TT Seawise Giant—earlier Oppama; later Happy Giant, Jahre Viking, Knock Nevis, and Mont—was a ULCC supertanker that was the longest self-propelled ship in history, built by Sumitomo Heavy Industries in Yokosuka, Kanagawa, Japan. She possessed the greatest deadweight tonnage ever recorded. Fully laden, her displacement was 657,019 tonnes.
The heaviest self-propelled ship of any kind, and with a laden draft of 24.6:m (81:ft), she was incapable of navigating the English Channel, the Suez Canal or the Panama Canal (before it was widened). Overall, she is generally considered the largest self-propelled ship ever built. In 2013 her overall length was surpassed by 30m by the Floating Liquified Natural Gas installation Shell Prelude (FLNG), a monohull barge design 488m long and 600,000 tonnes displacement. Seawise Giant's engines were powered by the Ljungström turbine technology.
She was sunk in 1988 during the Iran–Iraq War, but was later salvaged and restored to service. The vessel was converted to a floating storage and offloading unit (FSO) in 2004, moored off the coast of Qatar in the Persian Gulf at the Al Shaheen Oil Field.
The vessel was sold to Indian ship breakers, and renamed Mont for a final journey in December 2009. After clearing Indian customs, the ship sailed to Alang, Gujarat, where she was beached for scrapping. In 2010, scrapping of the ship was completed.
Seawise Giant was ordered in 1974 and delivered in 1979 by Sumitomo Heavy Industries, Ltd. (S.H.I.) at her Oppama shipyard in Yokosuka, Kanagawa, Japan, as a 418,611-ton Ultra Large Crude Carrier (ULCC). The vessel remained unnamed for a long time, and was identified by her hull number, 1016. During sea... ...read more