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Six newbuilds ordered for European offshore maintenance projects
Singaporean shipbuilder Strategic Marine will build at least six new support vessels headed for use in the offshore energy sector
Mainprize Offshore has ordered construction of at least six Supa Swath design vessels to operate in northern Europe.
Built by Strategic Marine, the vessels are designed primarily to support offshore windfarms in more remote locations, but they are also equipped for maintenance work support operations on offshore gas, tidal, solar and ocean wave projects.
Mainprize said it could build more with the contract including options for an additional six vessels with the shipbuilder. The contract follows on from the memorandum of understanding (MoU) Mainprize and Strategic signed at the Seawork exhibition in the UK, in June 2024.
“The Supa Swath vessels represent a significant investment in the future of our fleet, offering superior performance and versatility,” said Mainprize Offshore managing director Bob Mainprize. “These contracts align with our vision of advancing maritime technology and expanding our operational capabilities.”
Strategic Marine chief executive Chan Eng Yew said these Supa Swath vessels should “greatly enhance Mainprize Offshore’s fleet and contribute to their continued success in the offshore renewables industry.”
The first of the six Supa Swath vessels, designed by James Walker of Walker Marine Design, is expected to be delivered in Q1 2026.
With the firm six-vessel order, Mainprize will have effectively increased its total fleet to 17 vessels by the end of 2026, with further potential to extend its fleet to 21 by the close of 2028. These figures include the recent deliveries of MO 10 & MO 11, the latest additions to the Mainprize fleet earlier this year.
Supa Swath vessels are designed for stability and efficiency in demanding environments, and with lower fuel consumption for a wide range of maritime activities, including transportation, offshore support and research.
These have small water-plane tin hulls and ability to transfer personnel on to offshore turbine foundations in 2 m wave heights and transport cargo up to 30 tons on a 140 m2 deck area.
MO 10 and MO 11 were also designed by Walker Marine and classed by Bureau Veritas with accommodation to transport 24 personnel and three crew. They have an overall length of 26 m, a beam of 10 m, and maximum power of 3,300 kW from two Caterpillar C32B engines at 2,300 rpm, driving two controllable pitch propellers through ZF gears.
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