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Post by n2maniac on Oct 19, 2016 5:59:11 GMT
Does anyone know if this is a synergy that works? I am trying to evaluate tests of a nuclear-powered claymore or flak missile that have inconclusive results. |
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Post by cuddlefish on Oct 19, 2016 6:11:55 GMT
Well, do-it-yourself nuke-pumped EFP weapons (using armor or radiation shields placed before the payload) have been shown to function by forumites here. I don't know if that plays well with discrete fragments, though.
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Post by nivik on Oct 19, 2016 15:12:48 GMT
Does anyone know if this is a synergy that works? I am trying to evaluate tests of a nuclear-powered claymore or flak missile that have inconclusive results. As cuddlefish stated, we have had some good success with nuclear explosively formed projectiles (NEFP), where a radiation shield of a high-melting-point material is placed in front of a nuclear warhead (conventional ones work too). I've had occasional successful penetrations of up to 0.5 meters of RCC with a 90-ton warhead and 500g graphite projectile on a 10.3x170cm missile. I haven't experimented with the idea of nuclear flak; if I were to try it, I'd probably try a bundle of thin, long rod penetrators in front of the nuclear warhead, in the hopes that the detonation would blow them forward in a cone. A tumbling, dense, high-velocity rod could tear a nice, big hole and cause a lot of secondary fragmentation and spalling. It's definitely worth experimenting with, I'd say. |
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Post by cuddlefish on Oct 19, 2016 20:00:45 GMT
I've gotten some encouraging results with multi-rod setups backed with small conventional explosives (stock ships through and through with 10 25g osmium rods in front of 100g TNT), so I suspect that the nuclear version would be terrifying, yes.
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Post by beatle on Oct 20, 2016 11:54:59 GMT
How do you get the EFP thing detonating correctly?
My missiles usually don't detonate at all if they hit their target directly - they just turn to KE perpetrators. Or, if they miss, they detonate when they just pass the target and the front of the warhead is already pointing away from it at that point.
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Post by Durandal on Oct 20, 2016 13:15:55 GMT
How do you get the EFP thing detonating correctly? My missiles usually don't detonate at all if they hit their target directly - they just turn to KE perpetrators. Or, if they miss, they detonate when they just pass the target and the front of the warhead is already pointing away from it at that point. That's a known problem with missile tracking. Usually 1 in 20 of my NEFP gets a hard kill, and it's usually at something close to a 45 degree or perpandicular angle. Most kills seem to just be from detonating a nuke inside the engine cone of the ship with no hits from the NEFP effect. I've tried different setups. Flat disks of osmium, multiple "pills" layer in the same stack level. Pill-disk combo. The best and most consistant results have been with a single 20x20 osmium rad shield pill. I use it with a 1.54Mt warhead with good results, and I believe I've got a 3kt design as well. I'll have to try the multiple long-rod idea tonight. Also, I had a really good view of a gunship that I swiss-cheesed last night that I should have taken a screenshot of. It had 5-6 solid hits along the flanks by the radiators. Clean solid holes punched out on one side; glowing radioactive crater on the other. It's one thing to show penetrating on an armor test hulk but another I think to show a dead gunship. |
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Post by beatle on Oct 20, 2016 13:52:55 GMT
That's a known problem with missile tracking. Usually 1 in 20 of my NEFP gets a hard kill, and it's usually at something close to a 45 degree or perpandicular angle. Most kills seem to just be from detonating a nuke inside the engine cone of the ship with no hits from the NEFP effect. I've tried different setups. Flat disks of osmium, multiple "pills" layer in the same stack level. Pill-disk combo. The best and most consistant results have been with a single 20x20 osmium rad shield pill. I use it with a 1.54Mt warhead with good results, and I believe I've got a 3kt design as well. I'll have to try the multiple long-rod idea tonight. Also, I had a really good view of a gunship that I swiss-cheesed last night that I should have taken a screenshot of. It had 5-6 solid hits along the flanks by the radiators. Clean solid holes punched out on one side; glowing radioactive crater on the other. It's one thing to show penetrating on an armor test hulk but another I think to show a dead gunship. I would love to see a screenshot like that! It is good to know that others see some variability in this as well, as I had noticed that maybe one in 50 or so of my tiny nukes would totally obliterate a armor test 'dish' while all others would just leave a tidy nuke shaped hole. I am not quite sure of the mechanism tho, as my missiles don't really have any mass to act as EFP, so maybe they just managed to explode inside the target. I wonder if building few large missiles with huge nukes and some form of EFP material in front and detonating them manually just before impact would be worth it? One shot - guaranteed kill would offset the need to manually micromanage every single launch. |
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Post by docfizzix on Nov 6, 2016 22:34:33 GMT
I've built nuclear-boosted fragmentation rounds before, and they are *frighteningly* effective. The nuke seems to superheat the shrapnel into plasma that can be seen from tens of kilometers away as a massive superhot cloud of expanding brimstone, and takes like 5 seconds to cool off. Since I use tiny 44.4t nukes, it takes more than one hit to kill any ship (save a lucky radiator hit) but it's a lot more fun to fire than conventional or EFP nukes since you get the lightshow and kinetic damage of the fragments as well as flash of the nuke. Now to see about combining them with NEFP...
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Post by Durandal on Nov 6, 2016 22:55:16 GMT
I've built nuclear-boosted fragmentation rounds before, and they are *frighteningly* effective. The nuke seems to superheat the shrapnel into plasma that can be seen from tens of kilometers away as a massive superhot cloud of expanding brimstone, and takes like 5 seconds to cool off. Since I use tiny 44.4t nukes, it takes more than one hit to kill any ship (save a lucky radiator hit) but it's a lot more fun to fire than conventional or EFP nukes since you get the lightshow and kinetic damage of the fragments as well as flash of the nuke. Now to see about combining them with NEFP... Got a design to post? |
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Post by n2maniac on Nov 8, 2016 8:17:20 GMT
I've built nuclear-boosted fragmentation rounds before, and they are *frighteningly* effective. The nuke seems to superheat the shrapnel into plasma that can be seen from tens of kilometers away as a massive superhot cloud of expanding brimstone, and takes like 5 seconds to cool off. Since I use tiny 44.4t nukes, it takes more than one hit to kill any ship (save a lucky radiator hit) but it's a lot more fun to fire than conventional or EFP nukes since you get the lightshow and kinetic damage of the fragments as well as flash of the nuke. Now to see about combining them with NEFP... You have my intense interests. What was your design? |
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Post by dragonkid11 on Nov 8, 2016 8:37:00 GMT
I have been wanting to make nuclear fragmentation rounds but have no idea on how.
If you managed to figure out how to make nuclear fragmentation rounds, then that would be great to show us your design.
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Post by docfizzix on Nov 10, 2016 22:46:29 GMT
imgur.com/a/xpiJC for the overall design. Shrapnel is just a bit of carbon steel. I think the low-yield (less than a kiloton) is critical for this design.
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Post by Durandal on Nov 11, 2016 1:14:53 GMT
imgur.com/a/xpiJC for the overall design. Shrapnel is just a bit of carbon steel. I think the low-yield (less than a kiloton) is critical for this design. Haven't tried copying and testing myself yet, but is the nuke detonating properly with that setup? Unless you've done some finagaling woth detonator settings I would think the flak would go off first as it closes in on the target therby destroying the nuke. |
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