New design revamps ‘all-in-one offshore platform‘
March 18, 2026By Seawork Press FP
Strategic Marine (Pte) Ltd
WMD - Walker Marine Design
A new 33m Supa-SWATH CTV is the latest result of a joint venture between Walker Marine Design and Mainprize Offshore.
Originally designed in 2015, the semi-SWATH design is well represented in the Crew Transfer Vessel market, with eight 26-metre vessels in operation and a further six under construction at Strategic Marine in Singapore. Now in its second iteration with improved hull lines resulting in lower resistance, the Supa-SWATH design offers unparalleled seakeeping coupled with high transfer capabilities.
The new 33-metre design introduces expanded features including six cabins, a dedicated crew mess area, a dedicated changing room, and luxury passenger seating for up to 36 industrial personnel. The increased length of 33 metres and a 13-metre beam enhances seakeeping capability, a consideration at a top speed of 30kts. Carrying capacity is significantly increased to accommodate 63,800 litres of fuel oil, 20,100 litres of fresh water, and 50 tonnes of deck cargo.
James Walker, Principal Naval Architect at WMD, said, “The innovative Supa-SWATH CTV design has developed hugely from the first-in-class MO5 built in 2018. With 14 Supa-SWATH vessels built to this design and over £3m spent on R&D over the last 11 years, this new, larger design will increase the operational profile of this vessel range even further.”
Bob Mainprize, Managing Director at Mainprize Offshore, adds, “This 33-metre CTV will perfectly complement our existing range of vessels. It offers our clients an all-in-one offshore platform with improved seakeeping, advanced transfer capabilities, enhanced welfare spaces, and increased carrying capacity. Each of our new builds is refined to suit our clients' finite requirements, from storage options and internal layouts to cargo arrangements.”
The first two vessels of the new class are currently under construction and scheduled for completion in 2027.
Exhibitors; Walker Marine Design and Strategic Marine
Originally designed in 2015, the semi-SWATH design is well represented in the Crew Transfer Vessel market, with eight 26-metre vessels in operation and a further six under construction at Strategic Marine in Singapore. Now in its second iteration with improved hull lines resulting in lower resistance, the Supa-SWATH design offers unparalleled seakeeping coupled with high transfer capabilities.
The new 33-metre design introduces expanded features including six cabins, a dedicated crew mess area, a dedicated changing room, and luxury passenger seating for up to 36 industrial personnel. The increased length of 33 metres and a 13-metre beam enhances seakeeping capability, a consideration at a top speed of 30kts. Carrying capacity is significantly increased to accommodate 63,800 litres of fuel oil, 20,100 litres of fresh water, and 50 tonnes of deck cargo.
James Walker, Principal Naval Architect at WMD, said, “The innovative Supa-SWATH CTV design has developed hugely from the first-in-class MO5 built in 2018. With 14 Supa-SWATH vessels built to this design and over £3m spent on R&D over the last 11 years, this new, larger design will increase the operational profile of this vessel range even further.”
Bob Mainprize, Managing Director at Mainprize Offshore, adds, “This 33-metre CTV will perfectly complement our existing range of vessels. It offers our clients an all-in-one offshore platform with improved seakeeping, advanced transfer capabilities, enhanced welfare spaces, and increased carrying capacity. Each of our new builds is refined to suit our clients' finite requirements, from storage options and internal layouts to cargo arrangements.”
The first two vessels of the new class are currently under construction and scheduled for completion in 2027.
Exhibitors; Walker Marine Design and Strategic Marine
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