Jack-up

With the newly developed ULSTEIN X-JACK heavy lift jack-up designs Ulstein presents its answer to the offshore wind industry’s need for fit-for-purpose, cost efficient yet future proof wind turbine installation vessels.

The design driver is to significantly increase the efficiency compared to existing units in the market, both in logistical lay-out as in pay load capacity, while being lighter at the same time. The combination of an innovative hull shape and vessel layout with well proven jacking and crane technologies from reputable suppliers provides unrivalled heavy lift and cargo capabilities.


The ULSTEIN X-JACK-series is scalable and include three versions:

    • J101, tailored for maintenance and exchange of wind turbines/nacelles;
    • J102, sized for most optimal and cost effective installation of four (4) next generation wind turbines;
    • J103, designed to carry and install six next generation wind turbines to realize even the world’s most remote wind farm locations.

Vessel designs

Name Length Beam Dead weight Draught (max) Speed (max) Accommodation Deck area
J101 80 m 50 m - - - kn - POB 1,600 sqm
J102 145 m 88.4 m - - 11 kn 120 POB 6,500 sqm
J103 164 m 104 m - - 11 kn 130 POB 9,000 sqm