Northeast Gateway Project

Innovative installation method for STL buoys proves succesfull

Jumbo in cooperation with APL of Norway has succesfully completed the installation of two Submerged Turret Loading (STL) buoys for a new gas offloading facility offshore Boston.

In July 2007 the DP-2 heavy lift vessel Jumbo Javelin installed 16 suction anchors, all of extraordinary size, and laid out more than 7.5 km and 3000t of 5¼ inch chains as part of the mooring system of the two STL buoys. After the two mooring systems were installed, Jumbo placed the two 156t STL-buoys in the water for final connection to the chains.

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