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Post by shurugal on Nov 24, 2016 20:17:25 GMT
Been fiddling around trying to make a compact single-fuel engine for use in missiles... I think I made a ridiculous....  |
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Post by altiarsaint on Nov 24, 2016 21:01:14 GMT
Bump, I have a bunch of enormous engines but no compact ones.
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Post by shurugal on Nov 24, 2016 22:33:26 GMT
It is amazingly useful, the thrust/mass ratio is bloody ridiculous, so you can stack a dozen of them on a warship and get a fairly efficient thrust source.
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Post by coaxjack on Nov 25, 2016 0:01:20 GMT
 Light, cheap, decent power. |
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Post by magusunion on Nov 25, 2016 0:18:47 GMT
Thanks for sharing this! Been working on a heavy-yet-fast torpedo setup today. Maybe this might be the key to evade lasers after all.
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Post by Pttg on Nov 25, 2016 0:24:03 GMT
Did someone say compact?  |
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Post by Durandal on Nov 25, 2016 0:38:35 GMT
Thanks for sharing this! Been working on a heavy-yet-fast torpedo setup today. Maybe this might be the key to evade lasers after all. I've been having the same thoughts. |
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Post by shurugal on Nov 25, 2016 3:33:13 GMT
an absurdly tiny decane RCS thruster:  |
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Post by shurugal on Nov 25, 2016 3:58:23 GMT
Here we go, i feel like this is something to be proud of:  and with a gimbal...  |
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Post by goduranus on Nov 25, 2016 7:14:59 GMT
How to improve? Use U-233 Dioxide as fuel to lower cost; Makes Throat Radius much smaller to reduce overall size; Use Diamond Chamber and increase thickness as needed for strength; Use Boron Pump and make it spin faster, but decrease its radius; Increase Expansion Ratio and push exhaust velocity to above 5.25km/s, 5% is a lot of difference. Edit: Oh hey, your is so light My entrant for a compact 4MN Decane NTR, I think it's 38x38x90cm  |
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Post by dwwolf on Nov 25, 2016 8:59:53 GMT
OP: 834 kilowatt radiation hazard LMAO.
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Post by goduranus on Nov 25, 2016 9:06:52 GMT
It only takes 1cm of lithium-6 rad shield to stop any amount of radiation, so radiation is never a problem.
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Post by dragonkid11 on Nov 25, 2016 10:22:57 GMT
Nobody cares about the poor workers at the docks.
Clearly the real cost in personnel is in replacing them.
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Post by goduranus on Nov 25, 2016 13:38:51 GMT
I think they use robots at the docks. Every ship is nuclear, no way a human is even gonna last a single day in there.
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Post by shurugal on Nov 25, 2016 16:55:32 GMT
How to improve? Use U-233 Dioxide as fuel to lower cost; Makes Throat Radius much smaller to reduce overall size; Use Diamond Chamber and increase thickness as needed for strength; Use Boron Pump and make it spin faster, but decrease its radius; Increase Expansion Ratio and push exhaust velocity to above 5.25km/s, 5% is a lot of difference. Edit: Oh hey, your is so light My goal was at first to achieve the tiniest engine possible, then I noticed that, somehow, turning the pump faster gives it more mass (dafuq?) So I found the balance point between pump size and RPM for the mass flow I wanted at the lowest weight. Ended up being slightly larger, but with a thrust:mass ratio of 4k, who gives a shit? I made a nuclear rocket that weighs as much as an average American. Nobody cares about the poor workers at the docks. Clearly the real cost in personnel is in replacing them. Well, considering that these engines work by exhausting their primary coolant at particle-cannon velocity.... yeah, definitely no concern for station personnel. |
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