Skylab Apollo CSM

Skylab Apollo CSM. For Skylab, the Apollo CSM went through a number of changes. The most obvious change was the use of white thermal control paint on the side of the spacecraft that would face the sun while docked to the station.

This version also removed the S-band antenna and reconfigured the tanks in the Service Module to allow the spacecraft to reboost Skylab. They also added a water tank to store the byproducts of the fuel cells inside the SM to avoid contaminating the environment around the station.