Big Dumb Booster, The Sea Dragon

335 parts

The Sea Dragon was a 1962 conceptualized design study for a two-stage sea-launched orbital super heavy-lift launch vehicle. The project was led by Robert Truax while working at Aerojet, one of a number of designs he created that were to be launched by floating the rocket in the ocean. Although there was some interest at both NASA and Todd Shipyards, the project was not implemented.
Truax's basic idea was to produce a low-cost heavy launcher, a concept now called "big dumb booster." To lower the cost of operation, the rocket itself was launched from the ocean, requiring little in the way of support systems.
Despite having a 550 Ton LEO payload capacity, it would not be used to carry payloads. All the mass was taken up by a Liquid Hydrogen tank to supply fuel for Nuclear upper stages, also studied during the same era.

The main reason i decided to build this is to clear up some common misconceptions about the Sea Dragon. Here's a few;

• Sea Dragon was never truly considered possible. It was a study, and the study itself concluded that building such a rocket was implausible
• Sea Dragon did not have a payload fairing.
• Despite popular belief, Sea Dragon was not the largest rocket ever conceptualized. Other concepts from even earlier would make the Sea Dragon look tiny.
• It could not reach the moon. Or carry plutonium. I'm talking to you, FAM fans.

Another reason is to show how much you can accomplish with little parts. This craft can be considered mobile friendly at just 335 parts.

All action groups are named.
Features an expanding second stage nozzle and an inflatable first stage flare for a "soft" splashdown.
Ballast is not included yet

Hopefully this one doesnt get used without permission by a website for an article :)