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Wednesday, October 30, 2019 

Ulstein reports that its customers are delighted with the seakeeping performance of its first cruise ship with the X-Bow, which experienced no slamming in head seas on a challenging delivery voyage.

The polar cruise vessel Greg Mortimer is about to set off for her first Antarctica expedition, crossing the notorious Drake Passage. The seakeeping performance was proven on the vessel’s transit from the CMHI yard in China to Argentina, when she entered 10m high waves and very strong winds. The ship came across very bad weather after leaving Cape Town heading for Ushuaia, Argentina. According to the Captain, the waves were 8-10m, with some waves reaching above deck 5, and strong winds. The vessel still kept a speed of 12-13 knots, with only 1 knot speed loss.

The characteristic X-Bow design improves on-board comfort in head seas, as it helps to reduce slamming and resulting vibrations. The vessel can thus keep up speed in adverse weather to get quickly through the harshest stretches of waters, such as the Drake Passage. It has proved successful on over 100 offshore ships, and this is the first cruise vessel to incorporate the feature.

“It’s a totally different experience In big seas, I kept waiting for the slamming, but it never came. You don’t feel the sea, you have to relearn how to interpret the vessel behaviour. Other ships can only keep half the speed,” said the experienced Captain Ulf-Peter Lindstrøm.

“Being an offshore specialist means that the vessels we design must be robust and handle very tough weather in some of the world’s harshest ocean areas. When Ulstein turned to the cruise industry, the cruise ship owners immediately saw the potential. The Greg Mortimer is the first cruise vessel with the X-BO® feature, but there are now several others under construction in China and Norway,” said Tore Ulstein, deputy CEO and COO Design & Solutions, Ulstein Group.

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