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Old 12-10-09, 04:19 PM   #1
Ducimus
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Originally Posted by Hitman View Post
I can offer another good reason for the yo-yo: If you are detected by an aircraft, and even if you evade him, staying below at slow speed is the best way of not being too far from where you were spotted when the nasty airdale tells his tin-can friends what he saw and where
That is one of the "beauty's" about Aircraft seeing shallow submerged targets.


I was just thinking, it's a shame we can't get the negative boyancy mod from NYGM in SH3 to work in SH4. One thing that has never been modeled in SH3 or SH4 was the need to use propulsion while submerged in order to maintain depth. The reality is, once your batteries run low, you MUST surface. If this was in game, youd see people running submerged a lot less. (I'd also lay odds that this sort of improvement you wont see in SH5 either)
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Old 12-10-09, 08:01 PM   #2
Apocal
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Originally Posted by Ducimus View Post
I was just thinking, it's a shame we can't get the negative boyancy mod from NYGM in SH3 to work in SH4. One thing that has never been modeled in SH3 or SH4 was the need to use propulsion while submerged in order to maintain depth. The reality is, once your batteries run low, you MUST surface. If this was in game, youd see people running submerged a lot less. (I'd also lay odds that this sort of improvement you wont see in SH5 either)
They didn't know how to trim back in WW2?
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Old 12-11-09, 03:47 AM   #3
Rockin Robbins
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They didn't know how to trim back in WW2?
Under normal circumstances, as the specific gravity of water changes with salinity and temperature, buoyancy conditions are in a constant state of change. Therefore there is no stable trim configuration. You are continually pumping water in and out of ballast tanks to maintain neutral buoyancy. Then people moving around in the boat make fore and aft trim changes necessary to keep the boat level. If the hull leaks at all (they all do) this also contributes to the out of balance situation. These necessary trim adjustments take electricity. So the short answer to your question is no, they didn't and we still don't know how to trim.

The long answer contains a notable exception to the rule and that is "floating on the layer." It was very possible to trim the sub so that it sank in the less dense and warmer water on top and floated on the colder and denser water below. There had to be enough difference so that the trim was stable over time, but on occasion a WWII sub was able to float on the layer for a whole day without running a pump or using any battery at all.

And they all lived happily ever after...
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