Allseas is a global leader in offshore pipeline installation, heavy lift and subsea construction. We are experts in the execution of large and complex projects, providing worldwide support to clients from the conceptual design stage to engineering, procurement, fabrication, installation and commissioning of offshore structures.. Home Cases Allseas Solitaire Unique operator cabin for Solitaire offshore pipelay vessel On behalf of ELMA, Merford has produced a custom-made cabin for the Solitaire owned by Allseas, one of the largest pipelaying vessels in the world.. Allseas’ launched its first vessel Lorelay, the world’s first pipelay vessel to operate on full dynamic positioning, in 1986. In 1998, Allseas added the 300-m Solitaire to its fleet. The vessel has a pipe carrying capacity of 22,000 t and has achieved pipelay speeds in excess of 9 km per day.. http://allseas.com/equipment/solitaire/ http://www.parool.nl/amsterdam/megasc Tonnage: 59193 Length: 300 m (984 ft) ex stinger 397 m(1302ft) including stinger. Allseas Solitaire - for pipe laying in the Gulf of Finland; Solitaire is the largest pipelaying vessel in the world and has set new standards in the pipelay industry. Operational since 1998 and optimised for laying medium and large diameter pipelines at high speed, she is highly competitive for pipelay projects anywhere in the world.. .