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Lazarus wrote: So back to the initial point, you can't increase the pressure of the hydrogen gas indefinitely. At a certain point the pressure would interfere with sublimation. Thus there is a maximum effective pressure which means a maximum exhaust velocity and a maximum ISP of around 1600. That's why to get the higher ISPs you have to use plasma, fusion, and antimatter drives.
Lazarus wrote: Mainly that the idea that the only weight is the mass of the hydrogen and the nozzles is not correct.
2.5% of the ship's mass may not seem like these components are taking up much weight but since the nozzle for a metallic hydrogen ship only take up around 3-3.5% of the ship (I'm just guestimatting .5-1% for the mass of the ship for the tank walls) those parts are pretty significant.
ORCACommander wrote: actually with our current tech level ball bearings are more reliable and longer life than magnetic bearings
Zoolimar wrote: Bridge (or "bridge" in case of infomorphs) of the ship probably has additional internal shielding that can alleviate lesser hits. And any hit by a proton beam that goes through armour layer will bear a risk of charges with varying power levels.
Chernoborg wrote: I put up a rough sketch of a bulk carrier design I've been working on. Would this http://eclipsephase.com/sites/default/files/bulkcarrier01_1_0.jpg be like what you're looking for? I'm working on putting labels and explanations on there, as well as probably moving the bridge module to its own page, but I've been itching to get it on here for a while now.
ThatWhichNeverWas wrote: A decent start at the very least. I'm looking forward to seeing where you go with it :D