<div class="quoteheader"><div class="topslice_quote"><a href="https://elliquiy.com/forums/index.php?topic=148593.msg6739839#msg6739839">Quote from: Chrystal on 10-08-2012, 18:43:03</a></div></div><blockquote class="bbc_standard_quote">Underground storage tanks made from Marscrete. Also, don't forget that combustion requires oxygen. Things don't burn in a CO<sub>2</sub> atmosphere!<br/></blockquote><div class="quotefooter"><div class="botslice_quote"></div></div><br/>A lot of modern rocket fuels do come with their own oxygen supply built in and will burn underwater or in vacuum. Though in vacuum obviously its often more efficient to just throw away reaction mass as thrust. *Smiles* Just askin'. Want to be sure whether or not to keep a wary eye on the temperatures of the fuel tanks. *laughs*<br/><br/>Though if Julie is constantly fixing up the tunnel boring machines (have to provide more living space for the colony!) she will be underground most of the time anyway... Yeah, should be good actually. *Grins*<br/><br/>M.