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Old 12-30-10, 04:20 PM   #1
Arnold
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I've seen photos of ice-covered u-boats. Having heavy ice on the tower must have given the L1 fits when he attempted to balance the boat for dives.
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Old 12-31-10, 08:03 AM   #2
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I've seen photos of ice-covered u-boats. Having heavy ice on the tower must have given the L1 fits when he attempted to balance the boat for dives.
There are a couple of skins that are specifically tailored to the arctic patrols. Of the two I can remember off hand one changes the hull largely to a white color to simulate ice, the other one shows ice on the decik itself and between objects on the boat. Fubar made one of the less weathered skins relative to the other. The other skin is hardcore, it nearly ices the whole boat up to replicate what it was like to do arctic patrols and the effect it had on ships.
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Old 12-31-10, 06:14 PM   #3
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There are a couple of skins that are specifically tailored to the arctic patrols. Of the two I can remember off hand one changes the hull largely to a white color to simulate ice, the other one shows ice on the decik itself and between objects on the boat. Fubar made one of the less weathered skins relative to the other. The other skin is hardcore, it nearly ices the whole boat up to replicate what it was like to do arctic patrols and the effect it had on ships.
Privateer is correct...the mod was never released but it may be possible using the 'date' function in Commander to make it 'seasonal'.

One of the 'iced-up' skins I use is the one by Shaffer 4 a beautifill Type VII skin....I can upload if anyone would like it.
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Old 12-31-10, 07:34 PM   #4
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Originally Posted by jimbuna View Post
Privateer is correct...the mod was never released but it may be possible using the 'date' function in Commander to make it 'seasonal'.

One of the 'iced-up' skins I use is the one by Shaffer 4 a beautifill Type VII skin....I can upload if anyone would like it.
Would love to get a hold of that skin for the winter patrols. Could you post it up so I could grab it from ya.
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Old 12-31-10, 09:23 PM   #5
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There's also a Standalone Weather mod that might with, a little work, do this.
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Old 01-01-11, 11:25 AM   #6
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Would love to get a hold of that skin for the winter patrols. Could you post it up so I could grab it from ya.
Here you go:

http://www.filefront.com/17734885/Sh..._Type_VII.rar/
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Old 01-02-11, 07:20 PM   #7
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Thanks a million. Fubar's winter skin is nice but too subtle. This one had always been a favorite to use while operating in the arctic/high North Atlantic.
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Old 01-02-11, 07:25 PM   #8
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You guys might want to look at post #14.
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Old 12-31-10, 11:31 PM   #9
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I've seen photos of ice-covered u-boats. Having heavy ice on the tower must have given the L1 fits when he attempted to balance the boat for dives.
I doubt this would be too great an issue since ice is lighter than water and would melt fairly quickly once submerged. Once under water one would think the ice would act as positive bouyancy until the boat could shed it but as top hamper it would probably aid quicker dives and only greater speed would be necessary to drive the boat down dynamically with additional tanks flooded to compensate.

This would be exactly the opposite of ice building up on surface ships particularly those with high metacentric heights or those with limited reserve bouyancy.

I suspect that the biggest problems associated with ice accumulation would be having to deal with crew safety, frozen valves, forward torpedo doors in addition to iced-over snorkels, sensors and guns. It's unlikely that ice accumulation topside presented a significant safety hazard to the boat in most cases. Ugly and inconveniant probably but unlikely to be really dangerous.
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Old 01-01-11, 12:29 AM   #10
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Aside from slipping on it, and then over the side, the ice unbalances the boat. As you said, the submerged parts wouldn't ice up so bad, but the Turm may ice over bad enough to raise the center of gravity high enough to roll the boat. Even modern ships have this problem.

Just read somewhere (Either in Blair or the 564 book i linked in the campaign thread) that the biggest problem (along with mentioned above) was the diesel exhaust valves not sealing on dives, causing severe flooding and damage to the engines.
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Old 01-01-11, 10:29 PM   #11
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... the Turm may ice over bad enough to raise the center of gravity high enough to roll the boat. Even modern ships have this problem.
^
Agreed. I've watched the program "Deadlest Catch" on t.v. which is about men fishing in the Bearing Sea. A captain spoke about the danger of rolling the top-heavy boat, laden with crab pots, if too much ice accumulated on the boat. Doesn't a u-boat have a low center-of-gravity to prevent this sort of thing?
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Old 01-01-11, 10:31 PM   #12
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Quote:
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^
Agreed. I've watched the program "Deadlest Catch" on t.v. which is about men fishing in the Bearing Sea. A captain spoke about the danger of rolling the top-heavy boat, laden with crab pots, if too much ice accumulated on the boat. Doesn't a u-boat have a low center-of-gravity to prevent this sort of thing?
They do, but enough ice will shift it upwards.
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Old 01-02-11, 04:34 PM   #13
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Submarines have a low reserve of buoyancy anyway, compared to surface ships. The biggest danger is at diving when, because of neutral buoyancy, they can be easily rolled over, and ice on the superstructure could increase this risk.The higher up the weight the greater the rolling moment and if the downward force exerted by the roll moves outside the righting moment pushing up, ie, outside the hull, the hull will capsize.Similar to the leaning tower of Pisa which will fall if and when the downward force moves outside the base.I believe they used to dive frequently in order to remove ice build up.
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