20 mode...


And finally, the 'all up' Saturn V with the S-II stage included, supported by the S-IC and topped by the S-IVB and Apollo stack.


Later! OL JR
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