Launching the Type 21 on an Unsuspecting World | Nazi Mega Weapons: Hitler's Killer Subs Part 6
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PBS Learning Media
Launching the Type 21 on an Unsuspecting World | Nazi Mega Weapons: Hitler's Killer Subs Part 6
Despite all efforts to produce the Type 21 U-boat quickly, a lack of prototyping led to problems. Only two ever manage to get out on patrol. By the end of the war, not a single torpedo was fired by the Type 21, the world’s first true military submarine.