Quote:
Originally Posted by o3742180
in this forum, i read that the type 2 were withdrawn mid 1940 for purposes of school and training; later, a few were used in the Black Sea.
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Yes. But they were replaced by small single person mini-Subs.
The Boat was not designed to fit a Snorkel. And the boat's flaws and early design would have made a refit impractical. Especially because the mini-Subs that replaced them ran solely on batteries.
On top of that was the reason the Snorkel was used, so large U Boats didn't need to surface to recharge their batteries. The type 2 was small enough that it didn't need to worry about this and it was deployed in areas where ally air was slimmer. Therefore reducing the need to stay underwater.