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Old 08-27-15, 01:02 PM   #3
Rockin Robbins
Navy Seal
 
Join Date: Mar 2007
Location: DeLand, FL
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Quote:
Originally Posted by RoflCopter4 View Post
The Type XXI was supposed to be able to run off it's electric motors for days, and charge them within a few hours with its snorkel.
Better check your figures. Even with 21st century batteries that isn't possible. Charge times are always greater than discharge times even with Lithium Polymer batteries, the best high discharge batteries we have.

And the American Fleet Boat with Guppy III upgrade outperformed the Type XXI U-Boat in all performance areas. The Type XXI was just a reversion to US S-boat technology, optimized for higher underwater speeds and otherwise not too special.
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