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ESNA and Strategic Marine join forces to offer Surface Effect Ship (“SES”) Crew Transfer Vessels (“CTV”) to the market

ESNA and Strategic Marine (“SM”) are delighted to announce that they have signed an agreement to develop a SES CTV (Surface Effect Ship Crew Transfer Vessel) for offshore wind applications. The vessel type offers the combination of higher speed, increased operational wave height and reduced fuel oil consumption.

The plan is to start building the first offshore windfarm SES CTV during the fourth quarter of 2024.

The agreement is based on the parties’ experience in working together with AIRCAT Vessels for three SES crewboats for oil and gas, due for completion this year. This newly inked agreement, also foresees a greater level of collaborations between ESNA and SM for the promotion of SES technology for various target markets, such as offshore wind, oil and gas and security and defence applications.

SM has a long and established track record building CTVs for offshore wind with 36 vessels delivered since 2012. The SES experts in ESNA have worked for more than 40 years with the design, building, construction and operation of SES, and have a deep understanding of the offshore wind industry.

“We are delighted to formalize this agreement and look forward to continue working with ESNA in order to expand the portfolio of SES designs and offer vessels with this very exciting technology to a wider range of our customers.” Says Mr Eng Yew Chan, CEO at Strategic Marine.

“Strategic Marine was a natural choice for ESNA to team up with to further commercialize our technology and designs after having worked with them on other projects and experiencing first hand their excellent shipbuilding capabilities.” Says Mr Trygve Halvorsen Espeland, Naval Architect and Co-Founder of ESNA.

The SES concept for crew transport offers unique competitive advantages. The high speed ensures a shorter transit time and thus more time for work. The active SES motion damping system provides better seakeeping and higher passenger comfort than what is possible with conventional monohulls and catamarans. It is also used at the wind turbines to allow turbine transfers in higher wave heights. The low SES resistance offers fuel savings and reduced emissions in combination with the increased speed.

ESNA is supplying the vessel design package and an equipment package for the main SES systems. The SES equipment package simplifies the complexity during construction by fully replacing hydraulic systems with modular electrical systems. The fully automatic and modern SES control system enhances both energy efficiency and operational performance.

About ESNA

ESNA (Espeland and Skomedal Naval Architects) is a Norway based independent ship design company, specializing in Surface Effect Ships (SES) high speed vessels for fast crew and passenger transport.

ESNA is developing next generation sustainable low and zero emissions high speed vessels, powered by batteries or emission free alternative fuels.

For the oil and gas market, ESNA is teaming with AIRCAT Vessels to deliver fuel efficient high speed crew offshore transport designs, tailored for the oil and gas markets under demanding operational conditions. ESNA’s vessel designs for oil and gas markets are branded as AIRCAT.


For further information, please contact:

Stig Gjelsten
Naval Architect and Head of Sales
Phone: +47 93077261

About Strategic Marine

Strategic Marine Group is a full-capacity global shipbuilder with a focus on specialty aluminium craft construction and fabrication. It has a shipyard in Singapore, and presence in Australia, Europe and the Middle East. It operates principally in five key market segments, producing high quality vessels for Oil & Gas, Renewable Energy, Ferries & Transportation, Defence and Paramilitary and Port / Pilot Services.

Strategic Marine Group has built and delivered more than 600 vessels made of both aluminium and steel for a variety of clients in the maritime, offshore and defence sectors.


For further information, please contact:

Helix PR
Corporate Communications Advisor to Strategic Marine
Lissa Johari
Phone: +65 9876 5764