Difference between revisions of "Spar"
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[[Ballast]] | [[Ballast]] | ||
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| + | [http://www.globalsecurity.org/military/systems/ship/platform-spar-comp.htm Compared spar buoys] | ||
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| + | [http://www.globalsecurity.org/military/systems/ship/platform-spar-comp2.htm More spar buoys details] | ||
