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SSCV Thialf is a huge semi-submersible crane vessel operated by the Netherlands-based Heerema Marine Contractors; it was the largest crane vessel in the world until the SSCV Sleipnir became the largest in 2019.
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These semi-submersible crane vessels (SSCV) consist of two lower hulls (pontoons), three columns on each pontoon and an upper hull. Shortly after J. Ray McDermott and Saipem also introduced SSCVs, resulting in two new enormous vessels DB-102 (now Thialf ) and Saipem 7000 , capable of lifting respectively 14,200 and 14,000 tons.
The ship shaped crane vessel Challenger was equipped to lift 800 t. [2] The need for large stable crane vessels to operate in the North Sea environment lead the company to develop the first large semi-submersible crane vessels. In 1978, HMC commissioned Mitsui to construct the two sister semi-submersible crane vessels, DCV Balder and SSCV ...
The Saipem 7000, originally named the Micoperi 7000, was conceived in the mid-1980s by its original owners Micoperi as a multipurpose offshore oil platform installation vessel that would be able to install very large oil production platform decks (known as integrated decks) as well as the decks' supporting structures (known as jackets) using its two very large fully revolving cranes.
The vessel is essentially a large platform supported by eight columns (four on each side), with one pontoon per side. Typical SSCVs use larger columns under the cranes to provide support, which can lead to severe pitching in rough seas; SSCV Sleipnir uses columns that are symmetrical fore and aft for calmer motions under higher sea states.
Lodbrok is a floating crane, in the harbor of Ystad 2020. A crane vessel, crane ship, crane barge, or floating crane is a ship with a crane specialized in lifting heavy loads, typically exceeding 1,500 t (1,476 long tons; 1,653 short tons) for modern ships. The largest crane vessels are used for offshore construction. [1]
The MP4 file format defined some extensions over the ISO Base Media File Format to support MPEG-4 visual/audio codecs and various MPEG-4 Systems features such as object descriptors and scene descriptions. Some of these extensions are also used by other formats based on the ISO base media file format (e.g., 3GP). [1]