The Largest Submarine in The U.S. Navy

USS Pennsylvania is a United States Navy Ohio-class ballistic missile submarine which has been in commission since 1989. The Ohio class is a class of nuclear powered submarines used by the United States Navy. The Navy has 18 Ohio-class ballistic missile submarines and guided missile submarines.

Largest Submarines
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Kursk Submarine Disaster
http://engineers-channel.blogspot.com/p/kursk-submarine-disaster.html

The Largest Submarine in World War II
http://engineers-channel.blogspot.com/p/the-largest-submarine-in-world-war-ii.html

USS Nautilus Submarine
https://engineers-channel.blogspot.com/p/uss-nautilus.html

Torpedoes History
https://engineers-channel.blogspot.com/p/torpedoes-history.html