Materials
Revision as of 22:56, 3 August 2008 by 70.90.174.30 (talk | contribs)
Contents
Structure
Buoyancy
Ballast
- Scrap Iron
- Concrete
- Earth
Scrap iron or lead would make the best ballasts from a physical standpoint, but are expensive. Concrete and earth are much cheaper. The trade off is that you need a much greater volume of material to get the same amount of ballast.
