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Post by RiftandRend on Jul 8, 2017 22:19:55 GMT
I think the challenge requirements could be modified. Instead of requiring a specific shell mass, a required projectile energy would be better. This allows lower mass higher velocity railguns and would encourage more practical weapons. I think the intent of the original poster was to incentivize railguns / coilguns with a mass other than 1 g. I also think that requiring only projectile energy would give us very massive and slow projectiles from conventional guns. I did not say that the only requirement would be projectile energy. I stated that the mass requirement should be swapped for an energy requirement. The accuracy requirement would be unchanged. I do concede that changing this would probably lead to exclusively 1 g sand guns, which isn't in the theme of the challenge.
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Post by Enderminion on Jul 8, 2017 23:49:36 GMT
accuracy is fine with Nickel microlattice
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Post by apophys on Jul 9, 2017 1:31:44 GMT
someusername6 your designs have horribly low efficiency, you should aim for 30%+ if not 40%+ Is that even possible on capacitor coilguns? For railguns, the 50 km/s flak railgun that appeared on my Toothpick drone and on my tournament entry has 45.2% efficiency. I expect coilguns can do similarly.
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Post by someusername6 on Jul 9, 2017 15:13:00 GMT
Entry for the heavy category. CoilgunModule 1.000 GW 3mm Turreted Capacitor Coilgun UsesCustomName false PowerConsumption_W 1e+009 Capacitor DielectricComposition Hafnia Dimensions_m 0.89 0.84 Separation_m 3.9e-006 Coil Composition Reinforced Carbon-Carbon WireRadius_m 0.0477 NumberOfTurns 17 NumberOfLayers 1 NumberOfStages 10 BarrelArmor Composition Diamond Thickness_m 0.227 Armature Composition Magnetic Metal Glass BoreRadius_m 0.0018 Mass_kg 0.025 Tracer Potassium Chloride Payload null Loader PowerConsumption_W 2700 ExternalMount false InternalMount false Turret InnerRadius_m 0.677 Extruded true ArmorComposition Aramid Fiber ArmorThickness_m 0.0165 MomentumWheels Composition Osmium RotationalSpeed_RPM 5800 AttachedAmmoBay Capacity 8000 Stacks 1 TargetsShips true TargetsShots true
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Post by jtyotjotjipaefvj on Jul 16, 2017 22:41:15 GMT
Can we pretend this is a railgun? (or rather have a category for conventional guns?) They tend to get far better energy output per second due to more efficient loaders, and accuracy is not as strictly bound to the projectile velocity as the game claims, since very few designs can pull high-g maneuvers. Also high projectile masses are way more fun than 1-gram railgun #13214.
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Post by cyborgleopard on Jul 16, 2017 23:55:15 GMT
Can we pretend this is a railgun? (or rather have a category for conventional guns?) They tend to get far better energy output per second due to more efficient loaders, and accuracy is not as strictly bound to the projectile velocity as the game claims, since very few designs can pull high-g maneuvers. Also high projectile masses are way more fun than 1-gram railgun #13214. I will happily accept your conventional cannon and open a category for them on the leaderboards. I am running a thread having to do with armor tests and at some point I am wanting to test projectile mass vs armor survival time, and I may or may not have opened this competition to get a good collection of guns firing heavier projectiles to test with.
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Post by jtyotjotjipaefvj on Jul 17, 2017 21:30:09 GMT
I think spread angle would be a better factor for determining range for heavy guns. Since they're supposed to be used against big targets with low acceleration, dodging is not a real issue. A 3 km/s gun can easily hit targets over 100km away provided they have low enough acceleration. This allows railgun designs such as this (fitting in the heavy category): It can easily penetrate a whipple shield with a 20cm maraging steel liner due to the ridiculous fire rate and projectile energy, provided you can get the turret to focus on a single point, such as when aiming at engines through a ship's nose. I'm not sure but the ~1m long projectile might contribute towards penetration efficiency too, at least it should decrease plasma shocking on whipple penetration. Below is an image of a ship with the 20cm steel armor getting cored in less than half a second at ~180km range (after the projectiles eventually arrived at the target of course.)
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Post by Rocket Witch on Jul 18, 2017 19:16:16 GMT
I made this monster some time ago. A 31½" howitzer firing a 100kg shot with an equally heavy propellant charge (though an actual railway/naval gun of these dimensions would probably lob a 5 ton shell). I'm unsure it counts even as heavy; shot masses short of tens of kilograms isn't what I had in mind. Maybe there should be a superheavy category!
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Post by Durandal on Jul 27, 2017 3:21:20 GMT
Here's a light conventional gun submission. To meet the challenge requirements I had to replace a 10cm sgel barrel sleeve with diamond, but it actually improved accuracy a bit. I have multiple standardized versions of the cannon loaded with different types of shells (flak, rocket-assisted NEFP, inert rad shield slug, ect.) all with similar velcoity and accuracy specs. I find the 105t NEFP shell to be my bread and butter though, just like with micro-missiles. Also, here it is mounted on a certain experimental drone.
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Post by alias72 on Jul 30, 2017 15:21:39 GMT
I'm not sure if there is a micro category but I have this on hand so...
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Rorie
New Member
Posts: 19
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Post by Rorie on Jul 31, 2017 3:49:18 GMT
Have no idea how I made these. I know they don't qualify. But the punch they pack... 17.0 MJ and 20.8 MJ I felt the need to share them. The 50.0 MW one was made by optimizing the 15.0 MW one. They do use graphene for the aperture though so that's kind of cheating.
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Post by RiftandRend on Aug 2, 2017 10:02:40 GMT
Have no idea how I made these. I know they don't qualify. But the punch they pack... 17.0 MJ and 20.8 MJ I felt the need to share them. The 50.0 MW one was made by optimizing the 15.0 MW one. They do use graphene for the aperture though so that's kind of cheating. Is the tungsten rhenium barrel amor for style or practicality? If it's the latter, boron filament, diamond, and graphite aerogel are superior. Graphene is practically cheating as the other desgins don't use it and its an iffy nanomaterial, but the matierials found here childrenofadeadearth.boards.net/thread/1364/materials-mimicking-complex-armatures-experimental may be a more realistic substitute.
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Rorie
New Member
Posts: 19
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Post by Rorie on Aug 2, 2017 16:41:45 GMT
Have no idea how I made these. I know they don't qualify. But the punch they pack... 17.0 MJ and 20.8 MJ I felt the need to share them. The 50.0 MW one was made by optimizing the 15.0 MW one. They do use graphene for the aperture though so that's kind of cheating. Is the tungsten rhenium barrel amor for style or practicality? If it's the latter, boron filament, diamond, and graphite aerogel are superior. Graphene is practically cheating as the other desgins don't use it and its an iffy nanomaterial, but the matierials found here childrenofadeadearth.boards.net/thread/1364/materials-mimicking-complex-armatures-experimental may be a more realistic substitute. It's based of a Railgun I made a REALLY long time ago, so it's not the most fine tuned of things. I Really just made it for fun and then became surprised with the results. Thus I deiced to share said results.
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Post by madmike on Aug 2, 2017 19:30:05 GMT
I made these a little while ago as experimental offensively massive conventional cannons. The nuclear gun is a bit redundant with missiles, but it's entertaining to use. The solid-shot 120cm/60 gun is surprisingly effective against capitals, though. It will pretty easily penetrate lengthwise through even heavily-armored ships and just obliterate the internal modules. I'll post the .txt files if I can figure out why the game isn't letting me export these. Oh, by the way, the turret designs were just experiments and can probably be disregarded.
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Post by AdmiralObvious on Aug 2, 2017 20:58:17 GMT
I made these a little while ago as experimental offensively massive conventional cannons. I'll post the .txt files if I can figure out why the game isn't letting me export these. Oh, by the way, the turret designs were just experiments and can probably be disregarded. The output (on PC) goes into /AppData/Raoming/CDE It's usually hidden by default, so you will probably need to unhide it to get to it.
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