Apollo CSM (top) and L2 (drawn to scale). Command ships for the Moon voyage.
<a href="//commons.wikimedia.org/wiki/User:Fred_the_Oyster" title="User:Fred the Oyster">Fred the Oyster</a>
2014-08-24 14:21:16
<a rel="nofollow" class="external free" href="http://ston.jsc.nasa.gov/collections/TRS/_techrep/RP1357.pdf">http://ston.jsc.nasa.gov/collections/TRS/_techrep/RP1357.pdf</a>