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The WWII Gato class US sub carried 24 torpedoes.
WWII USN Gato class subs carried 24 torpedoes.
WWII US Gato class subs could be built in 9 months.
The US Gato class sub could be built in less than 9 months.
The most massed produced US WWII sub was the Gato class, and they were 311 feet long.