Dimensions – Weight 385 TONS & 407 TONS THE CHALLENGE – To ‑nd a custom solution to top and tail the complete fabricated structure and align it with the base jacket structure. OUR SOLUTION – A selection of 3 cranes were used. Our Liebherr 600 TON crawler crane with 84.0M boom SDBW was used as the main crane, a 400 TON crawler crane with 64.0M boom and our Liebherr 1200 TON mobile crane were used as tailing cranes to successfully top and tail the entire structure and then carefully position it over the base structure for welding.