Catalytic link averts crisis
How an unexpected incident became an object lesson in emergency response. Nick Savvides reports.
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How an unexpected incident became an object lesson in emergency response. Nick Savvides reports.
Jack Gifford MRINA on his journey from boatyard Saturday boy to a Caribbean future.
The Richard B Couch Model Basin at the University of Michigan College of Engineering, following completion of extensive renovations to the 750,000gallon, 360ft-long towing tank facility.
Aaron Cobb MRINA is chief engineer, international navy support, at BAE Systems, Maritime and Land Defence Solutions: vocational training was the basis for a fascinating and fulfilling career and it could be the pathway to success for many more young people.
ClassNK has issued an Approval in Principle (AiP) for a liquefied CO₂ carrier equipped with the Wind Challenger hard sail wind propulsion system.
John Jubb CEng, 94, on one of the most remarkable and troubling episodes in British maritime history in which he played a vital role.
The shift from heavy fuel oil to low-carbon alternatives promises deep emissions cuts but it also introduces a new generation of safety challenges. The challenge now is ensuring the industry meets its decarbonisation goals without compromising on safety.
Hydrogen is moving from pilot projects to mainstream maritime adoption, with landmark vessel orders and emerging bunkering hubs signalling growing industry confidence.
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With more than 1,000 newbuilds and decades of high-speed action under its belt, sports boat brand Performance Marine is celebrating its 40th anniversary this year with the launch of the Performance 90X: a design intended to comprise a “perfect fusion of brute force and absolute control”, the company says.
Getting to this stage has been quite the ride; the company and its various designs passed through several hands over the years before reaching its current German owners, Frauke and Stefan von Klebelsberg, who are now restructuring operations to future-proof Performance Marine’s output.
The 90X is heavily influenced by the hull of the group’s previous, 9m-long Performance 907 sports cruiser: a planing design, built in PVC. The revamped 90X was handled by German yacht design and engineering studio iYacht, which was responsible for both the design and the engineering of the new boat. iYacht encountered a few challenges – not least being the deck, an intricate structure comprising nearly 20 moulded parts.
Udo Hafner, iYacht CEO, tells The Naval Architect: “The deck itself is highly sophisticated, incorporating a wide range of functional and comfort elements. To ensure both safety and stability, our team of designers and engineers worked in close collaboration throughout the entire process, synchronising all aspects of the design.
“We were directly involved with the tooling company, ensuring that every detail was meticulously refined to meet the highest standards. This hands-on approach allowed us to optimise the modular construction, guaranteeing precision and structural integrity while maintaining the performance and aesthetic that define the 90X.”
The 90X boat’s propulsion system offers several options, including inboard Mercury MerCruiser engines with power outputs ranging from 430-1,130hp (approximately 320-843kW), coupled with a Bravo One XR drive. The variations include: two MerCruiser V6, 4.5litre-displacement models, with a total output of 500hp; two V8, 6.2litre-displacement models with a total output of 700hp; two V8, 8.2litre-displacement models with a total output of 860hp; or two V8, 8.7litre-displacement units with a total outputof 1,130hp.
The boat’s top speed comes to an eye-watering 70knots. “The Mercury Zero Effort DTS system replaces traditional throttle and shift cables with cutting-edge digital precision, delivering instantaneous throttle response,” iYacht adds. “This advanced technology ensures an unmatched driving experience with ultra-fast performance.” Future customers can opt for a joystick piloting system, integrating engines, gearboxes, steering and thrusters into a single unit, for greater ease of handling and, especially, docking.
The 90X cockpit was designed with a keyless ignition system that doubles as a wireless engine cut-off switch in an emergency. The onboard infotainment system includes multiple screens across the boat, enabling passengers, the driver and co-pilot to check the vessel’s speed, while a dedicated boat app enables users to remotely monitor battery and fuel levels, or to even change the lighting and start cooling onboard drinks, using smart devices on shore.
As part of its design remit, iYacht also optimised the available onboard space, allowing the designer to produce a cabin with a net headroom of 1.75m and a king-sized bed. iYacht designer Joachim Benders comments: “I spent a great deal of time focusing on ergonomics—exploring the relationship between function, space, and people. I carefully analyse how guests move onboard, and assess how the design translates into real-world experiences for users.”
TECHNICAL PARTICULARS: Performance 90X
Length, oa: 9.15m / Breadth: 2.6m / Draught: 0.43m / Max power: 832kW / Max speed: 70knots / Fuel capacity: 600litres / Water capacity: 117litres / Passengers: 8 / Design category: B
The three new surface effect ships (SES) recently delivered by Strategic Marine to Angola’s Energy Craft fleet are remarkable in more ways than one: sea trials demonstrated a top speed of 53knots but at a similar nautical-mile fuel consumption as far slower boats, writes Stevie Knight. The Crewliner 35 also delivers personnel without making them feel as if they’ve been travelling by cocktail shaker. However, the design’s inception was actually sparked by two dramatic crashes.
First, in 2014, came the sudden decline of the global oil and gas market. This meant day rates dropped like a stone for most vessels, says Eduard Ercegovic, technical director and co-founder of Aircat Vessels – who was then managing a fleet of chartered vessels for an offshore support company. The second was the 2016 Super Puma helicopter disaster in Norway, which claimed the lives of all 13 on board. This was followed by a sudden fall in helicopter availability.
Further, in the background was the ageing state of the long-range, 60-90-pax fast crew vessel (FCV) fleet – the vessel types that Ercegovic often chartered. The speed asked of FCVs means they can’t run forever, he explains: “They just get exhausted.” That left a niche in the market: what was needed was a more cost-effective alternative to helicopter transport and a more efficient, faster boat than a standard FCV.
So, Ercegovic and his colleague, Aircat Vessels managing director Jérôme Arnold, partnered with Norwegian naval architecture firm and SES specialist ESNA to create the Aircat 35 Crewliner. These vessels are basically a cross between a hovercraft and a catamaran; they generate an air cushion between the hulls to reduce resistance by lifting up to 80% of the boat’s weight out of the water. The effect is to reduce the vessel’s draught from 2.4m to a mere 0.8m.
This is achieved by a pair of large, 478kW fans, integrated into the forward half of the hulls. “These are not really custom-made – they’re actually the same blowers that you use for factory ventilation,” Ercegovic reveals. The dual fans push the air into the cushion that’s captured between two skirts; one fore, one aft of the boat’s high tunnel – but these have quite different characteristics. The forward skirt matches the bow angle and is made up of seven vertical, finger-like folds all nestled together, rather than a single sheet. If one of these fingers gets damaged, it will naturally deflate – but its sisters will automatically crowd in to take up the space, providing redundancy.
The rear skirt is very different and better described as a tiered structure of horizontal bags, maintained at just a little more pressure than the main cushion. These stern lobes, with the help of two vents, passively adapt to the waves by forming and reforming around the waves, to reduce pitching and a certain amount of roll – although that’s also minimised by the vessel’s 13.9m beam.
However, the main cushion is more actively modulated by four damper cassettes (vents) controlled by a computerised SES management system, which gathers data from multiple pressure sensors in the tunnel and from a motion reference unit (MRU). Since the electric actuators that open and close the dampers allow instant adjustment, the result is high-speed ride control.
“You can change the setting to maximise the lift and minimise the draught when you are going full speed in relatively calm seas,” says Ercegovic, adding that this leaves just enough draught for the propulsion and cooling to be effective. It’s also possible to dial it down since different, preset modes allow the crew to choose a ‘ride control sensitivity’. “There is some penalty to the speed if you increase the comfort, but it’s usually just a few knots,” Ercegovic says.
Canada’s minister of national defence Bill Blair has announced the award of an implementation contract to Irving Shipbuilding for construction of a new class of destroyers, to be known as the River class. The River-class destroyers will replace the Royal Canadian Navy’s now-retired Iroquois-class destroyers and 12 Halifax-class frigates with a single ship that can handle multiple threats. At present, 15 examples of the vessels are expected to be built.
The design is based on BAE Systems’ Type 26 warship, which is being built by the UK for the Royal Navy, a variant of which is also being built for Australia as the Hunter-class frigate. The first three Canadian ships will be named Fraser, Saint-Laurent and Mackenzie.
The new vessels will have a length overall of 151.4m, a beam of 20.75m and a speed of 27knots. They will displace 7,800tonnes, have a maximum navigational draught of 8m and a range of 7,000nm. With accommodation for 210 personnel, they will have the capability to embark a CH-148 Cyclone helicopter, plus space for embarking remotely piloted systems.
The new destroyers will use a variant of the Aegis combat system with Cooperative Engagement Capability, and will be equipped with lightweight torpedoes, the Rolling Airframe Missile air defence system, two stabilised rapid-fire 30mm naval gun systems and surface-to-surface anti-ship missiles. Their primary air defence system will take the form of vertical launch systems for the Raytheon Standard Missile 2 and Evolved Sea Sparrow missiles. They will have reconfigurable mission and boat bays and a combined diesel-electric or gas (CODLOG) propulsion system based on a Rolls-Royce MT30 gas turbine, four Rolls-Royce MTU diesel generators and GE electric motors.
The initial implementation contract is for an agreed contract period of six years, with a contract extension to follow as the successful construction progresses.
The Government of Canada has established the cost to build and deliver the first three ships at C$22.2 billion (US$15.4 billion). This estimate includes the costs that will be paid to Irving Shipbuilding through the implementation contract, as well as costs associated with the delivery of the equipment, systems and ammunition that Canada will acquire to bring the first three ships into service. It is estimated that the implementation contract will contribute C$719.3 million annually to Canada’s GDP and create or maintain 5,250 jobs annually between 2025-2039.
“By investing in our own industry, Canadian workers are helping to build the fleet of the future, equipping the Navy and our members in uniform modern and versatile ships they need for Canada’s important contributions to peace and security at home, and abroad,” said Blair.
To help bring the River-class vessels into service and support them throughout their lifecycle, the Department of National Defence (DND) is building a land-based testing facility on a portion of DND-owned land in Halifax, Nova Scotia. Construction is expected to begin this summer, with completion expected in 2027.
The Offshore Renewable Energy (ORE) Catapult, UK and the Japanese Floating Wind Technology Research Association (FLOWRA) have signed a memorandum of understanding (MoU) to work towards reducing risks and costs related to floating offshore wind.
The MoU, signed in Tokyo on 7 March, follows nine months of collaboration between ORE Catapult and FLOWRA. The initiative will cover areas such as personnel exchange, standardisation of component technologies and the creation of a “test and demonstration alliance” to develop technology on a large scale, ORE Catapult says. The MoU coincides with a wider recent co-operation between the UK and Japanese governments with regard to the development of these turbine types.
Jonathan Reynolds MP, UK secretary of state for business and trade, comments: “This partnership with Japan will turbocharge the development of this vital renewable energy. International partnerships like this will attract investment and deliver long-term, stable growth that supports skilled jobs and raises living standards across the UK, making our ‘Plan for Change’ a reality.”
The UK government’s Plan for Change aims to “make Britain a clean energy superpower” while kickstarting new economic opportunities for domestic businesses. The ORE Catapult-FLOWRA MoU will ultimately combine “UK R&D capability” and “Japanese industrial manufacturing capacity” for a surge in floating offshore wind technology development, ORE Catapult adds.
As well as providing economic benefits for each country, a robust offshore floating wind capability will bolster energy security for the UK and Japan, while assisting both to pursue their decarbonisation goals, adds Dr Cristina Garcia-Duffy, director of research and technical capabilities at ORE Catapult. For example, the Japanese government has set ambitious targets of 10GW of offshore capacity by 2030, increasing to 45GW by 2040. Floating wind turbines are expected to play a significant role here, due to Japan’s limited availability of shallow-water sites for fixed-bottom turbines.
Additionally, the UK government’s British Energy Security Strategy, rolled out in 2022 in response to gas supply disruption in the wake of the Russia-Ukraine conflict, aims to generate 60GW of electricity from offshore wind sources by 2030, an estimated 5GW of which would be supplied by floating offshore wind turbines.
Norway-based Kongsberg Maritime has secured a leading role in a project to convert the double-ended car ferry MF Hamlet to battery-powered operation. The conversion of the 111.2m ferry, which is operated by Öresundslinjen on the route between Helsingør, Denmark, and Helsingborg, Sweden, will include the installation of battery packs and new permanent magnet motors for the azimuth thrusters.
Kongsberg says: “The primary goals of the project include achieving zero emissions, enabling full electric operation with batteries and having mechanical propulsion redundancy. The ferry will utilise high-voltage charging in port, taking only eight to 12 minutes, with low-voltage charging via gensets as an alternative.”
Kongsberg will also rebuild the existing thrusters and convert them to electric operation, installing new permanent magnet motors for each of the four main azimuth thrusters, each rated 1,530kW. The company adds that it will “provide a comprehensive energy, automation and control package, which includes interface to the main switchboard, retrofitting the K-Chief 600 to the new K-Chief system with an energy management system, and implementing Mcon thruster control with control chairs on the two bridges”.
Energy storage systems will be supplied by Echandia directly to the owner, while the Oresund Drydocks shipyard will handle the mechanical aspects of the conversion. The installation company, SH Group, will produce and install new deck houses and handle the cabling and wiring work.
The conversion job is scheduled to start in November this year at Oresund Drydocks, but the vessel will visit the yard later this month for preparation work during a scheduled maintenance docking.
IHC Dredging has been contracted to supply two Beaver 65-class cutter suction dredgers to PT. Dua Samudera Perkasa, a subsidiary of Indonesia’s Jhonlin Group.
PT. Dua Samudera Perkasa previously took delivery of a Beaver 65, Jhoni 59, in August 2024. That vessel is now working at the coal transport and biodiesel terminal at Batulicin, South Kalimantan, alongside the Beagle 4-class dredger Samson, which IHC delivered to Jhonlin Group in 2023.
The Beaver 65 design features a length overall of 58m, a 12.4m beam and a depth of 2.97m. The dredger type has an average draught of 1.9m (max 2.02m) and more than 2,800kW of installed power.
Like other vessels in the Beaver 65 class, the new duo will be equipped with 650mm-diameter suction/discharge pipes. However, while these dredger types typically have a maximum dredging depth of 18m, this has been extended to 25m max for the new pair.
IHC Dredging adds that each new dredger will be equipped with upgrades including: a fuel separation system; a “state-of-the-art” radioactive production measurement system; and a dredge track presentation system (DTPS) with an accuracy of up to 20mm, providing the dredge operator with a digital overview of the hopper, cutter, excavator, clamshell and bucket line dredges. The two newbuilds are scheduled for delivery in September this year.
Classification society Lloyd’s Register (LR) says it plans to use Microsoft’s Azure OpenAI Service as a tool to accelerate licensing processes for nuclear in maritime applications.
The idea is to use the Azure OpenAI platform to analyse historic nuclear licensing data, which should help licensing engineers to draft new permit documents far more quickly, LR anticipates. The platform will also enable engineers to search for “regulations, precedents and other valuable information buried in large regulatory datasets” in a comparatively timely manner, LR says.
Jeff Scott, LR deputy chief technology and innovation officer, comments: “Regulations shouldn’t be a roadblock to innovation—they should be a launchpad. By teaming up with Microsoft, we’re using AI to cut through the red tape and fast-track the future of nuclear in maritime. It’s an exciting step toward making clean energy a reality on the water.”
Mark Tipping, LR’s global offshore power-to-X director, adds: “We have a large data source from decades of regulatory applications, which these AI capabilities can interrogate swiftly to identify good practice and lessons learned. Together, we’re tackling one of the biggest challenges in deploying nuclear technology, which is navigating complex, slow and costly licensing processes.
“Collaborating with Microsoft provides us with an excellent opportunity to combine two very different areas of expertise: their AI capabilities; and our vast history and knowledge of maritime and nuclear safety.”
One claimed benefit of the Azure OpenAI Service is the ability for end users to ask direct questions instead of writing complex database queries. When used in conjunction with Microsoft’s Azure AISearch, users can search through vast repositories of historic data, including documents, PDFs and databases, using keyword and semantic search capabilities.
Meanwhile, the Japan Society of Naval Architects and Ocean Engineers has launched its Review Committee of Nuclear Energy Utilization in Maritime Industries. Set to run for two years, the Review Committee, headed by Taiga Mitsuyuki, associate professor at Yokohama National University, will analyse the various barriers to maritime nuclear (including technical challenges, public acceptance and financial viability) and how to overcome them, using domestic and international case studies for reference.
The domestic case studies will include input from persons involved in the development of the 130m, nuclear-powered Japanese vessel Mutsu, which was launched in 1969. Built by Ishikawajima-Harima Heavy Industries (now IHI Corporation) and originally powered by a pressurised water reactor (PWR), Mutsu was subject to criticism, and particularly so from local fishermen, after a minor radiation leak during its first test run in 1974. The programme was shelved, and the PWR removed in 1995, with the vessel being repurposed as the oceanographic research ship Mirai.
The Review Committee says it will wrap up its work in November 2026.
Singapore shipyard group Seatrium has turned in an impressive set of results in its first full year of operations since its creation, following the merger of the Sembcorp Marine and Keppel O&M shipyard operations in April 2023. The company achieved an underlying net profit of S$200 million (US$148.3 million) in 2024, compared with a loss of $S28 million in 2023. Revenues surged 27% year-on-year to S$9.2 billion.
One of the driving forces behind the improved results was the performance of its ship repair division, which achieved a 7% increase in revenues to S$1.1 billion. The company worked on a total of 231 ship repair and refit projects during the year, compared with 291 in 2023, thereby achieving a significant increase in the average value of work per vessel.
Chris Ong, Seatrium CEO, says: “Marine decarbonisation and fleet rejuvenation continue to drive demand in this part of our business.” The company recently completed a contract to retrofit the first onboard carbon capture and storage system (CCSS) on board the 160m LPG tanker Clipper Eris for Solvang, as a result of which the vessel will be able to store up to 70% of its carbon emissions on board. Seatrium has recently secured a second CCSS retrofit contract for Mitsui OSK Lines.
Seatrium has also taken steps to strengthen its repeat customer base with regard to ship repair and retrofit work. Over the past year, the company has signed or renewed four favoured customer contracts (FCCs), taking the number of such agreements in place to two as of March 2025. Ong adds: “These FCC contracts are important as they provide us with revenue visibility and enable forward capacity planning.”
Oil and filter changes at 250 or even 500 hours, as recommended in manufacturers’ maintenance manuals, make for a demanding service schedule. However, the introduction of the Fleetguard filtration monitoring system, FleetguardFIT™, proved service intervals could safely be extended to 1500 hours for M/S Hendrika, a dry cargo vessel. This reduced engine maintenance costs by approximately half for ship owners, the de Boer family, based in the Netherlands. Prior to the FleetguardFIT installation, the de Boers serviced the engine oil and filters every 800 hours.
FleetguardFIT, which stands for Filtration Intelligence Technology, monitors filters and engine oil health in real time using smart sensing, state-of-the-art algorithms, cloud computing, and on-board diagnostics. Developed by Atmus Filtration Technologies, this system optimizes filter and oil life. Servicing only when needed saves time and money and avoids unnecessary downtime. In addition, the de Boers discovered that the increase in efficiency provided by FleetguardFIT reduced environmental impact which could help them win more business.
M/S Hendrika
| Vessel type | Dry cargo transportation |
|---|---|
| Length | 85 meter |
| Tonnage | 1438 ton |
| Built | 1981 |
| Operating hours | 10-12 hours, 6 days a week |
Engine
| Manufactured | 2005 |
|---|---|
| Type | Cummins KTA38M |
| Horsepower | 1000 HP |
| Displacement | 38 liter |
| Operating hours | 8-12 hours, 6 days a week |
M/S Hendrika is the first marine vessel in the Netherlands with FleetguardFIT. Installed on the 1,000 HP engine are two LED air filter restriction indicators, an oil quality sensor, and differential pressure sensors for the lubrication filter and the fuel water separator.
Following installation, the de Boers have been able to monitor oil and filters through the FleetguardFIT portal. The color-coded dashboard displays any actions required and the remaining useful life of all monitored consumables. For fleet owners, equipment status can be viewed per vessel, enabling them to track maintenance events and consumable performance over time. One notable aspect of the portal is its critical alert feature. M/S Hendrika avoided costly downtime thanks to a critical air filter alert from FleetguardFIT.
FleetguardFIT can also provide third parties, such as insurance companies, with proof that oil and filter changes have been carried out on time, critical alerts have been responded to promptly, and oil quality has always been correct during the engine’s operating hours.
Paul Louwe, senior technical support engineer for Atmus Filtration Technologies says, “The right filters on high horsepower engines can last two to even eight times longer than manufacturer’s recommendations. Furthermore, predictive maintenance based on real-world conditions can save thousands in unplanned downtime per vessel per year, which can be significant for a fleet owner.”
Although not part of a fleet of vessels, for M/S Hendrika, the benefits of the condition-based monitoring system are clear. As well as meeting the original goal of reducing maintenance costs by extending the life of the oil and filters, it has helped extend equipment life and maximize uptime, while lowering the environmental impact of the business.
FleetguardFIT is suitable for air, oil and fuel filters, and lube oil on diesel and natural gas engines and can be used on other types of non-classed inland-waterway vessels, such as passenger ships and carriers of other types of cargo.
For more information about FleetguardFIT, visit Fleetguard.com
Fleetguard, a brand of Atmus Filtration Technologies Inc., is a leading brand in advanced filtration solutions, offering a wide range of products such as fuel filters, lube filters, air filters, crankcase ventilation, hydraulic filters and coolants.
As something of a stellar year for ship production, 2024 saw a 38% year-on-year increase in orders for alternative-fuelled newbuilds, totalling 515 ships, according to data released by DNV’s Alternative Fuels Insight (AFI) platform.
The AFI data suggests that container ship orders led the charge, with 69% of these orders opting for alt-fuels, predominantly (67%) LNG. Container vessels and car carriers accounted for 62% of all green-fuel orders last year, indicating that the maritime sector is taking decarbonisation seriously. The data also shows that 166 new orders opted for methanol as a fuel, comprising 32% of the AFI order book. Of these methanol orders, 85 were placed in the container ship segment.
Ammonia-fuel vessel orders were also on the up, increasing from eight in 2023 to 27 last year. However, the AFI data underscores that LNG emerged as the industry’s alt-fuel of choice in 2024, accounting for 264 orders; a significant increase on the 130 orders recorded in 2023. The data also highlights that the number of LNG-fuelled ships in service increased to 641 by the end of 2024, with a record number of deliveries (169) of these vessel types recorded in this period. DNV anticipates the number of LNG-powered ships in operation to double by the end of the decade.
This growth has been accompanied by an expansion of LNG bunkering infrastructure, with the number of LNG bunker vessels increasing from 52 in 2023 to 64 last year. However, DNV notes, there is still a demand-supply gap, which is “expected to widen over the next five years, based on the orderbook”. The class society adds: “With the EU regulatory package ‘Fit for 55’ setting requirements on a large network of ports to have LNG bunkering infrastructure, it is expected that the availability of LNG in ports will increase.”
Knut Ørbeck-Nilssen, CEO, maritime at DNV, comments: “While recent figures are promising, we must keep pushing forward. The technological transition is underway, but supply of alternative fuel is still low. As an industry, we need to work with fuel suppliers and other stakeholders to ensure that shipping has access to its share of alternative fuels. It is also important that the safety of seafarers is ensured as we make this transition. This will require investment in upskilling and training.”
DNV shortly followed up on its AFI findings with the publication of a white paper entitled Biofuels in Shipping, in which it assessed biofuels such as fatty acid methyl ester (FAME) and HVO. This paper concludes that both biofuels have significant potential for reducing GHG emissions, thereby aiding compliance with CII, EU ETS and FuelEU Maritime. However, the paper warns, widespread adoption of biofuels is limited by the availability of sustainable, affordable biomass and competition from other sectors.
In 2023, the paper notes, biofuels constituted just 0.3% of shipping’s total energy use. The paper highlights the need for shipowners to consider alt-fuels alongside biofuels, given that biofuel use in shipping mostly involves blending with traditional fuels. Going forward, it will also be important to develop technical and operational considerations for using biofuels as drop-in fuels, accounting for factors such as fuel quality, system compatibility and performance monitoring, the paper cautions.
Coincidentally, 2024 saw Singapore record a surge in alternative fuels adoption, with sales of alt-fuels surpassing 1.3 million tonnes for the first time. Figures released by the Maritime & Port Authority of Singapore (MPA) reveal increases in bunkering sales for biofuels (up 68.5% to 883,000tonnes), LNG (up 318.9% to 464,000tonnes), methanol (2,000tonnes) and ammonia (9.74tonnes).
The MPA is proactively pushing decarbonisation in its waters. For example, under the terms of the Maritime Singapore Green Initiative (MSGI), the MPA has pledged to provide up to 100% port dues concession to any oceangoing vessel calling at the Port of Singapore that uses zero-emissions fuels and technology (including battery power), zero-carbon fuel or certain low-carbon-content fuels and biofuels, until 31 December 2027.
Orkney-based Green Marine is expanding its range of in-house subsea O&M services by investing an undisclosed but seven-figure sum into the creation of a Subsea Services Department, focused on underwater maintenance across UK offshore wind farms.
The new department, which will open in late spring, aims to meet growing demand in an O&M market projected to reach £270 million by 2030, Green Marine says. The department will introduce a range of services, including: general visual inspections; 3D surveys, incorporating real-time simultaneous localisation and mapping (SLAM) analysis; evaluations of the physical, biological and geological conditions of specific marine sites; and O&M monitoring, with a focus on subsea cables/pipelines and offshore structures.
Jason Schofield, Green Marine MD, says: “While this entails an initial seven-figure capital investment, the longer-term company strategy is to continue investing and expanding way into the future. We benefit from a strategic location in Orkney with the world’s second-largest installed offshore wind capacity on our doorstep.” He tells The Naval Architect that a new team will be employed to support the rollout of the department, adding at least three to four full-time jobs. “This will expand quickly as the department and equipment utilisation grow too,” Schofield says.
Green Marine recently received a cash injection from Highlands and Islands Enterprise, which will be used to purchase subsea technology like ROVs and sensors. For example, the company has invested in the VALOR ROV, supplied by Rovtech (which acquired the VALOR line from Seatronics in January). This 860mm-long ROV is rated for a depth of 300m and has a maximum payload capacity of 21kg. Green Marine also intends to shop for tech from companies such as Sonardyne, Norbit, Voyis, Tritech, Digital Edge Subsea and EIVA.
Elaborating on the Subsea Services Department’s purpose, Myles Metson, Green Marine operations and technology director, says: “Ultimately, this means we are not reliant on equipment availability or unknown personnel. We can ensure rapid mobilisation and reduced overheads during off periods. It also relieves a major headache for our clients when reliant on a multitude of equipment, operators and expertise to deliver complex services.”
Green Marine has previously been involved in projects across offshore wind farms including Dogger Bank, Moray East and Triton Knoll, among others. The company also provides crew transfer and dive support services.
Italy’s Fincantieri, one of Europe’s premier cruise shipbuilders, has achieved considerable success of late in this sector. Recently, its Monfalcone shipyard delivered the 160,000gt Mein Schiff Relax, the first of two environmentally friendly InTUItion-class cruise ships with dual-fuel (LNG and MGO) capability that Fincantieri is building for this shipowner. The sister ship will set sail in mid-2026.
The new design features: catalytic converters meeting Euro 6 emissions standards; a generative turbine, using the residual heat from the diesel generators; and an electrical shore-power connection. The vessel is also equipped with an innovative waste treatment system capable of transforming organic materials into recyclable components through a thermal process.
Fincantieri also confirms that a letter of intent signed with Norwegian Cruise Line (NCL) last year has been converted into a firm order for four new cruise ships, each approximately 226,000gt. These vessels, the largest ever built for NCL, will also be constructed at Fincantieri’s Monfalcone yard, with deliveries scheduled for 2030, 2032, 2034 and 2036. This order strengthens the long-standing partnership between Fincantieri and NCL, with Norwegian Aqua, the first unit in the Prima Plus class, set for delivery in the next few months. Additionally, three other vessels are currently in various stages of design and construction.
Alongside its thriving cruise newbuilding activities, Fincantieri has been busy in recent months with several significant vessel refit and upgrade projects. In September 2024, the company completed an important drydock project, including the overhaul of the davits and thruster, and the refurbishment of the laundry, on the Princess Cruises Island Princess. Then, from October to November, Fincantieri undertook a complex engine room overhaul aboard Caribbean Princess in Palermo. Additionally, it carried out mechanical work on the propulsion system, and significant engine maintenance for Costa Deliziosa in its Trieste yard. Then, towards the end of 2024, Fincantieri completed essential maintenance, and five-year class checks, for Virgin Voyages’ Scarlet Lady in Palermo.
Many of these cruise refit and repair projects have had a clear environmental focus. A notable example involved the installation of the advanced wastewater system for Silversea Cruises’ Silver Whisper in Trieste. Furthermore, on many projects, Fincantieri applied silicone paint to reduce friction, save fuel and make the vessels’ cruises more energy-efficient. Fincantieri also has a contract to implement high-voltage shore connection (HVSC) systems on four cruise ships to enable them to shut down their engines during port stays, and is carrying out engineering studies to assess the viability of retrofitting existing cruise vessels to run on methanol or HVO.
Now, Fincantieri seems set to enjoy another busy year for its cruise refit activities. In March and April 2025, it plans back-to-back drydockings of Majestic Princess and Emerald Princess, including five-year class special surveys, hull blasting and silicone painting, thruster and stabiliser overhauls, scrubber work, steel repairs and the installation of new air lubrication and membrane bioreactor systems. The work will also include Americans with Disabilities Act (ADA)-associated upgrades for cabins and public spaces. All of these work packages will be undertaken at Fincantieri’s Palermo shipyard.
In Q3 2025, MSC Lirica and Viking Sea will visit Fincantieri yards for special class survey renewals and planned maintenance activities, while, in November, Silver Muse will undergo a series of conversions and modifications, together with scheduled maintenance works, in Palermo.
Fincantieri is currently investing to enhance its logistics capabilities for cruise projects in Trieste and Palermo, with the aim of improving warehousing, materials handling, maintenance scheduling and transportation for both inbound and outbound logistics. These investments are expected to lead to greater operational efficiency, minimise waste and ensure timely deliveries for clients and suppliers. Additionally, the company is strengthening its Miami subsidiary, Fincantieri Services USA, to provide cruise operators with quick responses to their specific requirements, including ship inspections and onboard assistance for repair and refurbishment activities in North America.
Damen Shipyards Group has unveiled a new range of naval support vessels. The Logistics Support Ship (LSS) design consists of two vessel types, the LSS 9000 and LSS 11000, which are 127m and 140m in length respectively.
“The vessels will be equipped with NATO-standard replenishment-at-sea technology, and will have roll-on/roll-off capability and substantial cargo transportation capacity,” says Damen. They are designed to facilitate the efficient transfer and transport of fuel, munitions, provisions, personnel and other essential supplies, enabling fleets to remain operational during extended deployments.
Damen adds: “With a modular design, the LSS can be easily and rapidly configured and upgraded for special operational requirements, such as disaster relief, humanitarian assistance and training exercises.
“A key feature of the LSS is the ability to operate in diverse maritime environments, from the open ocean to littoral waters. This versatility arises from an advanced design and engineering process and the combination of both military and commercial technology, a combination that helps to reduce OPEX and CAPEX.”
In addition to operational efficiency, and in line with the ambitions of many navies, the LSS design has a focus on sustainability, with the vessels fitted with propulsions systems that will reduce fuel consumption and emissions.
Damen commercial manager for defence and security Piet van Rooij says: “We have developed the LSS based on discussions with our naval clients around the world. As such, we are confident they represent an appropriate response to the operational challenges they are facing, now and in the future. The LSS offers enhanced capabilities, efficiency and sustainability at a very competitive price.”
A report jointly issued by tech firm CORE POWER, marine insurer NorthStandard and class society Lloyd’s Register (LR) paints an optimistic picture for the safe development and installation of small nuclear reactors aboard commercial ships and floating nuclear power plants (FNPPs) in the UK – provided the government gets behind the effort.
The paper, entitled Advanced Maritime Nuclear: A Unique Opportunity for the UK, argues that the Department for Transport must incorporate nuclear-fuelled vessels and FNPPs into an updated version of its Clean Maritime Plan, to meet IMO greenhouse gas (GHG) emissions reduction targets and to benefit from a £2.5 trillion economic opportunity, potentially revitalising the UK shipbuilding segment.
Over the past five years, attitudes toward using nuclear energy as ship’s fuel have shifted significantly. Since the 1950s, nuclear reactors have powered multiple warships and submarines. However, the concept of installing small reactors aboard commercial vessels, such as ferries, cruise ships, OSVs or superyachts, was generally discounted, largely because of nuclear power’s ‘bad’ reputation.
However, rising energy costs, plus growing doubts about the accessibility of alternative fuels such as hydrogen, HVO, methanol and ammonia, have sparked new interest in nuclear energy for ships. A small but growing band of shipping professionals now view the deployment of small modular reactors aboard commercial vessels as one of the most likely means of meeting IMO’s plan to realise net-zero greenhouse gas emissions from international shipping by 2050.
Additionally, at COP 28, hosted in Dubai in 2023, the UK pledged to triple nuclear energy generation with the launch of its Civil Nuclear Roadmap to 2050 – a publication that included nuclear-fuelled ships on the agenda. In December 2022, the UK’s Merchant Shipping (Nuclear Ships) Regulations came into effect, accompanied by Marine Guidance Note on nuclear ships MGN 679 (M), which addresses areas such as safety assessments, design and construction, radiation safety and reactor installation suitability.
In the foreword to the recent joint paper, British hereditary peer and shipbroker Lord Mountevans writes: “The UK has the skills, expertise and history of innovation to lead the development of nuclear-powered shipping. By leveraging our decades of experience with small reactors for the Royal Navy, we can decarbonise maritime transport, create jobs and strengthen Britain’s position as a clean energy world power. This is a unique opportunity for the UK.”
The paper also proposes that nuclear-powered ships could feed energy back into land-based grids, providing electricity to homes and ports, as well as to areas affected by power blackouts. “FNPPs could also be used to alleviate the issues surrounding shore power and expensive connections to the UK national grid,” the authors state.
Outstanding insurance and regulatory gaps must also be addressed, though, the paper notes. Paul Jennings, MD of NorthStandard, comments: “The ability to commercially insure nuclear-propelled ships will be vital to the success of bringing nuclear to maritime. It is important that governments understand the need for a civil marine nuclear liability convention within the framework of IMO and work towards creating an appropriate liability regime.”
Jennings is echoed by Andy McKeran, LR’s chief commercial officer, who says: “Global regulatory alignment is crucial. Existing frameworks must be updated to reflect modern reactor designs and operational needs. The UK has the expertise to lead these efforts at IMO and with the International Atomic Energy Agency [IAEA], setting the foundation for safe, insurable and scalable nuclear-powered shipping.”
Meanwhile, CORE POWER CEO Mikal Bøe remarks: “Maritime nuclear is the catalyst that can reverse the trajectory of the British shipping sector, creating unique competition to Chinese shipbuilding and ocean transport.” He warns: “Over time, the cost of inaction will far outweigh the cost of being the champion in this rapidly emerging market.”
The March issue of The Naval Architect features an interview with pro-nuclear advocate Dr Jonathan Stephens, manager, core design at BWX Technologies, assessing the current and future viability of small reactor installations aboard various vessel types and FNPPs
The UK shipbuilding sector needs to address significant skills shortages in AI, robotics and automation if it is to thrive in the long term, a report from National Manufacturing Institute Scotland (NMIS) claims.
The report outlines the need to further adopt these three emerging technologies to enhance operations such as welding, joining and inspections in confined or hazardous spaces.
“The roles of some welders will evolve to combine traditional skills with expertise in new technologies and materials, as advanced technologies such as robotics and additive manufacturing are integrated into operations,” NMIS writes.
Greg Cranstoun, industry and skills engagement lead at NMIS, comments: “Scotland has a deep-rooted history of shipbuilding, particularly on the Clyde, but the challenges of a skills shortage apply to the whole of the UK.”
NMIS notes that, in 2022, shipbuilding contributed £3.1 billion to the UK economy, supporting more than 44,600 jobs. That year also marked the introduction of the National Shipbuilding Strategy, which has called for a 50% reduction in the UK sector’s skills shortage by 2030.
“We need to ensure we have the right people with the right skills lined up to meet demand,” says Cranstoun. “Technology is only going to become more prevalent as the adoption of AI and robotics increases in all sectors, and there are significant gains that could come from using advanced equipment to improve both health and safety and productivity in shipyards.
“Manufacturers need to think ahead to the types of roles this will create, and how to equip the current workforce and future employees with the skills to take this forward.”
As for how to get there, the report calls for a “collaborative approach between industry and training providers, to design programmes that prepare workers for these hybrid roles”. This approach would include the updating (and tailoring) of existing training courses for relevance, and the development of new training courses. Stakeholders should also drive new educational standards and targeted curricula while implementing short courses and continuous professional development (CPD) programmes to plug current knowledge and skills gaps.
The report also recommends the creation of new job descriptions, including (but not limited to): quality control inspector in shipbuilding; robotics integration engineer; welding engineer; industrial equipment maintenance technician; and robotics systems design and implementation engineer, for example. These newly defined roles should help manufacturers to evaluate gaps between existing roles and future requirements, the report opines.
NMIS, which is operated by the University of Strathclyde, collaborated with Innovate UK’s Workforce Foresighting Hub to produce the report, drawing on the latter’s advanced AI tools and workshop and survey findings to capture and analyse the data. NMIS adds that these collated insights could also be adopted and acted on by other sectors, including offshore wind and oil and gas.
Meanwhile, Mantas Lukauskas, self-styled ‘AI evangelist’ at neoxis.ai, says that the current “AI gold rush era” has accelerated developments in AI and machine learning to the extent that some companies may struggle to keep up with the pace of change.
“The more models appear, the harder it becomes to keep track of them all, let alone experiment and deploy them effectively,” Lukauskas says. “However, the multi-model ambitions quickly become technically and logistically complex.” He warns that the AI landscape “will only get more crowded” in the run-up to 2030.
Lukaskaus recommends weighing up considerations such as complexity, security and compliance, performance variance and cost before committing to new AI or machine-learning tech. The best solution may be to rely on a centralised platform that can speak to multiple providers via a single interface, he continues, adding: “The real competitive advantage is to stay nimble.”
Ulstein Design & Solutions has been contracted to provide the design for a heavy-lift ship for Japanese contractor Penta-Ocean Construction (POC). The vessel will specialise in offshore wind foundation installation work within the country’s waters, and will comprise a customised version of Ulstein’s HX118 design, which features a length of 215m, a 56m beam and a maximum draught of between 7.5-10m.
The customised design includes a tub-mounted, revolving, 5,000tonne-capacity Huisman main crane, permitting heavy-duty monopile installations. The crane comes with a main hoist and a universal quick connector, and has been designed with a compact tail swing, to optimise available deck space. Huisman will also supply the ship’s monopile-handling system, which features a motion-compensated pile gripper.
Ulstein has also incorporated its U-STERN concept into the vessel’s design. The U-STERN enables longitudinal storage of large components, such as monopiles, meaning these components can be stored along the length of the ship rather than across it, thereby maximising space and preventing overhanging.
When it’s time to install these components, the U-STERN enables them to be upended (lifted vertically) directly along the ship’s centreline. The U-STERN design also allows the ship to face directly into the waves during the installation process, reducing the impact of wave motion on the ship, to make the installation process smoother and safer – as well as to reduce fuel consumption by minimising the ship’s need to compensate for wave-induced movements.
Ulstein comments: “Combining the U-STERN with transverse and longitudinal skidding systems, offshore lifts for monopiles are eliminated as the main crane is only used to support the upending and lowering of the foundation.”
Both Ulstein and POC have been tweaking the ship’s basic design since summer 2024, including a round of extensive model tests. The heavy-lifter will be built by Singapore’s Seatrium Group, with completion scheduled for May 2028 and operations set to commence in the autumn of that year, Ulstein tells The Naval Architect.
The Bundestag and the Federal Government have agreed to exercise an option to procure four more Type 212CD submarines for the German Navy. The contract for the new submarines, which are being acquired by the German Navy and Royal Norwegian Navy under a joint programme, is one of the largest secured by thyssenkrupp Marine Systems.
The deal was initialled by the president of the Bundeswehr Procurement Agency, Annette Lehnigk-Emden, and thyssenkrupp Marine Systems CEO Oliver Burkhard in late December 2024. Germany will now build six Type 212CDs. Norway has also recently signalled its intention to increase the number of submarines it builds under the joint programme from four to six.
Speaking as that deal was confirmed, Burkhard said: “A turning point in history is finally arriving in the maritime sector. We are delighted at the trust that the German government has once again placed in us with the additional order. We are making a decisive contribution to Germany’s response to changing times and strengthening our defence capabilities with this strategically important project between Germany and Norway.”
The Type 212CD submarines will be significantly more capable than the German Navy’s existing Type 212A boats, with enhanced situational awareness, superior networking with allied units and a reduced signature.
In advance of the construction of the submarines, thyssenkrupp Marine Systems has invested more than €250 million at the company’s yard in Kiel, including a new shipbuilding hall. The group has also acquired additional shipyard capacity at the former MV Werften site in Wismar, to be able to build submarines and surface vessels there at the same time.
“Our order books are well-filled and we are strongly positioned nationally and internationally,” said Burkhard, noting that now that the number of Type 212CD submarines on order has been increased, other countries could join the project in the near future. “Our strong position has now become even stronger,” he concluded.
A team-up between boatbuilder/USV manufacturer Tuco Marine and maritime survey tech company EIVA aims to establish an all-in-one autonomous package for subsea asset inspections, matching a Tuco-built ProZero 8m Naval Intelligence USV to EIVA’s ViperFish remotely operated towed vehicle (ROTV).
In practice, the USV would sail to an area of interest, towing and remotely launching the ViperFish. The ViperFish would be equipped with sensors and survey software, and would undertake high-resolution seabed imaging, with area coverage rates of 1.6km2/hr, while using magnetic signals to monitor subsea assets, such as power cables.
Jonas Pedersen, MD of Tuco Marine, comments: “By combining…our ProZero with EIVA’s ROTV, it’s possible to monitor the conditions of critical subsea infrastructure much more thoroughly and frequently than with conventional set-ups.”
Launched in 2023, the ViperFish measures 3,200mm x 1,300mm x 620mm and is rated for depths descending to 200m. The ROTV is designed for surveys at 2-10knots, and has a reported target positioning accuracy of 1m. EIVA suggests that, when integrated with an USV, the ViperFish can also be used for mine countermeasures, rapid environmental assessment, surveillance and salvage missions.
The commissioning this week of three frontline naval vessels by the Indian Navy marks a “significant milestone in India’s shipbuilding and design capabilities”, according to analytics firm GlobalData.
January 15 saw the entries of INS Surat (163m), the fourth and final unit of the Visakhapatnam class of stealth guided-missile destroyers; INS Nilgiri (149m), the lead ship of the Nilgiri class of stealth guided-missile frigates; and INS Vagsheer (67.5m), the sixth of six Kalvari-class diesel-electric submarines. The vessels were constructed by Mazagon Dock Shipbuilders Limited (MDL), Mumbai.
Rithik Rao, aerospace and defence analyst at GlobalData, writes: “Armed with advanced weaponry such as BrahMos and Barak 8 missiles, both INS Surat and INS Nilgiri provide the Indian Navy with enhanced anti-surface and anti-air warfare capabilities, excelling in both offensive and defensive roles.
“INS Vagsheer excels in a range of operations, including anti-surface and anti-submarine warfare, intelligence gathering and area surveillance. Together, these domestically built platforms demonstrate India’s growing competence in developing cutting-edge naval technologies, thereby strengthening its maritime security and reinforcing its strategic autonomy in defence production.”
Rao adds that India has felt the need to step up its naval defence capabilities due to “the increasing maritime presence” of the Chinese People’s Liberation Army Navy (PLA Navy) in the Indian Ocean Region. “[India] is trying to catch up with its Chinese counterparts in terms of quantity and technology advancements,” Rao says. GlobalData has forecast that India will spend just over US$35 billion on various domestically built naval vessels and subs in the run-up to 2029.
“Shipbuilders such as MDL stand to benefit significantly, leveraging the expertise gained from constructing complex naval platforms,” says Rao. “Such advancements will lay a strong foundation for future collaborations between major domestic defence contractors and many small and medium suppliers in upcoming next-generation submarine and naval vessel construction programmes, ensuring the Indian Navy remains well-equipped to meet evolving challenges in the upcoming decades.”
Speaking at the commissioning ceremony, Indian prime minister Narender Modi commented: “I am happy that our Navy has expanded the ‘Make In India’ campaign to a great extent. In the last 10 years, 33 ships and seven submarines have been inducted into the Indian Navy. Out of these 40 naval vessels, 39 have been built in Indian shipyards.
“Along with increasing the strength of the Indian armed forces, ‘Make In India’ is also opening new doors of economic progress. The shipbuilding ecosystem is an example. Experts also say that the more investment is made in shipbuilding, the more positive impact it has on the economy.”
The International Association of Classification Societies (IACS) has published a new recommendation, titled Rec. 182, to provide a “comprehensive framework” to support the adoption of onshore power supply (OPS) systems.
Rec. 182 was drawn up to provide “detailed guidance for ship designers, builders, operators and owners on integrating OPS systems into both newbuilds and retrofits, while addressing the technical and operational challenges associated with its implementation”, IACS states. The recommendation is intended to complement IMO’s MSC.1/Circ.1675 – Interim Guidelines on the Safe Operation of OPS Service in Port for Ships Engaged on International Voyages, IACS adds.
Subsequently, Rec. 182 outlines aspects such as: ship requirements for OPS; ship-to-shore connection protocols, with an emphasis on safe connection and disconnection; and testing procedures, for both the first connection and periodic check-ups. IACS states: “At the first call at a shore supply point, ships should undergo mandatory tests, including visual inspections, insulation resistance measurements, functional tests of protection devices and integration tests, to ensure proper operation between ship and shore installations.
“If the time between repeated port calls does not exceed 12 months and no modifications have been made, only limited verification tests are required. However, if the interval exceeds 12 months, comprehensive testing as outlined in the document should be conducted.”
Rec. 182 also covers operational safety measures, including the use of suitable PPE, plus ensuring “effective communication” between shipboard crew and shoreside personnel during connection/disconnection procedures. Documentation of OPS operation procedures – which would include circuit diagrams, compatibility assessments and emergency shutdown protocols – is also underscored in the recommendation, as is a pre-connection safety checklist.
IACS says: “The shift towards decarbonisation has placed a spotlight on reducing emissions from seagoing vessels while at ports, where vessels often rely on auxiliary engines that contribute to greenhouse gas [GHG] emissions. OPS, commonly referred to as ‘cold ironing’ or shore-to-ship power, has emerged as a promising solution, allowing vessels to connect to a land-based electrical grid while at berth, enabling their onboard generators to be switched off.” Cold ironing has been credited with significantly cuttting NOx and SOx emissions, plus particulate matter (PM) levels, in port areas, enabling the future development of sustainable ports.
Rec. 182 can be accessed at the IACS website.
Damen Shiprepair Oranjewerf is strengthening its commitment to green ship repair, maintenance, conversion and refit projects with a recent shore power installation. The yard had already installed a shore power unit which was suited to many of its projects. However, with this latest installation, developed by Elma Systems, the availability of clean onshore power, converted to 60Hz, has been widened to cover all types of vessel that call at the yard.
Commercial manager Jeen van der Werf explains: “Previously, we were able to provide shore power at 50Hz. However, we get a lot of offshore, navy and fishing vessels come to the yard for work, and many of these vessels operate on 60Hz.” As a result, he says, the yard often had to hire in a diesel-powered generator; something the company was keen to avoid.
Damen Shiprepair Oranjewerf began discussions with Elma Systems to address this issue. Together, the two companies set about the development of a solution that was more in tune with the yard’s needs, and Elma came up with a rotary convertor, which converts the shore power to the desired 60Hz rating.
The shore power system, which is installed on the yard’s floating dock, can support up to 250kVA. Should more power be required, there is an option to add a battery or secondary power source. The Elma-designed rotary converter is therefore also equipped with a load sharing system.
With this new shore power system now fully operational, Damen Shiprepair Oranjewerf expects to significantly reduce its carbon emissions. As an additional benefit, the wider use of shore power means that the yard no longer has to hire in costly diesel generators, and is, therefore, able to offer its clients a more competitively priced project.
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When class surveyor Panagiotis Katsinellos began a routine document trawl on a chemical tanker detained in Heraklion, Crete, the situation turned into a full-scale emergency – and an excellent display of teamwork.
Katsinellos, a surveyor for a leading classification society and a fellow at both RINA and IMarEST, had been dispatched to the vessel, which for the purposes of this story we will call the MV Crete, after port state control (PSC) had detained the vessel, requiring the crew to update critical documentation.
Shortly after his arrival onboard MV Crete, a fire in the engine room set off alarms, and changed the whole nature of the visit, according to Katsinellos, with the requirements suddenly very different for both the crew and the maritime surveyor as they moved quickly to deal with the blaze.
“A high-pressure flexible pipe on the air compressor suffered a mechanical failure, resulting in a high-pressure oil leak. The atomised oil ignited upon contact with a hot surface, creating an immediate fire hazard,” says Katsinellos.
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Emergency measures
A visit that started out as preparing, reviewing and approving critical documentation and a comprehensive evidence package was now a full-blown emergency. The fire presented an acute risk to the vessel as the air compressor was situated directly adjacent to a fuel tank.
“The primary threat was the rapid conduction of heat to the fuel storage,” says Katsinellos, “which could have led to a secondary, uncontained explosion and a total loss of the machinery space.”
However, the crew, including the senior officers, reacted with speed and discipline. They used portable fire extinguishers to cool the fire-affected area. “Their decisive action contained the fire before boundary cooling became impossible,” says Katsinellos.
The master had immediately contacted PSC and the Hellenic Coast Guard making sure that they were fully briefed and that firefighting tugs remained on standby.
Katsinellos, meanwhile, provided a clear line of communication between the crew and PSC, thereby helping to speed up the crew and shoreside reaction times.
Katsinellos supplied detailed technical information to PSC and the coastguard so that, should they need to intervene, they would have a comprehensive view of the layout of the vessel’s critical engine room.
Following the successful conclusion of the emergency, the surveyor was able to provide a damage survey, verifying that the vessel’s safety systems were operational, and allowing PSC to remain confident in the safety and security of the vessel.
This incident highlights that while high-pressure pipe failures are a known technical risk, the outcome is dictated by the seafarers’ reaction. The combination of a rapid crew response, transparent communication by the master, and the technical seniority of the class surveyor turned a potential disaster into a managed incident, says Katsinellos.
An opportunity to learn
Serendipity played a part in this event with the emergency offering Katsinellos a live lesson on the paper gap; the difference between perfect certification and a physical response.
He says: “Being onboard during a fire provided me with a rare front-row seat to the gap between theoretical safety and real-world chaos. From a surveyor’s perspective, this experience transformed a understanding of shipboard safety from a compliance check into a survival reality.”
Stress testing fire drills
In Katsinellos’ view the industry can learn from such experiences. He adds that it is critical for fire drills to move beyond “muscle memory” and that they should be stress tested.
“A crew’s response is rarely perfect; it is messy,” he notes, and that means that industry training must focus on the human element, “training crews to communicate clearly under the deafening noise of alarms and the disorientation of smoke”.
Moreover, in an emergency, PSC’s role is transformed from regulatory enforcement to risk management, while class plays a key role in establishing the necessary reaction to an emergency, given that it has in-depth technical knowledge of the ship. That requires class and PSC to work together effectively, and for that there must be pre-established trust.
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“The industry should encourage more joint walkthroughs to build rapport before a crisis hits. Someone in a technical liaison role is critical to bridge the gap between shoreside tactics and maritime reality,” the surveyor says.
Each incident is a chance for the industry to analyse and learn, and this, comparatively minor, incident offers some rich rewards, particularly where the subject of collaboration is concerned, and the value of experienced, knowledgeable crew.
Invaluable experience
The presence of an experienced surveyor provided PSC with the technical layouts of the ship, including fire zones, fuel tank locations and structural boundaries. This helped PSC and the firefighting tug decide where to focus their work should cooling efforts to prevent structural failure become necessary.
In fact, in this case the crew’s rapid response meant that boundary cooling was unnecessary.
That response was aided by Katsinellos as the ‘catalytic link’. “I translated technical class requirements into actionable status updates for the commander, ensuring the authorities knew exactly which safety systems were compromised in real time.”
The instant collaboration was so effective that commander Stavros Papaderakis wrote to Katsinellos regarding the MV Crete incident: “On behalf of the main PSC inspection office of Heraklion, Crete, I would like to extend our sincere gratitude for your exceptional support and professionalism.”
A pivotal role
Notably, the commander emphasised the importance of the ‘catalytic’ link to the success of the operation.
“Your personal skills and unwavering commitment to monitoring the case played a pivotal role in achieving an accurate and effective resolution,” he said.
“Your presence during the onboard fire incident was truly catalytic. By standing in a hazardous environment and acting as a liaison between the authorities and the ship’s parties, you demonstrated remarkable courage and composure under pressure. Your actions ensured clear communication and coordination at a critical moment.”
This article appeared in Emergency response, TNA May/June 2026.
Why did you choose a career as a naval architect?
A local family friend introduced me to the concept of a naval architect at the same time as I was becoming obsessed with sailing. Dinghy racing with my father, I grew to admire the classic yachts where we sailed at Aldeburgh. When I became the ‘Saturday boy’ at the local boatyard, the owner, Peter Wilson, asked me what I wanted to do when I left school. He was rather surprised when I said I wanted to be a naval architect. From then on he encouraged me to learn as much as I could about boatbuilding and design, lending me books and quizzing me about them.
How did you go about getting an education?
Solent University’s Yacht Design and Production course is the stuff of legends, providing the building blocks for most renowned yacht designers and naval architects of recent decades. It lived up to its reputation, and after three years of pure indulgence in my chosen subject, I was raring to go.
What happened after university?
My first job at G.L. Watson was hugely formative, working with designs I had previously read about and participating in some important yacht restoration projects. I was thrilled to meet and work with some of the greats. It was only the diversity of life outside classic yachts and a desire to learn from a broader church that tempted me away.
After a year in the Netherlands working on the design of very large yachts, I had a thorough education in design office discipline. The subsequent restoration of a 1937 Camper & Nicholson Motor Yacht at Pendennis Shipyard had proved another triumph for the G.L. Watson team but at the end of a three-year project, Cornwall proved hard to leave.
What happened next?
Starting my own office had always been in the back of my head and it was apparent that the south west offered a wealth of diverse opportunities for someone with my accumulated skill set and experience.
I set up my office in 2016 and embarked on seven years of fascinating projects, travel and experiences, and serving the commercial, leisure and research sectors. I was able to take on a junior naval architect and share the knowledge and opportunity that had come my way.
What other roles have you taken on?
Conversations with two separate MCA surveyors led me to a job as an MCA surveyor; a demanding role that comes with no shortage of responsibility, pressures and demands focused on maritime and environmental safety.
Still based in the south west of England, I benefited from some of the best maritime training available, counting a diverse group of hugely competent naval architects, engineers and mariners as my colleagues.
Working with the local fishing fleet was a highlight, becoming familiar with vessel owners and operators who had as close a tie to their vessels as any, each with their own particular challenges and priorities to understand and work with.
The MCA taught me how to be a civil servant and how, no matter the size and complexity of the vessel, from a 400m container ship to a 6m open fishing boat, they are equally deserving of clear and concise professional engagement. The Agency is excellent at matching skill sets to tasks and my knowledge of stability and structures was put to good use.
What now?
I am off to the Caribbean to run a thriving boatyard in English Harbour, Antigua. I hope my skills and experience will contribute to the yard going from strength to strength in supporting the local industry and visiting trade. My existing toolkit of skills will no doubt come in handy but I am looking forward to learning the needs and challenges of my new workplace.
What’s your advice for others?
To anyone thinking of running their own office, go for it! It’s tough, but hugely rewarding. It allows you to go for the work that really interests you and to learn and grow into specialisms that will enthuse you for years.
I have been a RINA member since day one at university when former CEO Trevor Blakeley visited and handed out the forms. Now as a longstanding full member who only recently got their act together to become chartered, I can confidently say that naval architecture has been everything I wanted in a career and more. I am proud to say ‘I am a naval architect’, and, while you never know what the next project will bring, one thing is for certain, you never stop learning.
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This article appeared in Members, TNA May/June 2026.
The Richard B Couch Model Basin at the University of Michigan College of Engineering, following completion of extensive renovations to the 750,000gallon, 360ft-long towing tank facility. The reopening ceremony marked the occasion with a “mixing of the waters”, in which water contributed by 41 hydrodynamics laboratories across 20 countries was poured into the basin, a gesture reflecting the global community the facility has long served.
The basin is the largest towing tank at a US university. Over its 120-year history it has been central to some of the most consequential advances in naval architecture, among them the development of the bulbous bow, the hull form optimisation that reduces wave-making resistance and is now fitted to most large commercial vessels, which combined carry approximately 90% of world trade by volume.
This article appeared in The Big Picture, TNA May/June 2026
When I was 16, a team from Fleet Maintenance & Repair Organisation, later BAE Systems, came to my school to talk to us about apprenticeships, specifically warships. There’s something mesmerising about vast grey ships fitted with missiles and guns, so I took the application pack home.
Little did I know that that single decision would set me on a 30-year career supporting the ships of the Royal Navy.
In 1997, I began my apprenticeship as a plater/fabricator in Portsmouth. It gave me the opportunity to continue my education while learning a skilled trade on the job. Over the next three years, I worked on a wide range of platforms including CVS, Type 22/23 frigates and Type 42 destroyers, and was able to experience other parts of the business, including procurement, planning and design. It was there that something clicked: I realised I wanted to understand why things were designed the way they were, not just how to build them.
There were, of course, parts of the apprenticeship that I did not enjoy, but understanding what doesn’t motivate you is as important as discovering what does. The exposure to a large organisation and its many functions was a huge benefit, and by the time I’d completed my apprenticeship, my career path had started to take shape, and I became a design engineer.
Nevertheless, there was always a part of me that regretted not taking an academic route, but that regret became motivation. Fortunately for me, BAE Systems supports further and higher education and is filled with managers and leaders committed to nurturing and developing talent. This allowed me to build on the foundations laid during my apprenticeship while expanding my knowledge through academic study.
My journey into naval architecture began with a last-minute request to support an inclining experiment in Scotland. That week proved transformative. I found a discipline I was genuinely passionate about, and it opened the door to the career I have today. A year later, I transferred into the naval architecture team and, in parallel, began studying for a master’s degree through the MTEC programme, designed for those in employment and run by the University of Newcastle. I went on to achieve Chartered Engineer status through RINA a few years later.
Today, as a chief engineer at BAE Systems, I look around and see colleagues who have arrived here via many different routes. That variety of experience brings diversity of thought, which ultimately benefits the Royal Navy, and our wider customer base, and creates a rewarding place to work.
STEM Ambassador programme
RINA is calling on members to support its STEM Ambassador programme, connecting experienced engineers with schools and colleges to raise awareness of naval architecture among young people. Despite offering careers at the forefront of technology and sustainability, the discipline remains poorly understood by students, while the maritime industry faces a well-documented shortage of skilled engineers.
The programme is flexible, with a minimum commitment of one activity per year. Ambassadors deliver talks, workshops and mentoring, while also developing their own professional skills. Registration is straightforward via the STEM Learning platform.
This article appeared in Members, TNA May/June 2026.
ClassNK has issued an Approval in Principle (AiP) for a liquefied CO₂ carrier equipped with the Wind Challenger hard sail wind propulsion system, jointly developed by Mitsui O.S.K. Lines and Samsung Heavy Industries. The certificate was presented at a handover ceremony held at Sea Japan 2026.
The AiP confirms the feasibility of the vessel’s conceptual design against applicable rules and safety requirements. ClassNK carried out its review against its Rules and Guidance for the Survey and Construction of Steel Ships and its Guidelines for Wind-Assisted Propulsion Systems for Ships (Edition 2.2).
The vessel presents a notably complex design challenge, combining three distinct technical elements – a forward accommodation arrangement, liquefied CO₂ cargo systems and multiple Wind Challenger units – each of which carries its own risk profile. ClassNK participated in a HAZID risk assessment before issuing the AiP.
This article appeared in Insights, TNA May/June 2026
It is now some 25 years since the conclusion of the Second Formal Inquiry into the loss of MV Derbyshire. The vessel disappeared in September 1980 while on passage from Canada to Japan, carrying over 100,000 tonnes of iron ore. She was lost some hundreds of miles south of Japan in waters 2½ miles deep. At 169,000dwt she remains the largest British merchant vessel ever lost at sea. All 42 crew and two wives aboard perished. The Japanese Maritime Safety Agency reported two oil slicks some 20nm apart in a region where Typhoon Orchid had occurred, but there was no sign of the vessel itself.
Government apathy
What followed was the most disgraceful episode in UK shipping history. Despite the Derbyshire being British-built, British-crewed, UK-classified and UK-owned, there was no significant government response to her loss. Fourteen secretaries of state for transport came and went without ordering any on-site investigation. It was left entirely to the dependants of the 42 crew to pursue the matter, forming the Derbyshire Family Association under the able chairmanship of Paul Lambert. Captain David Ramwell’s efforts in cajoling and convening politicians in Westminster should not be forgotten, either.
The first formal inquiry was inconclusive; the wreck had not been located, though it correctly speculated that the vessel had probably been overcome by the sea. Marine surveyor Peter Ridyard, who had lost a son in the disaster, established prior to the inquiry that the five sister ships had cracking in their deck structures close to the forward faces of the superstructure, at the junction with frame 65.
The hypothesis developed that when these large bulk carriers encountered very large waves in severe sea conditions, the resulting peak stresses sought out local weaknesses in the structure, causing the deck to tear locally at frame 65. The stern would sink at the point of fracture while the nine forward holds floated free until they too foundered. The two oil slicks appeared consistent with this scenario, though this interpretation was later revised.
The critical moment came on 22 July 1993 at a meeting of the International Transport Workers’ Federation attended by NUMAST, the National Union of Seamen and the Derbyshire Family Association. Shaun Kent, a lateral thinker who had studied the seabed conditions at the loss site and who had previously recovered a car-sized section of Derbyshire’s sister ship Kowloon Bridge, including fractures adjacent to the superstructure, proposed a £2m search of the seabed. The proposal was rejected, but a £25,000 investigatory contract was agreed as an alternative.
From this modest sum, David Mearns of Oceaneering was awarded £7,250 to visit Japan and consult the Japanese Maritime Agency. He returned with a finding that proved decisive: one of the two reported oil upwellings had been based on a false helicopter sighting, the aircraft not having had the range to reach the location. This destroyed the two-part fracture hypothesis but, crucially, concentrated the search on a single, much smaller area of seabed. The wreck was found within a week.
Conclusive evidence
A subsequent £2.25m government-funded expedition produced a photographic montage of more than 600 pieces of wreckage across 37,000 images. The evidence showed that the Derbyshire had partially flooded and descended like a submarine, the external pressure at depth causing a massive implosion that accounted for the scale of the destruction. The ensuing investigations led ultimately to a change in IMO rules, mandating stronger hatch cover loading standards for bulk carriers in heavy seas.
Between 1950 and 2000, more than 100 bulk carriers sank and some 1,500 seamen drowned. These losses reflected a catastrophic and prolonged failure of the shipping industry and its regulators. The Derbyshire Family Association, through 20 years of persistence against considerable institutional resistance, changed that. They deserve their place in maritime history for finding the Derbyshire and improving bulk carrier safety. I’m proud to have played my part.
This article appeared in Members, TNA May/June 2026.
Orca AI has signed a Memorandum of Understanding with Samsung Heavy Industries (SHI) to jointly develop and deploy autonomous vessel technologies across both newbuild and retrofit markets.
The phased collaboration will combine SHI’s autonomous solutions with Orca AI’s AI-powered maritime operations system, covering AI-assisted navigation, berthing and speed optimisation.
As part of the agreement, Orca AI will integrate SHI’s SVISION berthing assistance system and autonomous speed control solution into its suite, which currently covers more than 1,200 vessels.
SHI will in turn embed Orca AI’s technology as standard on newbuild vessels equipped with its Samsung Autonomous Ship system. Joint research and development activity will focus on real-time decision support, adaptive navigation and continuous performance optimisation, drawing on large-scale operational data from both companies.
Orca AI’s fully automated SeaPod watchkeeper unit uses computer vision, with both day and thermal cameras, to provide bridge teams with 360° situational awareness, detecting, tracking and prioritising navigational risks in real time.
Yarden Gross, CEO and co-founder of Orca AI, said the partnership created “a practical path to scaling autonomous capabilities, from newbuild vessels to existing fleets”.
SHI executive vice president Hyun Joe Kim, head of SHI’s Autonomous Ship Research Institute, said autonomous navigation is “a key competitive factor for the future of the shipbuilding industry”.
This article appeared in Insights, TNA May/June 2026
The threat landscape facing modern naval forces has changed rapidly. Cheap, mass-produced uncrewed aerial systems, available in vast numbers and increasingly capable of coordinated attack, have exposed the limitations of conventional air defence. Intercepting a drone costing a few hundred pounds with a missile costing tens of thousands is not a sustainable equation. DragonFire is the UK’s answer to that problem.
Developed through an industry partnership led by MBDA with Leonardo UK and QinetiQ, DragonFire is a Laser Directed Energy Weapon system designed as an integral effector within a layered air defence architecture. The system has entered production and is on track to equip the Royal Navy in 2027, with first installations planned aboard Type 45 destroyers. That timeline reflects both the urgency of the threat and the maturity of the technology.
The system is housed in a modular 20ft ISO container, drawing on the host platform’s own power and cooling rather than requiring independent provision. This makes DragonFire straightforward to integrate on to, and remove from, different platforms.
At its core, DragonFire uses coherent beam-combining technology to focus high-energy laser light on to a target with exceptional precision. The system is nominally rated at 50kW and has been designed to be scalable. Its beam director uses three apertures to search, identify and engage. The first acts like a pair of binoculars, scanning a wide area for threats. A second mid-range aperture examines a located target in greater detail. The third, telescope-like aperture provides ultra-precision targeting, narrowing on to the threat and confirming engagement. The beam is produced by compressing raw electrical power into a laser source, then focusing and stabilising it through advanced hardware and algorithms before directing it precisely on to the target, where the intense light cuts through the structure.
A critical design principle is that raw power output is not the primary measure of efficacy in a laser weapon. What matters is how much of the available power can be concentrated on to the most vulnerable point of a target. DragonFire has been specifically engineered to maximise that focused delivery, ensuring rapid intercept rather than simply generating the highest possible beam energy.
Steering the beam with the required accuracy is technically demanding. Fast-moving mirrors direct the laser, with high-speed cameras and sophisticated image-processing algorithms operating at thousands of frames per second providing continuous feedback. Even tiny mirror adjustments translate into large beam movements at range, and as a target heats and begins to give off smoke and particles, its optical signature changes, compounding the tracking challenge.
Atmospheric turbulence is a further obstacle. DragonFire addresses this by increasing power output to compensate for adverse conditions, and applying real-time wavefront correction, measuring the return signal from the target and calculating adjustments to counteract beam distortion before it reaches the aim point.
The trials programme has been methodical. Initial firings against static targets at the Dstl Porton Down range were demonstrated publicly in October 2022. Low-power tracking trials at the MoD Hebrides Range followed in July 2023, with a high-power shot destroying a moving aerial target in October 2023. A further aerial engagement was conducted in January 2024. The consistency of results prompted the UK government to accelerate the programme and commit a further £316 million, bringing total investment to £416 million.
This article appeared in Technical, TNA May/June 2026.
Safety is not theoretical in maritime operations. The high seas remain an unforgiving environment where systems are routinely pushed to their limits. Heavy fuel oil is well understood, with decades of operational experience behind its safety protocols – yet incidents still occur.
Of the alternative fuels, LNG has matured into a proven marine fuel and one that is firmly back in favour after the IMO paused elements of its Net Zero Framework in October 2025. The regulatory hesitancy was quickly reflected in orderbooks, with LNG re-emerging as a favoured and well-understood bridge towards a lower-carbon future.
The other alternative fuels, however, introduce unfamiliar hazards. Hydrogen’s extremely low ignition energy, ammonia’s acute toxicity and methanol’s combination of flammability and toxicity all demand new layers of engineering scrutiny.
For Dr Thomas Beard, clean shipping service lead and principal marine engineer at BMT, the challenge is both technical and urgent. His doctorate in hydrogen safety, completed years before the current fuel debate intensified, has become newly relevant as shipowners seek to find ways to stay profitable, compliant and safe against a backdrop of regulatory uncertainty.
Designing for an uncertain fuel future
With no single alternative poised to displace heavy fuel oil in the near term, and limited fuel availability weighing on shipowner decisions, designers are increasingly adopting flexible, future-proofed layouts.
“In a design perspective, it’ll be like a space grab,” Beard says. “You allocate space for certain equipment and piping that can be retrofitted once the fuels become more available. Then we don’t have the weight penalty of piping we don’t need.”
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Space pressures are already acute because all leading alternative fuels have lower volumetric energy density than diesel:
• Methanol: ~15MJ/litre
• LNG (methane): ~13MJ/litre
• Ammonia: ~11.5MJ/litre
• Hydrogen: roughly 3-8MJ/litre depending on storage method.
Lower energy density means larger tanks, which in turn affects vessel layout, cargo capacity and stability calculations.
Storage conditions further complicate matters. Methanol is liquid at ambient conditions and can be stored similarly to diesel. LNG requires cryogenic storage at approximately –162°C, hydrogen at around –253°C or at considerable pressure, and ammonia at roughly –35°C under refrigerated conditions. Each demands dedicated tank systems and safety envelopes.
Reclaiming space through smart design
Some of the lost volume can be clawed back through careful naval architecture. Beard notes that cofferdam (air gap) distances for certain fuels can be reduced from traditional 600mm to around 30mm in specific configurations and with suitable technology.
Methanol offers particular flexibility. Because it is water-soluble, tanks do not always require double-hull separation from the ship’s side shell below the waterline.
“It means we can leverage bits of the design to start maximising the space for the additional storage requirements,” Beard explains.
All of these fuels fall under the IMO’s International Code of Safety for Ship Using Gases or Other Low-flashpoint Fuels (IGF Code). That brings extensive mandatory safeguards and existing knowhow to bear for new problems.
Layers of protection
Modern low-flashpoint fuel systems rely on multiple defensive layers, including:
• Double-walled piping
• Nitrogen inerting systems
• Gas detection and alarm networks
• Airlocks and hazardous zoning
• Dedicated mechanical ventilation
• Redundant power supplies.
Redundancy is particularly critical. Safety and firefighting systems must remain operational even during major failures.
“The fuels are either highly toxic, highly flammable, or a mixture,” Beard says. “You have to design accordingly.”
Ammonia: the toxic threat
Ammonia’s primary hazard is toxicity rather than flammability. It is highly hydrophilic, which means it aggressively attacks moist tissue such as eyes, nose and throat. Exposure risks are severe. Concentrations above 0.25% can be fatal within 30 minutes and, unlike with exposure to some other chemicals, there is no cure.
Under normal operating conditions, the risks are manageable. But maritime operations rarely remain normal.
“At sea, normal conditions can quickly flip into a dark and stormy night scenario,” Beard warns. “That’s where redundancy becomes vital.”
Engineers must ensure sufficient backup power to allow crew in hazmat suits to isolate leaks, purge systems with nitrogen and restore safe conditions.
These realities may limit ammonia’s suitability for passenger vessels.
“It might be feasible on a crew transfer vessel where everyone is trained and buckled into their seats,” Beard says. “On a ferry or cruiseship, passengers are untrained and mobile, and that’s a very big challenge.”
Methanol: the double hazard
Methanol presents both flammability and toxicity risks. It can harm through ingestion, skin absorption or inhalation.
Treatment exists – most commonly fomepizole – but Beard notes an unusual secondary remedy: high-strength ethanol, such as vodka or whisky, which competes metabolically with methanol in the body.
Firefighting presents another complication. Methanol flames can be nearly invisible in daylight, requiring alcohol-resistant foam systems and enhanced detection procedures.
Hydrogen: ultra-flammable but with inbuilt safety features
Hydrogen’s minimum ignition energy is about 0.02MJ – low enough that static electricity from clothing can ignite it. Although this is at ~38% concentration, at 10% concentration the ignition energy is similar to methane (LNG). Yet the fuel also has intrinsic safety advantages.
“What I do like about hydrogen is that it has its own inbuilt safety mechanisms,” Beard says. “It’s the most buoyant and diffusive gas on Earth. It wants to rise and spread out.”
Open-deck storage can, therefore, be advantageous. Below-deck storage, however, introduces major ventilation and explosion-proofing requirements.
Blast-proof ducting, hazardous-zone equipment ratings and dense sensor networks become essential. Detection systems typically trigger at around 50% of the lower flammability limit – well before ignition is possible.
LNG: A familiar contender
Compared with the newer fuels, LNG benefits from a more mature safety framework. Engineers are “quietly confident” in handling it and it now has a proven track record as a marine fuel, even if its well-to-wake emissions are less compelling than some of the potential cleaner alternatives.
The human factor
While engineering controls are advancing rapidly, Beard believes crew competence may be the industry’s greatest challenge.
“These fuels are so different that there’s a strong argument for specialism,” he says.
Yet excessive specialisation could restrict seafarer mobility between vessel types – something crews and operators alike are keen to avoid. The uncertainty over which fuels will dominate further complicates planning. Training investment must be balanced against an unclear long-term fuel mix.
A whole-system challenge
Decarbonisation isn’t just about ships. Beard emphasises that vessel design cannot be separated from shoreside infrastructure.
“It’s no good just designing a ship,” he says. “You also need to work out how to fuel it, wherever it goes. It’s a whole ecosystem. Nobody wants stranded assets.”
It’s clear that decarbonisation will test maritime engineering in ways not seen for generations, and safety will remain the ultimate measure of success.
This article appeared in Features, TNA Mar/Apr 2026
While there are more commercially appealing alternative marine fuels available, hydrogen (H2), a highly flammable and odourless gas that in its super-cooled liquid form will propel man’s return to the moon, is possibly the ‘greenest’ to have made significant maritime inroads over the past 12 months.
Landmark vessel announcements, a regulatory breakthrough at the 11th session of the IMO Sub-Committee on Carriage of Cargoes and Containers in London last September, and the first serious infrastructure commitments have combined to give hydrogen the credibility it lacked just two years ago.
Indeed, there are now more than 20 hydrogen ships in operation, with twice that under construction, representing a number of ship-type ‘firsts’. As far as hydrogen is concerned, 2026 is seeing a real surge in ship design and construction.
The clearest sign that the industry is taking H2 more seriously was in April 2025, when Fincantieri and Viking announced the building of a pair of 54,300gt hydrogen-fuelled cruiseships – the world’s first designed with hydrogen to be stored onboard. Viking Libra, set to join the Viking fleet later this year, features a hybrid 6MW propulsion system based around Isotta Fraschini Motori’s proton exchange membrane (PEM) fuel cell technology. The decision to store the fuel onboard as cryogenic liquid hydrogen (LH2) in a bespoke container loaded on to the vessel during port calls is a pragmatic workaround to the absence of any fixed LH2 bunkering infrastructure to speak of.
The shortage of H2 bunkering ports is the main impediment to larger deep-sea vessels getting off the drawing board. But things are changing fast.
In May last year, for instance, the Port of Rotterdam and Oslo-based EDGE Navigation signed a Letter of Intent to develop a large-scale hydrogen network across Europe’s largest port complex. The Norwegian maritime technology company is developing a series of commercial LH2-powered cargo ships, as well as an LH2 tanker that can be used for ship-to-ship bunkering. Rotterdam aims to prepare the port for the arrival of these ships from 2028.
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Come 2050, it is widely anticipated that global demand for hydrogen will hit 60 million tonnes, fuelling 19% of the world fleet. To this end, Kawasaki Heavy Industries (KHI) and Japan Suiso Energy (JSE) announced at the beginning of this year plans to build a 40,000m3 liquefied hydrogen carrier, the world’s largest, under the New Energy and Industrial Technology Development Organization (NEDO) Green Innovation Fund Project. JSE plans to use the new LHC to demonstrate the ship-to-base loading/unloading under ocean-going conditions by 2023.
The vessel, slated for a building slot at KHI’s Sakaide Works, will join KHI’s 2021-built 1,250m3 capacity Suiso Frontier in taking LH2 cargoes at the Hy touch Kobe LH2 demonstration terminal.
Interestingly, the new vessel’s cargo tanks will use a high-performance insulation system designed to reduce the generation of boil-off gas (BOG) caused by natural heat ingress from the outside, enabling the much larger volume of cryogenic liquid hydrogen to be transported. A heat exchanger will also be installed to allow the BOG to be used for propulsive power. Together with the vessel’s hull form and draught, combined with the low density of liquefied hydrogen, the vessel will have a higher propulsion efficiency for less power, resulting in zero emissions. KHI believes the new vessel will provide the foundation for the future hydrogen supply chain.
Other large commercial ship hydrogen newbuild developments include a pair of 85m bulk carriers for Norwegian shipowner GMI Rederi. Each of these 4,000dwt bulkers will adopt seven PowerCell Marine System 225 units to deliver 3MW of zero-emissions power. When launched in early 2027, the vessels could be the world’s first hydrogen-powered bulk carriers.
Meanwhile, Samskip’s SeaShuttle project represents one of the most ambitious leaps in the maritime industry’s hydrogen surge. Two 135m container ships, currently under construction at Cochin Shipyard in India, are being designed to establish a “green corridor” between Rotterdam and Oslo.
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Each vessel is equipped with a massive 3.2MW hydrogen fuel cell system, a significant scale-up from earlier pilot projects, with liquid hydrogen supplied by Norwegian Hydrogen’s Rjukan plant. These ships have a hatch coverless design, which speeds up port operations, and “autonomous-ready” technology, aiming for remote-controlled efficiency. The first of these vessels is expected to be delivered late in 2026, with full commercial operations beginning in Q2 2027.
While these are some of the larger H2 AMF projects under development, existing smaller-scale projects are providing more immediate operational evidence for the fuel’s wider maritime potential.
One example is the operational data from the 75-passenger hydrogen-fuelled ferry Sea Change, which entered service in San Francisco Bay in July 2024. A study, published in 2025 in the International Journal of Hydrogen Energy, found that its 360kW PEM fuel cells and 246kg of hydrogen (stored at 250 bar) delivered stable and reliable power under real-world duty cycles, achieving an average electrical efficiency of approximately 45-46%.
However, the paper also noted that delivered hydrogen costs averaged approximately US$30/kg during operations, roughly 10 times the cost of diesel, although this increase represents only a 20% hike in total annual operating costs given hydrogen’s higher efficiency. You get more combustion bang for your buck.
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Norway’s 3,400gt, 82m-long Hydra, the world’s first LH2-powered car and passenger ferry (in service since 2023), is also providing the shipping world with evidence that liquid hydrogen will play an important role in the green maritime transition. Although not as informative as the Sea Change study, 2024 reports from Ballard Power Systems – the fuel cell manufacturer – noted that Hydra has made more than 20,000 crossings, establishing efficient bunkering turnarounds.
However, Hydra has since been eclipsed in scale by Torghatten Nord’s two new 117m hydrogen ferries, Røst and Moskenes, ordered for the Bodø–Lofoten route. These LR-classed double-enders, scheduled for delivery from Myklebust Verft later this year, bring hydrogen fuel cell technology firmly into the size range of conventional long-distance ro-pax tonnage, reducing annual CO₂ emissions on the Vestfjord route by some 26,500tonnes.
Hydrogen for the route will be supplied by GreenH, which is building a bunkering facility at Langstranda, near Bodø, with an eventual output of up to 10tonnes of hydrogen per day. The facility, the first of its kind in Northern Europe, will be the first functioning value chain for hydrogen as a maritime fuel in Norway. And once the first phase is complete later this year, compressed green hydrogen will be delivered directly from the production plant to the vessels via a dedicated pipeline, eliminating the high costs and logistical complexities of road transport. The system utilises a “cascade bunkering” method involving pressure transfer, achieving a minimum transfer speed of 1,700kg/h, allowing full daily refuelling in about three hours.
Australian shipbuilder Incat Crowther and Switch Maritime in the US have announced a project to design and build a hydrogen-fuelled fast ferry for New York City.
The Big Apple’s first ever hydrogen-fuelled ferry, the 28.5m vessel has capacity to ferry 150 passengers at cruising speeds of 25knots. Featuring four H2 tanks capable of storing 720kg of compressed hydrogen, the vessel’s 16 98kW fuel cells will provide power to four Danfoss EM-PMI540-T3000 electric motors, which will in turn drive the catamaran’s twin propellers and other consumers.
Incat Crowther and Switch previously partnered on the design, delivery and regulatory approval for Sea Change – the world’s first zero-emissions hydrogen fuel cell-powered electric passenger ferry. Incat Crowther’s technical manager, Dan Mace, said the design showcases a feasible solution for mass transit operators looking to begin the fleet decarbonisation process, while maintaining existing operational profiles.
“The vessel’s ability to drop in to existing fleets is a real positive step to reduce emissions and ensures the vessel can be deployed quickly without the need for constructing additional shoreside infrastructure,” he said.
The project team plans to launch a ZEF-150 demonstration vessel at the Brooklyn Navy Yard.
These articles appeared in In depth, TNA Mar/Apr 2026
Nominate a colleague, a mentee or a friend for one of our prestiguous Naval Architecture Awards. Chosen by our Committees, the winners will be announced at our Annual Dinner attended by more than 300 maritime professionals, industry leaders and academics. Taking place on 28th May, this will be an evening of celebration at the historic De Vere Grand Connaught Rooms in London.
Nominations deadline: on 31st December. Award categories include Innovation, Safety and Diversity.