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Post by uberdude9001 on Feb 18, 2017 1:59:06 GMT
In my attempts to make conventional guns practical I have created this: It fires a 10kg projectile (25mm diameter 8kg osmium penetrator with 2kg bursting charge) at 2.5km/s. This is what happens when you shoot the already overarmored -stock gunship with it(those holes go all the way through): While designing it I noticed that increasing the bore radius massively reduced the weight of the gun, as it reduced the pressure required to accelerate the projectile and decreased beam deflection stress, at least to a certain point. While I realize I am using UHMWPE and previously boron, I noticed similar effects when using steel, the minimum mass gun that was capable of firing 5kg projectiles at 1.55km/s was 200mm in diameter. I'm fairly certain this shouldn't be happening because this is in line with a modern tank gun and those are usually only 120-125mm. Does anyone know why this is the case?
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Post by deltav on Feb 19, 2017 1:39:14 GMT
Kudos on a great design.
Here are my theories for what it's worth... 1. Real life---Tank guns use complex rounds that are housed in a sabot, that are custom made to absorb the force of the explosion, while protecting the penetrating round, etc for optimum efficiency/ round size. COADE----Unless you design a custom payload, our gun projectiles are just lumps of material that are not optimized for best performance with any moving/complex parts.
2.Real Life---Tank guns are made of composites of complex materials assembled and layer in very complex ways making for maximum power at thinnest/ lightest barrel size. -COADE---- Barrels are just solid tubes for the most part and are made of only one material which are too thick at some parts, while too thin at others forcing a much higher weight/size/diameter than what could be.
Essentially, COADE is as close to reality as any game out (regarding space combat) there as far as I know, and also the only one I've seen that allows you to design and build your own custom weapons and ships. But due to the fact that it has to be able to run on what most people have at home, and not on a supercomputer, many details are simplified to make this work.
Sometimes this results in wonky results that don't match up perfectly with real life tech. But don't be dissuaded. The point is that they are as close as they can be to real space combat with the data/info available to us (and being improved all the time).
Have fun designing and please come back!
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Post by dman1791 on Mar 1, 2017 22:23:52 GMT
Tbh just a barrel taper option would help immensely, so you don't have twenty tons of material holding in a few kPa of gas... Just a linear width change changed by setting muzzle thickness and chamber thickness independently.
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Post by deltav on Mar 2, 2017 5:05:35 GMT
Tbh just a barrel taper option would help immensely, so you don't have twenty tons of material holding in a few kPa of gas... Just a linear width change changed by setting muzzle thickness and chamber thickness independently. Time to add it to the suggestion box my friend.
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