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Career Officer
Join Date: Jun 2012
Posts: 3,489
# 76
12-03-2012, 10:11 PM
With currently existing technology, no new materials or science needed, the cheapest per-ton launch vehicle we could build would use nuclear pulse propulsion. An Orion Drive could easily put 4000+ tons into orbit, and beyond. 20,000 ton Orion ships were theorized.

Of course, I don't expect anyone to actually build and launch one of these things.