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Old 08-23-2019, 12:43 PM   #8
Rupert
 
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Join Date: Aug 2004
Location: Wellington, NZ
Default Re: [Spaceships] Eclipse Phase Spacecraft

Quote:
Originally Posted by AlexanderHowl View Post
In GURPS, there is nothing realistic about a 2,000 metric tons container holding 150 metric tons of antimatter at TL11 and nothing feasible about having 150 metric tons of antimatter. In Ultratech, one milligram of antimatter requires a trap that masses 9 kg and costs $20,000 (one milligram of antimatter also costs $25,000). 150 metric tons of antimatter would require a 1.35 billion metric ton trap (costing $3 quadrillion) and would cost $3.75 quadrillion.
In Spaceships, assuming that 'Matter/Antimatter' fuel is 50% of each, and that the matter is of negligible cost, antimatter costs $20 trillion per ton. That's about $22 million per gram (and ~$22,000 per milligram). Of course, a fuel tank to contain it costs no more than any other fuel tank, Spaceships not being super-detailed. Given the other prices for fuel, antimatter-catalyzed fuel includes about 0.9 milligrams of antimatter per ton, and antimatter-boosted fuel (what this ship is shown as using) includes about half a gram of antimatter.

This implies that the antimatter destroyer with 9,500 tons of fuel carries perhaps 10 kilograms of antimatter, and thus 'only' go up in a 430-megaton explosion if the antimatter containment blows.
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Last edited by Rupert; 09-06-2019 at 07:18 PM.
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