Top 3 ships?

top 3 biggest ships by gross tonnage

Prelude FLNG - It is the largest ship ever built and is used for liquefied natural gas production. The Prelude FLNG is 488 meters (1,601 feet) long and has a gross tonnage of 600,000.

Pioneering Spirit - It is a platform installation, decommissioning, and pipelay vessel owned by Allseas. The Pioneering Spirit is 382 meters (1,253 feet) long and has a gross tonnage of 403,342.

Seawise Giant - The Seawise Giant was an oil tanker that was the largest ship ever built by length, but it was scrapped after sustaining damages during the Iran-Iraq War. It was 458.45 meters (1,503 feet) long and had a gross tonnage of 260,941.
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1. The Prelude FLNG (Floating Liquefied Natural Gas) ship is the world's largest offshore facility, owned and operated by Shell. It is designed to extract, process, and liquefy natural gas at sea, eliminating the need for costly onshore infrastructure. The Prelude FLNG ship is 488 meters long and 74 meters wide, with a displacement of 600,000 tons when fully loaded.

The ship was constructed in South Korea and completed in 2017. It is stationed off the coast of Western Australia, in the Browse Basin, where it processes natural gas from the Prelude and Concerto gas fields. The gas is cooled to -162°C, at which point it condenses into a liquid form, reducing its volume by a factor of 600 and making it easier to transport. The ship has a production capacity of 5.3 million tonnes per annum (mtpa) .

2.Pioneering Spirit is the largest vessel in the world, measuring 382 meters in length and 124 meters in width. It has a displacement of 403,342 tonnes and can lift structures weighing up to 48,000 tonnes. The ship is equipped with a unique lifting system called the "single-lift" that allows it to lift entire oil and gas platforms off their foundations in a single piece.
Pioneering Spirit has been used for a number of high-profile offshore projects, including the removal of the Brent Delta platform in the North Sea and the installation of the TurkStream pipeline in the Black Sea. Its unique capabilities have helped to revolutionize the offshore industry by making it possible to decommission and install large structures more quickly and efficiently than ever before.
3. The Seawise Giant, also known as the Jahre Viking, was a supertanker that was built in 1979 by Sumitomo Heavy Industries in Japan. It was the largest ship in the world at the time, measuring 458 meters (1,503 feet) in length and weighing over 564,000 tons.

The Seawise Giant was originally designed to transport crude oil from the Middle East to the United States and other parts of the world. However, it was damaged during the Iran-Iraq War in 1988 while anchored in the Persian Gulf, and it was subsequently towed to Singapore for repairs.

After its repairs were completed, the ship was renamed the Happy Giant and was used to transport oil for several