Here are a few "authentic sketches [that] show the nerve center of a captured Nazi sub." accompanied by a few informative paragraphs about the beast:"
"Every inch of a U-boats space, every one of its 45 men, is utilized to the maximum. Each serves the sub's principal weapon, the torpedoes which speed toward an objective at 45 knots. New models have one or two guns of 3.5-inch caliber or more which are effective against unarmored ships at ranges up to five miles."
Click here to read about a Soviet submarine called the S-13...
Click here to read more articles about W.W. II submarines.
Click here to read about the rise of naval aviation.