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The First Step in Creating a Space Age - Treat Earth as a Planet
On Nov 7, 5:38*pm, William Mook wrote:
There are about 10,000 large shipping vessels that carry a total of 1.1 billion dead weight tons. *This is about 110,000 tons each. *At $200 million each this is a total infrastructure cost of $22 trillion. * These deliver 15 billion tons of cargo per year taking 45 days to cycle. We are contemplating 16 million airships carrying 40 tons each - 0.64 billion dead weight tons - having a cycle time of 2.25 days delivering delivering 140 billion tons of cargo per year - with far greater flexibility than is possible with sea going ships. *If the same $22 trillion is allocated to these 16 million airships, we have a target cost of $1.375 million per ship - in these quantities. "We" Can you be a little more specific as to who or whomever this "We" represents? Right for now it seems "We" = William Mook ~ BG |
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