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Post by samchiu2000 on Mar 18, 2018 3:37:13 GMT
First, to be honest i didn't dig very deep into the series but it is amazing, and i wonder if i can recreate stuff in the series in CDE, so i created this challenge. So here's the rule: 1.The projectile our rail gun using must be a 2-pound tungsten. 2.The rail gun power requirement must not excess 10 TW. (Well you can virtually ignore this limit, i think  ) 3.The rail gun must not be longer than 100 meters and wider than 25 meters. 4.The mass of the rail gun must not excess 12500 tons. 5.Modded material by Rocket witch or Fgdfgfthgr is allowed. 6.Both coil gun and rail gun designs are welcomed for this challenge.
And faster the projectiles, the better!ALL DESIGNS ARE WELCOMED! ENJOY!  PS: And of course you can mod your limits.txt! |
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rottenlaserstaruser
New Member
Finally a place on the internet non toxic enough I don't have to use a radiation shield
Posts: 22
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Post by rottenlaserstaruser on Mar 18, 2018 17:52:24 GMT
2 pounds is more in the coilgun range in my opinion, can we use a coilgun?
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Post by Enderminion on Mar 18, 2018 18:30:53 GMT
what velocity should we aim for?
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Post by Fgdfgfthgr on Mar 19, 2018 5:23:42 GMT
is there any limit on the mass&cost of the railgun?
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Post by someusername6 on Mar 19, 2018 7:09:51 GMT
It seems that if you have 10 TW, and if you are willing to mine a small asteroid for the barrel, you can break the light speed. Some limit editing required. The small cylinder below isn't a turret, it is just the skybox.  RailgunModule 10.0 TW 52mm Railgun
UsesCustomName false
PowerConsumption_W 1e+13
Rails
Composition Magnesium Lithium Aluminum
Thickness_m 20
Length_m 5e+06
BarrelArmor
Composition Graphite Aerogel
Thickness_m 5000
Armature
Composition Tungsten
BoreRadius_m 0.026
Mass_kg 0.90714
Tracer Tungsten
Payload null
Loader
PowerConsumption_W 1e+13
ExternalMount true
InternalMount false
TargetsShips true
TargetsShots true
Perhaps you might want more strict limits? |
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Post by Fgdfgfthgr on Mar 19, 2018 8:58:47 GMT
I would say, it's very hard to design a railgun with that huge ammo... Especially when it creates stronger pressure in the barrel than most of other materials.
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Post by samchiu2000 on Mar 19, 2018 10:08:21 GMT
Alright now a lot of thing have to be fixed in this challenge. 1.Both rail gun and coil gun are now allowed. 2.The length limit become compulsory and is reduced to 100 meters. 3.A width limit of 25 meters is also added based on the screenshot from the series. Well there is not velocity should aim at because the rule is THE FASTER THE BETTER!I set the 10 TW limit because i used these links as reference: expanse.wikia.com/wiki/Donnager-class_battleshipexpanse.wikia.com/wiki/Rail_Gunexpanse.wikia.com/wiki/Epstein_DriveAs the first link suggest, the iconic Donnager class battleship in the series use two rail guns as weapon and four Epstein drive as propulsion system. With four drives having 22 TW of energy output combined, if the battleship use them as a power source of the gun, each gun will have 11 TW of power, and in the series the battleship's command deck which all the high ranking office were, suffer from power shortage which the gun is loading and firing, which mean that most of the power generated on board the ship is transferred to the big gun when it is tearing its enemies, so i simply assume that almost all of the 22 TW generated by the ship is used to serve the rail gun, which imply that each gun is having 11 TW to dispose of, and finally i rounding it off to 10 TW. For the 500 meters limit, it's actually the length of the battleship and the gun seems to be less lengthy than the ship itself, and i decided to change it to 100 meters after some very rough estimations from the screenshot in the series. |
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Post by samchiu2000 on Mar 19, 2018 10:17:19 GMT
It seems that if you have 10 TW, and if you are willing to mine a small asteroid for the barrel, you can break the light speed. Some limit editing required. The small cylinder below isn't a turret, it is just the skybox. Perhaps you might want more strict limits? New limits are now added. And your designs always make my day man~ |
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Post by someusername6 on Mar 19, 2018 15:51:44 GMT
It's been quite a while / I am rusty, but here is a vaguely more physical go at it. Coilgun firing very large rods. No turrets or external ammo included. Main limit mod is to increase the limit on the number of stages to 20000. At this point CDE sometimes crashes, complaining it is out of memory.  RadiationShieldModule 778 µm Diameter Tungsten Radiation Shield
UsesCustomName false
Composition Tungsten
Dimensions_m 0.0003892 99
CraftBlueprint 99m 2lb Tungsten Rod
Modules
778 µm Diameter Tungsten Radiation Shield 1 0 null 0 0
Armor
Shape Cylindrical
Concave false
CoilgunModule 10.0 GW 99m 2lb Tungsten Rod Coilgun
UsesCustomName false
PowerConsumption_W 1e+10
Coil
Composition Reinforced Carbon-Carbon
WireRadius_m 0.0025
NumberOfTurns 1
NumberOfLayers 1
NumberOfStages 20000
BarrelArmor
Composition Graphite Aerogel
Thickness_m 3.63
Armature
Composition Iron
BoreRadius_m 0.03
Mass_kg 0.907
Tracer null
Payload 99m 2lb Tungsten Rod
Loader
PowerConsumption_W 1e+07
ExternalMount true
InternalMount false
TargetsShips true
TargetsShots true
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Post by samchiu2000 on Mar 21, 2018 15:21:13 GMT
So this is what it got with the rule i set after messing around in the railgun design for a while. I seldomly design rail guns since i suck at it, yet it is quite a fun after i tried it out.  |
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Post by samchiu2000 on Mar 22, 2018 8:22:33 GMT
One more limit added: The mass of the gun design must not excess 12500 tons (Which is about 1/20 of the mass of the Donnager battleship).
And i really have no idea about the price limit because i just don't how much should these big guns cost.
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Post by Fgdfgfthgr on Mar 22, 2018 9:09:26 GMT
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Post by samchiu2000 on Mar 22, 2018 9:15:53 GMT
 That's super impressive performance! (Especially that 37.4 km/s muzzle velocity!) |
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That's super impressive performance! (Especially that 37.4 km/s muzzle velocity!)