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Post by ash19256 on Apr 7, 2017 19:04:52 GMT
So far I used 235 for the better power density, but my ship costs tend to be ludicrously high. From what I gathered its actually the hydrogen fueltanks that are the most expensive parts I use. They are mostly stock, and I think UHWMP, which would explain it. Switching hydrogen for either hydrogen deuteride or methane should drastically lower cost. I personally prefer methane over Rp-1, decane and hydrogen deuteride because it's cheap, denser than hydrogen deuteride, but still gives a higher exhaust velocity than decane. Actually, using the UTaC U-233 cermet in Rocket Witch 's modded materials thread allows you to get an RP-1 NTR that generates a higher exhaust velocity than the maximum that U-233 Dioxide/Decane can produce, mostly because you can run the engines hotter than U-233 Dioxide allows, which makes your NTRs more efficient. Not to mention, you can actually use something like a 2.70+e20 neutron flux with the engines which makes your engines massively more efficient in terms of fissiles.
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