Ulstein Group has launched a new design feature that can increase vessel operability through positive effects on station keeping, wave response, comfort and safety in adverse weathers.
X-STERN has a sloping and higher stern, allowing for a sharp stern shape in which the transom plate is replaced by a pointed aft, and is primarily designed for vessels that are dependent on the best possible motion characteristics.
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Possessing similar capabilities as the company’s X-BOW, X-STERN reduces acceleration, pitch and wave drift forces, and eliminates slamming, while offering the possibility of operation in a wider sector with same power consumption.
Ulstein deputy CEO and markets and innovations head Tore Ulstein said: “An innovation process is a long process, in which we work strategically in order to come up with safer, smarter and greener solutions.
“We discuss operational challenges with our customers, and work on how to transfer these challenges into technical solutions, which can be turned into commercial products.
“The X-STERN is patent-pending in several countries, including the USA and in the EU.”
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By GlobalDataWith X-STERN, work deck aft is enclosed, with no sea on deck or ice build-up in cold climates.
Additional advantages include increased safety for crew, cargo and equipment, as well as a significant reduction in aborted operations.
Launched in 2005, X-BOW is a design feature that increases crew comfort while offering the users an opportunity to keep up speed in poor weather conditions or the option of reduced fuel consumption.
To date, around 100 X-BOW vessels have been delivered to customers worldwide or are under constructed.
Image: An offshore vessel with the X-STERN has increased operability in harsh conditions. Photo: courtesy of Fire Grader.
