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Post by Kerr on May 28, 2017 11:19:13 GMT
Hello!
I am searching for a engine/drive for my hypothetical torch missiles. Criteria: Exhaust Velocity/Isp: 4-6,000km/s / 400-600k seconds. Thrust: +5 Meganewtons Engine mass: 10-11,5t
Currently my candidates are: 90% UTB NSWR MAX: Got matter beamed/ Might be still in the ring Orion-style: Also got matter beamed Antimatter Beam Core: Perfect, but a little bit expensive, and dangerous. (But when I look at all the the terawatt laser stars and their reactors..)
Ideas?
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Post by samchiu2000 on May 28, 2017 11:27:16 GMT
I highly recommend your to read and use stuffs in this thread to make your torch missiles~
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Post by Kerr on May 28, 2017 11:32:45 GMT
I highly recommend your to read and use stuffs in this thread to make your torch missiles~ I am not talking about ingame missile but instead a hypothetical one, the Fusion drives are quite OP, but they require massive mass investment to ignite such a fusion process, the NSWR part is good, but it looks like the low powered 20% version. And my game keep crashing when trying to install them.
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Post by samchiu2000 on May 28, 2017 11:38:01 GMT
I highly recommend your to read and use stuffs in this thread to make your torch missiles~ I am not talking about ingame missile but instead a hypothetical one, the Fusion drives are quite OP, but they require massive mass investment to ignite such a fusion process, the NSWR part is good, but it looks like the low powered 20% version. And my game keep crashing when trying to install them. Installing them aren't too hard. Just paste these chemical reaction and fluid data at the starting of those txt files and then cilck on Enter twice and then save. And don't be lazy of backup your files, or it may be quite painful if things go wrong...
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Post by The Astronomer on May 28, 2017 11:46:09 GMT
Criteria:Exhaust Velocity: 4,000-6,000km/s Thrust: >5 MN Engine mass: 10-11.5 t This could be what you're looking for. Exhaust Velocity: 20,100 km/s Thrust: 5.00 MN (Capital size) Engine mass: 1.39 t (no gimbal) Thrust power: 50.3 TW Diameter: 50.0 m NSWR won't work. Its exhaust velocity is around 50 km/s. Amat rockets would overshoot the goal, so do this fusion rocket, but is that something to worry? I don't think so
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Post by nerd1000 on May 28, 2017 11:47:11 GMT
I suggest going full Alastair Reynolds. The Conjoiner Drive from his Revalation Space series is powered by a wormhole leading back in time to the universe a few milliseconds after the big bang. The drive siphons off some of the primordial quark-gluon plasma, uses it to heat gas taken from the interstellar medium via a bussard ramscoop, then dumps the whole lot out through some kind of super efficient nozzle to produce an exhaust beam so tightly collimated that I'm surprised nobody thought of using it as a weapon. That should give you the performance you need . More seriously, I suggest a Laser lightcraft. The missile has a parabolic reflector on the tail. The mothership/base directs a high powered laser pulse at the reflector, which focuses the energy onto a pellet of solid fuel. The fuel instantly flashes to plasma and accelerates out the back via magnetic nozzle. Your exhaust velocity is bounded only by your mirror (which will need to be very large to avoid being vaporized by the laser, but can also be very thin and lightweight like a solar sail) and how much energy you can dump into the plasma before it escapes. With this system the missile does not need to carry a terawatt range power plant of its own, which saves a great deal of weight. Once the missile is outside effective boost range the lightcraft drive section separates and the missile uses some other propulsion system (maybe a more sane NSWR or Orion drive) for terminal maneuvering.
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Post by The Astronomer on May 28, 2017 11:54:37 GMT
The most important thing in installing those materials is to install ALL of the elements required. Ions.txt, Fluids.txt, Fissile.txt, all in the CDE folder found in %appdata%.
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Post by Kerr on May 28, 2017 12:00:27 GMT
Criteria:Exhaust Velocity: 4,000-6,000km/s Thrust: >5 MN Engine mass: 10-11.5 t This could be what you're looking for. Exhaust Velocity: 20,100 km/s Thrust: 5.00 MN (Capital size) Engine mass: 1.39 t (no gimbal) Thrust power: 50.3 TW Diameter: 50.0 m NSWR won't work. Its exhaust velocity is around 50 km/s.Amat rockets would overshoot the goal, so do this fusion rocket, but is that something to worry? I don't think so NSWR (90% UTB) Exhaust Velocity: 4700km/s Isp: 479,103 s Thrust: 13 MN. Thanks! But how do I ignite the fusion reaction in that rocket?
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Post by Kerr on May 28, 2017 12:12:46 GMT
@the Astrogator I already got the fusion drive etc. working. The Data/... thing was a bit confusing, didn't know they meant the game folder and not the mods section in %appdata% nerd1000 A Laser plasma ablative missile then? Yes I already considered that but I don't know how to calculate the needed energy of the laser for a given amount of thrust/exhaust velocity.
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Post by The Astronomer on May 28, 2017 12:15:40 GMT
@the Astrogator I already got the fusion drive etc. working. The Data/... thing was a bit confusing, didn't know they meant the game folder and not the mods section in %appdata% nerd1000 A Laser plasma ablative missile then? Yes I already considered that but I don't know how to calculate the needed energy of the laser for a given amount of thrust/exhaust velocity. AppData\Roaming\CDE\Mods\Data\Materials <--- All of them here. Haven't tried the 90% thing, but the normal Zubrol crashes my game when creating a new nuclear module, so I'm not using it.
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Post by Kerr on May 28, 2017 12:19:20 GMT
@the Astrogator I already got the fusion drive etc. working. The Data/... thing was a bit confusing, didn't know they meant the game folder and not the mods section in %appdata% nerd1000 A Laser plasma ablative missile then? Yes I already considered that but I don't know how to calculate the needed energy of the laser for a given amount of thrust/exhaust velocity. AppData\Roaming\CDE\Mods\Data\Materials <--- All of them here. Haven't tried the 90% thing, but the normal Zubrol crashes my game when creating a new nuclear module, so I'm not using it. Weird, when I did that my game just crashed all the time, when I placed them in the game folder it worked just fine. same with NSWR NSWR: the 90% doesn't exist for CoaDe, I am not talking about a missiles for CoaDE but a system that would work in real life.
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Post by Kerr on May 28, 2017 13:58:46 GMT
Does anyone have other ideas except Fusion drives? They are just too massive for use, they require giant apparatuses to start a fusion reaction.
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Post by samchiu2000 on May 28, 2017 14:00:30 GMT
Does anyone have other ideas except Fusion drives? They are just too massive for use, they require giant apparatuses to start a fusion reaction. Actually 5 MN is a bit too large for missiles. Maybe something like 100 KN is sufficient for a medium size missiles.
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Post by The Astronomer on May 28, 2017 14:02:10 GMT
Does anyone have other ideas except Fusion drives? They are just too massive for use, they require giant apparatuses to start a fusion reaction. For one, nobody's going to use 5 MN rockets on their missiles. Such rocket will produces some extreme acceleration. For example, a massless 5 MN rocket on a 10 tons missile will have initial acceleration of 500 m/s, enough to grind the payload into dust. Guess you'll be using some 100 kN Zubrol .9 NSWR in your missiles. Unrelated, however, get Cooled Quartz & Uranium Hexafluoride from the Complete Compendium of Modded Materials. You seem like you could use some gas core NTRs. Still that pathetic exhaust velocity, but at least better than stock solid core NTRs.
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Post by Kerr on May 28, 2017 14:13:57 GMT
The word "missile" is a bit misguiding in this place. the Torch missile will weigh between 25 and 50 tons. having multiple tons of payload, most likely casaba howitzers. This is a very extreme case of torch missile designed to cover one Astronomical unit in under 24 hours.
That's like 50G, the electronics in the Exacto Smart bullet can survive accelerations of 40 thousand G. This missile is hypothetical far future missile, in a setting where Torch drives like orion are commonplace. I am currently not interested on how fast I can make a CoaDE missile. Anything better than NTR seems to never hit something. My current design has only a dry acceleration of 41G.
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