USS Pennsylvania explained

USS Pennsylvania may refer to:

• was a 130-gun ship of the line launched in 1837 and burned to prevent capture in 1861
• A screw steamer, laid down as Keywaden in 1863 but never launched, was renamed Pennsylvania while she lay in the ways before being broken up in 1884
• was the lead ship of the launched in 1903; renamed Pittsburgh in 1912; scrapped in 1931
• was the lead ship of the launched in 1915 and sunk in 1948, after atomic bomb testing in 1946
• is an launched in 1988 and currently in service