Saturn C2 BG WIP 001

A paper model of a Saturn C2 booster. One of the variants sometimes referred to as a "Saturn 2".

This model features the Big Gemini capsule instead of the usual Apollo C/SM.

Saturn 2 was designed as a logical stepping stone on the way to the moon, but changes to the planned moon landing program allowed this design to be skipped over, along with the Saturn 3 and Saturn 4 launch vehicles.

The Big Gemini was designed as a resupply vehicle for orbital space stations. When post-Apollo budget cuts killed a wide variety of space projects, the Big Gemini went away as well.

This design of Big Gemini combined with a Saturn 2 is my interpretation of a "What-if" resupply craft for the Lunar Skylab program.


1st Stage- A Saturn 1b first stage.
2nd Stage- A streched tank S4b stage with 2 of the J2 engines.
3rd Stage- An improved S4 stage with 6 of the RL-10 engines.
4th Stage- Big Gemini resupply vehicle.