Flexible Lay System to Indonesia
Successful heavy-lift transportation over 8,400 nm in 40 days
Bertling was asked to handle the transportation of a complete lay system weighing over 2,000Te from the UK to a shipyard in Indonesia. The client had originally planned to equip a new lay vessel at the port where the flexible lay system was being constructed. The entire shipment comprised 16,774 cubic meters with the heaviest piece weighing 478Te.
Tailing the tower
As the 478 tonne tower had only two lifting points and base tailing frames, Bertling had to come up with an innovative scheme to tail the tower to vertical using one ship's crane and SPMT’s.
Jacking it up
The first task was to jack the tower up high enough to allow delivery alongside the heavy lift ship at a height that would allow SPMT’s to tail the tower base during lifting.
Delivery at the quay
After being delivered alongside the quay, the ships 700-tonne crane and tackle were rigged to the head of the tower. The base was landed to stillages and the SPMT’s re-positioned under the tailing frames.
Once the ship's crane had lifted the head of the tower sufficiently, the SPMT’s at that end were driven out sideways to allow the base end SPMT’s to commence the tailing operation.
As the ships crane continued to lift, the SPMT’s travelled slowly towards the vessel until the tower was rotated to vertical at a height that would allow it to pass safely over the coaming of the hold.
Positioning on board of the vessel
After the base frames had been landed in the hold and secured, the tower was rotated to horizontal on the hook of the crane.
Loading of the crane & equipment
The 330-tonne knuckle boom crane was then delivered alongside for loading onto the weatherdeck. Both the crane and other equipment was loaded safely aboard.
Fastening for the voyage
A view of the tower in the lower hold with lashing and securing completed.
The journey can begin
All weatherdeck cargo loaded and secured and ready for departure.