Strategic Marine lands order for two new CTVs from Mainprize Offshore

Singapore-based shipbuilder Strategic Marine has officially secured a contract with Mainprize Offshore to construct two additional 33-meter Supa Swath crew transfer vessels (CTVs). This latest order brings the total fleet of Supa Swath units commissioned by Mainprize Offshore to ten, highlighting a robust demand for specialized offshore support craft. Designed by Walker Marine Design, these vessels are engineered for high-performance operations in challenging sea states, further cementing the strategic partnership between the two firms in the offshore wind sector.

The construction of these high-speed CTVs must strictly adhere to the International Maritime Organization’s High-Speed Craft (HSC) Code, which mandates rigorous safety and stability standards for vessels operating at speed. Furthermore, compliance with SOLAS Chapter II-1 regarding construction and subdivision is essential for ensuring vessel integrity. Classification society requirements, such as those set by DNV or Bureau Veritas, dictate the structural fire protection and machinery standards necessary for these units to maintain valid certification for offshore wind farm support operations across international waters.

For masters and navigating officers, the introduction of these Supa Swath CTVs requires a thorough understanding of the vessel’s unique motion-dampening characteristics. Navigating officers must familiarize themselves with the specific handling dynamics of the swath hull form during personnel transfers in high sea states. Maintaining operational safety during dynamic positioning and approach maneuvers is critical, requiring crew to stay updated on the latest technical manuals and safety management systems specific to these advanced offshore support platforms.