The SS United States (also known as The Big U) is an ocean liner built in 1952 for the United States Lines. At 53,329 gross tons, she is the largest ocean liner to date built entirely in the United States and still holds the record for the fastest westbound transatlantic crossing. In 1952, on her maiden voyage as the new flagship of the United States Lines, the United States captured the Blue Riband with the fastest eastbound and westbound transatlantic crossings on record (11 July?15 July, 3 days, 12 hours, 12 minutes).
The entry of the United States marked the first time since the Baltic a century earlier that a U.S.-flagged ship held the Blue Riband, surpassing European speed records which had stood for decades. The United States lost the eastbound record in 1990, but still holds the westbound record, and remains the fastest ocean liner to cross in either direction. The United States plied the transatlantic with passenger service until 1969, and she outlasted the demise of her original owners. The ship is currently docked in Philadelphia until a decision is made about her fate.