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Vessel extraordinaire

PES takes a look at the world’s largest turbine installation jack-up vessel: the GustoMSC designed Seajacks Scylla, to see what it’s capable of..

GustoMSC and Seajacks have a close working relationship – together they developed the largest wind-turbine installation jack-up vessel in the world: Seajacks Scylla. A partnership which is crucial to equity capital partners for whom the track record of a vessel designer is vital to raising equity capital. GustoMSC is the most trustworthy and tested company.

The Scylla has already started work. In April 2016 she began the installation of 67 monopile foundations on the 402 MW Veja Mate offshore wind farm in the German sector of the North Sea. These are the largest foundations in the world, with one foundation alone weighing a total of 1,302.5 tons, a 7.8 metre diameter and a length of 82.2 metres.

The Scylla will carry 3 foundations per trip. She has 4,600 square meters of deck area, and a variable load of 8,500 tons. She is equipped with a Huisman 1,500-tonne leg-encircling crane. The well-balanced DP2 ensures manoeuvring capability, enabling swift positioning and relocation. The GustoMSC made Rack & Pinion Jacking System is controlled by electrical variable speed drives (VSD). This means controlled jacking at any time, with low wear and tear, making it possible to control the jacking speed and loads on each individual leg accurately during the entire jacking process, including preloading. This is essential for fast and safe installation of the jack-up at each location.


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