Major crane refit for Offshore Wind Jack-Up 'Brave Tern'
With a new generation of large wind turbines coming into operation, and with even larger versions just a few years away, operators of installation vessels are looking to refits and upgrades to extend the life of their current assets. It was for this reason that the Brave Tern, a 132-metre jack-up owned and operated by Fred. Olsen Windcarrier AS, came to Damen Shiprepair Amsterdam in 2018.
Over the course of 30 days a new 20-metre section was inserted into the main boom of the vessel’s 800-tonne crane, with the objective of allowing it to reach a new height of 120 metres. The extension process required the unreeving of all the crane wires before the crane boom could be dropped down to rest on a support structure built from containers.
The boom was then separated into two pieces and the new section inserted and secured using flanges. Following the completion of the new boom the wires were re-reeved and a series of load tests conducted before the crane was certified ready for operations.
Short notice not a problem
Damen Shiprepair Amsterdam (DSAm) won the order with some very competitive pricing, and the vessel arrived at the yard the following day in anticipation of a rapid turnaround. DSAm had the necessary capacity available and over the next few days (a weekend) the project office was set up, the boom rest structure constructed, and the mobile cranes positioned, all ready for a start at the beginning of the following week. Thirty days later she was heading back out into the North Sea, ready to start her next contract. In all, an excellent demonstration of DSAm’s ability to both initiate and implement projects at exceptionally short notice.
After the project was completed, Ove Rylandsholm from Fred. Olsen Windcarrier AS, commented: “We were very impressed with the service and support provided by managers and staff at Damen Shiprepair Amsterdam. They had very little notice ahead of the vessel’s arrival, but they demonstrated a high degree of professionalism and their solution-oriented approach to the various tasks was just what we needed. It has been a pleasure to work with them.”
DAMEN SHIPREPAIR AMSTERDAM
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