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Last week Red Rock successfully tested the third auxiliary crane for Jan De Nul’s next generation offshore installation vessel Les Alizés. The FAT was done with representatives both from Jan De Nul and Bureau Veritas.

The crane will be disassembled from the test stand and prepared for transport. The next steps are installation and commissioning onboard the Les Alizés.

The crane is custom designed for this vessel with a short main jib and telescopic function on the knuckle jib. In parked position the footprint of the crane is minimal and there will be more available deck space onboard for mission equipment for offshore wind.
The crane SWL is 40T and the maximum reach is 30 meters. Crane is equipped with Personnel Lift, Constant Tension and Active Heave Compensation. The crane is fully radio controlled with Red Rock HMI tablet.


Together with the Jan De Nul’s Voltaire, this new vessel will be in a super-size class of its own, capable of building the newest generation of offshore wind farms. Les Alizés, which is currently doing work for Ørsted’s Gode Wind 3 and Borkum Riffgrund 3 wind farms in Germany, is equipped with highly advanced cranes from Red Rock to support the operation of the vessel.


For further information please contact the Red Rock Sales Team.