Mar 042019
A scale comparison between the Saturn V and Sea Dragon CD models I’m working on for a 1/7o0 scale kit for Fantastic Plastic. The Sea Dragon would have had about four times the payload of the Saturn V, despite being *gigantic* compared to the Saturn V. This was due to the fact that the Sea Dragon was, by design, a *low* performance vehicle, using simple pressure feed. the result was that everything was necessarily gigantic… giant engines, tanks, wall thicknesses, plumbing lines, etc. While the main propellant feed lines for most rockets are measured in inches, up to a foot or two, in diameter, the LOX and RP-1 lines at the base of the Sea Dragon were about ten *feet* in diameter.
