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Seawise Giant, the LARGEST oil tanker in the world with almost half a kilometer long and weighing 650 thousand tons, surpassing Changsha IFS Tower T1 โ€“ the tallest building in China!

Written by Valdemar Medeiros
Published 22/03/2024 ร s 12:30
Seawise Giant, the LARGEST oil tanker in the world measuring 458,45 meters, 650 thousand tons
Photo: Reproduction/Endless Sea
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Discover the largest oil tanker in the world, almost half a kilometer long. The Seawise Giant had a deadweight tonnage of more than 650 thousand tons.

Some of the world's largest ships appear, mainly in the form of oil tankers, cargo ships and cruise ships. These mega machines are engineering colossi, contributing to a large share of passenger transport. In this article we will know the largest oil tanker in the world, called the Seawise Giant.

First of all, the Seawise Giant was also named after Happy Giant and Knock Nevis. This is the world's largest oil tanker ever built, at 458,45 meters, or almost half a kilometer long, greater than the height of many of the world's tallest buildings.

The Seawise Giant, The world's largest ship, later called the Happy Giant, was an Ultra Large Crude Carrier (ULCC) supertanker. considered the longest self-propelled ship in history. Its construction took place between 1974 and 1979 by Sumitomo Heavy Industries in Yokosuka, Kanagawa, Japan.

Construction of the largest ship in the world took place in 1979

This ship boasted the largest deadweight tonnage ever recorded, with a displacement of 657.019 tons when fully loaded. The anchors of the world's largest oil tanker were equally impressive, weighing 36 tons each.

The ship had a draft of 29,8 meters, an impressive width of 68,8 meters and could reach a speed of 16 knots. The vessel had an impressive deck area of โ€‹โ€‹31.541 square meters, 46 tanks and a mission to connect the Middle East to the United States. For 7 years, she managed to carry out this task without major setbacks. However, in 1988, a war crossed her path.

Largest Ship in the World went through long arbitration process

At first, the ship remained without an official name, being identified only by its hull number, 1016. However, during sea trials, the largest ship in the world presented serious vibration problems when sailing in reverse. The Greek owner refused to accept it, and the vessel was subjected to a long arbitration process. Finally, the shipyard exercised its right to sell it.

To this end, an agreement was negotiated with the founder of Hong Kong Orient Overseas Container Line to lengthen the hull by several meters and add 146.152 tons of load capacity through jumboborization, a system that makes it possible to increase load capacity by making a vertical cross-section in its hull and the intersection of a new set of holds, which they are later fused to the original hull. 

Originally, the world's largest oil tanker was commissioned in 1974 by a Greek tycoon. However, the owner was unable to pay in 1979. The ship, unnamed and identified only by hull number, was subject to a long arbitration process.

World's largest ship sank in Iran

The name Seawise Giant was chosen by Tung. Finally, it was launched into the sea in 1981 with a carrying capacity of 564.763 tons of dead weight. Its origins date back to the 1970s, a time when the closure of Suez Canal encouraged shipping companies to invest in XXL-sized ships that could travel around the Cape of Good Hope.

In 1988, a war crossed the bow of the largest oil tanker in the world, the conflict between Iran and Iraq. Due to its warehouses full of Iranian crude oil, it has become a perfect target for the Iraqi Air Force. As a result, the world's largest ship sank off the coast of Larak Island, Iran. The refloating and repair operation was completed in 1989, and the ship left Singapore with a new name: Happy Giant.

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Valdemar Medeiros

Journalist in training, specialist in creating content with a focus on SEO actions. Writes about the Automotive Industry, Renewable Energy and Science and Technology

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