I'm not sure why this works, but the technique I use seems effective.
There are only two times I use the schnorchel: 1) to refresh the air (which is quick), and, 2) to recharge the batteries (definetely not quick!). And in both cases I do not move at all. I carefully trim until any wave action ocassionally closes off the schnorchel valve and then I just wait.
So far I've never been attacked doing it this way.
I have a quick question, however: I have map contacts off. Does having the beobachtungsperiskops raised actually permit my AI personell to detect aircraft?
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