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Old 05-21-09, 10:14 AM   #10
Bent Periscope
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Join Date: Mar 2009
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Per this site, http://www.uboat.net/technical/schnorchel.htm, it looks like the snorkel was not available for operational u-boots until early 1944.

This of course does not explain why the renown value changes. I wonder if this is to show when the prototype was available? Still, I don't know how that works into the equation and at what point are we able to use a prototype + its reliability.

BP
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