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Post by dizzy on Jan 29, 2019 8:08:48 GMT -6
I've not been able to determine this, lol... So I'm asking for help here. Not sure how penetration works in RTW. If the gun does 4 pen, and the armor is 4, what happens?
Thanks!
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Post by boomboomf22 on Jan 29, 2019 8:21:04 GMT -6
So I am buy no means an expert at this game thought I have had a decent amount of time in it so this is my understanding. Penetration numbers are not absolute as the game models glancing hits and non 90° angles of penetration. Thus while a gun with 4" of pen at say 5000 yards has a good chance of penning 4" of armor at that distance.
I think a equaling of values probably means a 50% pen chance on a 90° hit that is entirely a guess. I would advise planning for a immunity zone where your armor overmatched by at least an inch the pen of the guns you are trying to defend against.
I personally try for even more armor leeway than that both to increase the immunity zone and also I come from the kruppschtall school of ship design, but that is entirely up to you.
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Post by williammiller on Jan 29, 2019 10:38:29 GMT -6
IIRC (bear in mind its been a while since RTW 1 development) the following 'rules' apply:
1) If a shell pen equals the armor (after taking into account striking angle and a small random variation) it counts as penetrating...HOWEVER
2) If a shell barely penetrates armor then it does reduced damage, while a shell that has 'more than barely' penetrative ability vs said armor does more (full) damage.
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Post by dizzy on Jan 29, 2019 12:03:36 GMT -6
Thanks guys!
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Post by dorn on Jan 29, 2019 14:54:58 GMT -6
And if penetration is much higher than armor than shell even can go through ship without exploding. It usually happens if superstructure is hit or if heavy guns hit less armored part of ship (extended part of battleships, light cruisers etc.)
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Post by asdfzxc922 on Jan 30, 2019 1:11:28 GMT -6
The gun penetration values appear to follow US/British gun testing standards: 50% chance to penetrate a given thickness at a 30 degree horizontal slope. In my experience each shell's penetration seems to be somewhere between 80% and 120% of the listed average (weighted towards the center), while sloping your ship changes your effective belt thickness by about the same amount (turrets and CTs are assumed to be circular and homogeneously armored). Also, belt armor on pre-AON ships is assumed to be slightly weaker at the periphery and stronger over the engines/magazines, which is why you'll often see engine room hits stop shells even as the rest of the belt is getting shredded.
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Post by Deleted on Jan 30, 2019 19:24:18 GMT -6
The gun penetration values appear to follow US/British gun testing standards: 50% chance to penetrate a given thickness at a 30 degree horizontal slope. In my experience each shell's penetration seems to be somewhere between 80% and 120% of the listed average (weighted towards the center), while sloping your ship changes your effective belt thickness by about the same amount (turrets and CTs are assumed to be circular and homogeneously armored). Also, belt armor on pre-AON ships is assumed to be slightly weaker at the periphery and stronger over the engines/magazines, which is why you'll often see engine room hits stop shells even as the rest of the belt is getting shredded. I think that the turtle back (armored cruisers and pre AoN capital ships) has a "turtle back" bonus to both B and D armor, because if you penetrate the B, or D, you have to penetrate the turtle back armor as well in order to hit the citadel. But this armor scheme also means that your ship is in danger of heavy flooding even by BE and DE hit only.
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Post by dorn on Jan 31, 2019 1:44:52 GMT -6
The gun penetration values appear to follow US/British gun testing standards: 50% chance to penetrate a given thickness at a 30 degree horizontal slope. In my experience each shell's penetration seems to be somewhere between 80% and 120% of the listed average (weighted towards the center), while sloping your ship changes your effective belt thickness by about the same amount (turrets and CTs are assumed to be circular and homogeneously armored). Also, belt armor on pre-AON ships is assumed to be slightly weaker at the periphery and stronger over the engines/magazines, which is why you'll often see engine room hits stop shells even as the rest of the belt is getting shredded. I think that the turtle back (armored cruisers and pre AoN capital ships) has a "turtle back" bonus to both B and D armor, because if you penetrate the B, or D, you have to penetrate the turtle back armor as well in order to hit the citadel. But this armor scheme also means that your ship is in danger of heavy flooding even by BE and DE hit only. If the belt armor is penetrated than it depends on a lot of factors. If the range is very short and shell trajectory is almost horizontal than shell can go over deck armor. In this case propulsion system is not jeopardized as is bellow deck armor. If you hit deck armor and penetrate than belt armor does not help as shell is going directly into vitals. Deck armor is behind belt armor not opposite.
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