Tag Archives: USS Pennsylvania

The Largest Submarine in The U.S. Navy

USS Pennsylvania is a United States 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.

World’s BIGGEST Nuclear-Powered Attack Submarine of U.S. Navy

World’s Largest Nuclear-Powered Attack Submarine of the U.S. Navy.