A transformative patented hull form delivering 25% reduced fuel consumption — integrating the structural advantages of a monohull with the stability of a catamaran. Five years of independent research. One patent. Two operational vessels.
Revolutionary Invention
Y-Hull® is a hybrid hull form that intelligently combines the best characteristics of two established hull types — creating something entirely new and patented.
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Y-Hull® substantially reduces bow-induced waves, lowering hydrodynamic resistance as the ship moves forward through water.
Technical analysis, along with practically proven data from operational vessels, demonstrates significantly less resistance compared to traditional monohulls and catamarans — directly translating to a 25% reduction in fuel consumption compared to a similar monohull.
The unique Y-Hull® shape automatically allows air to flow underneath the hull from bow to stern. This natural air layer between the hull and water surface reduces frictional resistance — a passive, maintenance-free efficiency gain with no additional systems required.
Integrates the structural and economic advantages of a monohull with the stability and speed of a catamaran in a more efficient way — addressing a long-standing compromise in naval architecture.
Y-Hull® directly addresses GHG challenges in maritime engineering, supporting IMO targets for net-zero emissions from international shipping.
Supported by a peer-reviewed RINA 2019 conference paper and backed by five years of independent research (2014–2019) by the sole inventor and patent holder.
The Journey
The Y-Hull® represents five years of dedicated independent research, progressing from concept through rigorous CFD testing to a granted patent and two operational vessels.
Phase 1: Conceptual Hypothesis
Independent research initiated by Amitavo C Wye — identifying inefficiencies in existing hull forms and conceptualising the Y-Hull® solution.
Phase 2: Computational Modelling & Geometry Definition
Extensive preliminary design work undertaken to define the Y-Hull® geometry. Multiple hull form variants explored and evaluated analytically.
Phase 3: Hydrodynamic Analysis & Resistance Assessment
Hydrodynamic analysis of the Y-hull® was done using software packages. Wave resistance prediction using Michell integral and Savitsky methods applied to the novel geometry.
Phase 4: Practical Design Development & Design Validation
Full naval architecture design package was prepared suitable for vessel construction. Development of lines plans, general arrangements, structural design, and construction drawings for the first Y-hull® passenger vessel.
Phase 5: Full-Scale Construction
MV Jamuna the world's first Y-Hull® commercial passenger vessel is built and deployed on an operational inland waterway route. Sea trials and performance monitoring commence, providing the first real-world validation of the CFD predictions. Operational fuel consumption data collected and compared against the conventional monohull MV Padma operating on the same route.
Phase 6: Full-scale sea-trial validation
Sea trials and performance monitoring commence, providing the first real-world validation of the CFD predictions. Operational fuel consumption data collected and compared against the conventional monohull MV Padma with same specification operating on the same route.
Phase 7: Filing of Patent & Peer-Reviewed Publication
Singapore IPOS Patent filed. Peer-reviewed paper presented at RINA 2019 International Conference.
Phase 8: Operational Validation & Second Vessel
A second Y-Hull® vessel is designed and built, further validating the design across different vessel configurations. Commercial interest from regional shipowners grows significantly.
Phase 9: Continuous performance monitoring of two Y-hull® vessels
Both Y-Hull® vessels' performance was monitored and tracked, with detailed fuel consumption report. Further validation of the design across different vessel configurations was studied.
Partnership with EcoNavis Solutions Ltd., Glasgow, UK
A partnership is formed to commercialise the Y-Hull® in EU and UK.
Key Credentials
The inventor Amitavo C Wye, FRINA is a chartered naval architect with significant international recognition.
Credentials
Hull Form
The defining feature of the Y-Hull® is its unique cross-sectional profile — twin forward demi-hulls that gradually merge into a single stern hull with single-shaft propulsion. This geometry creates the natural air channel that gives Y-Hull® its exceptional efficiency advantage.
Designed, analysed and validated across a comprehensive CFD simulation programme using Simcenter STAR-CCM+, covering multiple Froude numbers and displacement conditions.
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Explore Further
Full CFD results, design overview, and operational performance data from deployed Y-Hull® vessels.
View on y-hull.com →From concept in 2014 through patent grant in 2019 to commercial deployment — the full Y-Hull® journey.
View Timeline →Explore Y-Hull® licensing for new build or retrofit. Commercial terms for qualified shipowners and shipyards.
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