elukka
Junior Member
Posts: 73 
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Post by elukka on Apr 12, 2017 6:53:06 GMT
Not necessarily, they could use whatever. In the Orion pulse units, for example, the channel filler which directed the radiation to heat the propellant was beryllium, but the propellant itself (i.e. the pancake that forms the penetrator in NEFPs) was tungsten.
In reality there are two things that contribute to a more collimated, higher speed plasma cone:
- A thinner pancake. The rule of thumb is that something in the shape of a cigar expands into the shape of a pancake, and something in the shape of a pancake expands into the shape of a cigar. This is called the flip-over effect. We want a cigar-shaped plasma, so we want to start with a thin pancake.
- Lower atomic number. Use a lighter element for a higher plasma velocity.
NEFPs work so inconsistently in the game that I don't really have any clue what effects these factors have, if any.
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Post by dwwolf on Apr 12, 2017 7:46:16 GMT
Now that I think about it...it could be related to pancake frag payloads throwing most of the flak forwards and backwards. But still strange because the payload usually has minimal explosive content. Actually this is realistic behavior, at least in regards to Casaba-Howitzer. There is a quote somewhere on Atomic Rockets about it. A pancake expands into a cigar and a cigar expands into a panckake. The bug was described as teleporting the payload into the target. If that is true the NEFP effect is irrelevant. Putting the standard 10kg explosive rods infront of the 10 Mt nuke results in a few holes along the nuke to target vector. Its very weird behaviour. Because some of explosives go of at the nukes original location ( frags are drawn there ). |
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Post by Esterov on Apr 12, 2017 18:23:41 GMT
Pretty sure that it's just teleporting the payload into the target, here's with as quick of a pause as I could post detonation:
EDIT: Actually, since there are two explosions, might just be the internal ammo bay kicking the bucket? Going to test this some more after work. EDIT2: What the $#%&. I have no idea. Here's a wrecked ship that had 70m of armor, incl. diamond, depleted uranium, fiber and osmium. Note how the reactor is intact.  EDIT3: Not to be outdone by the beautiful silver bullet in the first post, here's something that uses a 500µm layer of the new Neptunium-237  |
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Post by lawson on Apr 15, 2017 15:02:54 GMT
Fyi, I think this might be a flak bug. Needle-guns with 1-2 flak segments hit WAY too often when they randomly detonate in front of a target. I suspect that some fraction of the segments auto-target.
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Post by skitsykitsy on Apr 16, 2017 18:48:43 GMT
I have to admit I'm totally flummoxed here.
I tried to make something similar to this, but as with a lot of other people here I tended to either vaporize the flak or just watch a cloud of pretty glowing bits gently cruise to the target and bathe it gently. I'm completely lost as to what's making this thing work, especially with such fine flak. My first attempt used my 9.83MT nuke with a boron reflector. I detonated at 5km - nowhere near the max range.
I tried with flak of various sizes and shapes, from big blobs of osmium (which do nice damage in close-in NEFP explosions) which didn't achieve much to fine clouds that either vanished before hitting the target or did nothing when they did. Nothing stayed as tight as the flak from the video and definitely didn't move as fast.
I switched to using Osmium reflector in the nuke and boosted it to 10.9MT. Still nothing, the flak disperses and moves at a snails pace to wash over the stock Gunship for no real damage. Switched to the ultra-fine flak in the design above, it flashed and vaporized instantly. Far more damage from the nuclear blast than flak. (That's a meaty nuke...)
Going to try to actually use your design now though, clearly I'm just not getting it! :s
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Post by skitsykitsy on Apr 16, 2017 18:52:50 GMT
Oh, nevermind, I just realized it's a bug. Doh.
I still love my NEFPy stuff, but I guess a mega-meter instant-kill nuclear lance was a bit much to ask for.
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Post by dwwolf on Apr 17, 2017 9:33:48 GMT
We could test a single missile with normal explosive booster plus a frag explosive.
If they still impact at 1Mm instantly we know its a bug.
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Post by Esterov on Apr 17, 2017 12:09:44 GMT
We could test a single missile with normal explosive booster plus a frag explosive. If they still impact at 1Mm instantly we know its a bug. I switched out the nuke for a shrapnelless 1kg block of TNT. Not 1Mm, but same behaviour as with the 100t yield nuke. (The front is not damaged, the ship is split in two from the middle)  Edit: The tests I've done | Booster | Frag | Fragment teleportation? | Gunskiff armor damaged | Gunskiff split in two? | | 10Mt Nuke | 146x (4x2.5kg) Osmium | Yes | Yes | Yes | | 100t Nuke | 20x (4x25g) Graphite | Yes | Yes | Yes | | 1kg TNT | 20x (4x25g) Graphite | Yes | Yes | Yes | | 1kg TNT | 1x (4x25g) Graphite | No | No | No | | - | 20x (4x25g) Graphite | Yes | No | No | | - | 20x (4x25g) Graphite | Yes | No | No | | - | 2x (4x25g) Graphite | No | No | No | | - | 3x (4x25g) Graphite | Yes | No | No | | 1kg TNT | 2x (4x25g) Graphite | Yes | Yes | No |
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Post by dwwolf on Apr 18, 2017 8:17:32 GMT
Damb...well that settles it
...its a bug.
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Post by coaxjack on Apr 18, 2017 21:44:37 GMT
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