Comparing monohull and catamaran fishing vessel designs, researchers evaluated resistance, displacement, and hydrodynamic performance across multiple hull forms. Catamarans consistently delivered lower resistance, with asymmetric configurations performing best. However, efficiency gains came with reduced displacement, highlighting critical trade-offs between carrying capacity, fuel economy, and operational effectiveness at sea today globally.

Redesigning a Ro-Ro ferry ramp door using higher-strength ST52 steel delivered meaningful structural and operational benefits. The lighter configuration reduced weight, enabled smaller lifting-system requirements, extended estimated service life, and improved electro-hydraulic winch efficiency. The findings demonstrate how material selection can enhance performance, durability, and energy efficiency simultaneously overseas today.

A new VENRA framework aims to transform shipyard performance assessment by integrating value engineering and risk evaluation across technical business external and safety dimensions Using fuzzy DEMATEL and TOPSIS methods the approach combines quantitative operational data with expert judgement to support more balanced transparent strategic decision making across maritime enterprises.

Validated CFD modelling confirms FINETM/Marine’s capability to predict high-speed vessel resistance across demanding operating regimes. Comparing simulations with empirical methods and experimental data, researchers demonstrated strong agreement while revealing evolving wave patterns at increasing Froude numbers. The results strengthen confidence in computational tools for efficient high-speed craft design today globally.

An innovative passive radar reflector inspired by traditional fishing-vessel ornamentation could improve maritime safety without compromising cultural identity. Testing showed that a fiberglass-reinforced casing shaped like a mosque dome had minimal impact on radar performance. The concept offers a route to increasing vessel detectability and reducing collision risks at sea.

New insights into shallow-water manoeuvring are improving predictions of ship handling performance. Using URANS simulations of horizontal planar motion tests, researchers quantified how hydrodynamic derivatives change with water depth and developed a new regression model. The findings support more accurate navigation, design, and safety assessments for vessels operating near coastlines.

Ocean Thermal Energy Conversion projects depend heavily on selecting suitable supporting structures to achieve technical and economic viability. This review examines structural concepts, loading conditions, and critical failure areas across existing studies, highlighting knowledge gaps and guiding future design standards for resilient, efficient, scalable offshore renewable energy infrastructure worldwide today.

Linear Engine Generators could offer a flexible route to maritime decarbonisation. Fuelled by ammonia or hydrogen, the technology combines simple mechanical architecture with adaptability to multiple energy sources. Simulation-led sensitivity studies and prototype development demonstrate potential for efficient electric propulsion, supporting lower-emission shipping and offshore energy operations globally today ahead.

Solar-assisted fishing boats offer a practical pathway to reducing fuel dependence and operating costs for small-scale fisheries. Integrating photovoltaic panels, onboard power systems, radar, AIS, and emergency backup generation, the concept enhances safety and efficiency while cutting diesel consumption. The design highlights renewable energy’s growing role in sustainable maritime livelihoods.

Ferrocement patrol vessels could offer a cost-effective solution to maritime security capability gaps. Using Design for Six Sigma methods, researchers developed a concept vessel tailored to Indonesian Coast Guard requirements for Natuna Sea operations. The approach highlights affordable construction, material accessibility, and sustainable fleet expansion supporting law enforcement objectives effectively.

Optimising Ro-Ro ferry service speed requires balancing energy efficiency with seakeeping performance. Combining resistance modelling, CFD analysis, and motion assessments, researchers identified operational trade-offs affecting propulsion requirements and vessel behaviour. The approach provides practical guidance for selecting speeds that reduce energy demand while maintaining safety, comfort, and reliability at sea.

LNG-fuelled vessels can unlock additional efficiency by recovering both engine waste heat and cryogenic energy. Using regenerative Organic Rankine Cycle and direct-expansion technologies, researchers identified high-performing working fluids and quantified efficiency gains. The results reveal significant decarbonisation potential while highlighting safety-related trade-offs associated with fire-retardant refrigerant mixtures today at sea.