/sci/ - Science & Math

An Anon from a previous thread gave me the inspiration to create a real family of rockets. From left to right are 10, 20, 50 and 100 ton launchers. The last two are two separate concepts, one, the R-4U uses a LF/O first stage and cryogenic second stage to lift 100 tons, while the other the KLS-U is a single large cryogenic core stage with four LF/O boosters.
The KLS-U is nearly double the R-4U's cost.