Glossary

Maritime glossary, terms beginning with Y (page 2)

All maritime glossary terms that begin with the letter Y, drawn from every subject section. 425 entries.

Showing 175 of 425 terms (page 2 of 2).

Yawata X124. Dredging Industry and Reclamation Contractors: Penta-Ocean TSHD.
Yawing X9. Cargo Securing, Lashing and Stability Vocabulary: Rotational motion about vertical axis; minor contributor to lashing forces.
Yawing moment X175. Port Engineering, Dredging, Breakwaters, and Quays: Horizontal moment about a vessel's vertical axis caused by bank effects, wind, and current in a constrained channel.
Yawl F1. Maritime History: Two-masted fore-and-aft rigged vessel with small mizzen aft of the rudder post.
Yawmeter B3. Nautical Science: Sensor measuring yaw rate, integrated with autopilot.
Year (sidereal) X16. Nautical Science, Navigation and COLREGs: 365.2564 days; one orbit of Earth relative to stars.
Year (tropical) X16. Nautical Science, Navigation and COLREGs: 365.2422 days; one cycle of the seasons.
Year Class D4. Fisheries, aquaculture, blue economy and marine resources: Cohort of fish born in the same year.
Year Contract (CAL) X161. Shipbroking, Freight Derivatives, and Baltic Indices: Calendar-year FFA strip covering January through December settlement, a core liquidity point on the dry and wet forward curve.
Year end report X59. Offshore Wind O&M, CTVs and SOVs: Annual document summarizing production, availability, faults, and findings for the wind farm owner.
Year of build X7. Flag State, Port State Control and Detention Vocabulary: Date used for age-based PSC targeting and convention applicability thresholds.
Year of Build Effect X28. Ship Recycling and End-of-Life: Vessel age influencing presence of legacy materials such as asbestos and PCBs in the IHM.
Year of Detention X146. Port State Control Regimes, MoUs, and Inspection Systems: The calendar year in which a detention occurred, used for performance list calculations.
Year of mandatory implementation (2010) X163. Marine Accident Investigation Agencies and Landmark Inquiries: 1 January 2010, the date on which the Casualty Investigation Code became mandatory through SOLAS XI-1/6.
Year of the Seafarer X119. Maritime Conferences, Trade Shows and Awards: 2010 IMO theme year that established the Day of the Seafarer.
Year One Cyber Audit X48. Maritime Cybersecurity: Common practice of conducting a focused cyber audit during the first year of vessel operation.
Year Strip X44. Shipping Indices, FFAs and Freight Markets: Position consisting of all twelve months of a calendar year for a given FFA route, used by owners and operators for annual hedging.
Year-on-year casualty trend X12. Maritime Casualties and Investigation: EMSA and IMO annual statistics aggregated from EMCIP and GISIS submissions.
Year-On-Year Tightening X112. IMO GHG Strategy, CII, EEXI and EU Maritime Regulation: FuelEU Maritime and CII design feature progressively lowering the allowed greenhouse gas intensity and operational AER through 2050.
Year-on-Year Wellbeing Tracking X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Quarterly Mission to Seafarers Happiness Index practice of comparing rolling sentiment scores.
Year-to-Year Variability D5. Coastal processes, sea-level, cryosphere and ocean observation science: Interannual variability captured by observation networks.
Yearly Survey X8. IACS, Class Rules and Class Notations: colloquial term for the Annual Survey.
Yearly TMSA Review Cycle X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: The operator-internal cadence for revisiting TMSA element scores and improvement plans.
Yeast (Active Dry) X120. Marine Catering, Provisions and Ship Chandlers: IMPA 550509 instant dry yeast, 500 g vacuum pack, bakery store.
Yellow Cake (Uranium Ore Concentrate) X1. Cargo Science, Commodities and Cargo Care: Class 7 radioactive; drummed bulk under INF Code.
Yellow Card X36. Shipboard Medical, Telemedicine and Seafarer Health: Common name for the WHO ICVP vaccination certificate.
Yellow fever vaccine X36. Shipboard Medical, Telemedicine and Seafarer Health: Live attenuated vaccine; certificate valid for life per 2016 WHO update.
Yellow Flag F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Q quarantine flag flown to request pratique.
Yellow H X31. Helicopter Operations on Ships: Painted helideck identification marking at deck center, 4 m high, 0.75 m stroke.
Yellow Label (Class 7) X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Yellow upper half on Categories II-YELLOW and III-YELLOW Class 7 labels indicating measurable surface radiation level.
Yellow paint X42. Offshore Wind Installation and Cable Lay: High visibility coating applied to the splash zone of monopiles and transition pieces for navigational safety.
Yellow paint zone X165. Marine Coatings, Antifouling, and Hull Husbandry: Informal term for the painted bulwark and topside band coordinated with shipping company brand colors.
Yellow Phosphorus X1. Cargo Science, Commodities and Cargo Care: Class 4.2 spontaneously combustible.
Yellow Q flag X36. Shipboard Medical, Telemedicine and Seafarer Health: International Code of Signals flag indicating vessel requests free pratique.
Yellow River X124. Dredging Industry and Reclamation Contractors: Inland CCCC dredging.
Yellow River (Huang He) X166. Inland Waterways, Ferries, RoRo, and Short Sea Shipping: The second-longest river in China, used only for limited local navigation owing to extreme silt loads and seasonal flow.
Yellow River Salvage X167. Major Salvage Companies, Wreck Removals, and Equipment: Chinese inland salvage operator referenced in domestic wreck cases.
Yellow Sea X10. Marine Biology, Fisheries and Oceanography: Marginal sea between mainland China and the Korean Peninsula.
Yellow Sea Cable Cluster X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Concentration of submarine cables in the Yellow Sea between China and the Korean Peninsula.
Yellow Sea Cold Water Mass D5. Coastal processes, sea-level, cryosphere and ocean observation science: Subsurface cold water mass in the Yellow Sea.
Yellow Special Mark X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: All-yellow IALA buoy or beacon used for non-navigational purposes (cables, spoil, ODAS, military).
Yellow-Flag Alert X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: An industry shorthand for an interim sanctions screening hit pending full investigation, not a formal regulatory category.
Yellowfin sole X10. Marine Biology, Fisheries and Oceanography: *Limanda aspera*, important North Pacific flatfish.
Yellowfin Sole (Limanda aspera) X131. Commercial Fisheries, Trawler Fleets and Seafood Processors: Bering Sea flatfish, second-largest US groundfish fishery by volume after pollock.
Yellowfin tuna X10. Marine Biology, Fisheries and Oceanography: *Thunnus albacares*, widespread tropical and subtropical tuna.
Yellowfin Tuna (Thunnus albacares) X131. Commercial Fisheries, Trawler Fleets and Seafood Processors: Tropical tuna, with the Indian Ocean stock subject to IOTC Resolution 23/02 catch limit reductions.
Yellowfin tuna carriage X26. Reefer Containers and Cold Chain Logistics: Sashimi-grade at -60 C; non-sashimi typically -18 to -25 C.
Yellowing X45. Marine Paints, Coatings and Antifouling: Discoloration of light-colored topcoats due to UV or chemical exposure, particularly of aromatic isocyanate systems.
Yemen Coast Guard X127. Maritime Security, Anti-Piracy and PMSCs: Pre-2014 partner; effectively replaced by Houthi-controlled forces in western and northern Yemeni waters.
Yemen PSC X66. Port State Control and Regional MOUs: Indian Ocean MOU member State.
Yenisei X52. Polar Code, Arctic and Antarctic Shipping: Russian river debouching into the Kara Sea at Dikson, with ice-class navigation up to Dudinka.
Yenisei River X27. Polar Code, Ice Navigation and Polar Operations: Russian Arctic river; Dudinka port served by Arc7 container vessels in winter.
Yeosu X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: South Korean refining complex with GS Caltex tankage supplying bunker barges along the south coast.
Yeosu Pilots X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: KMPA branch handling tankers and bulkers at the southern Korean ports of Yeosu and Gwangyang.
Yeu-Noirmoutier X57. Ocean Energy Beyond Wind: Coastal site in France where Lhyfe operates an offshore hydrogen production pilot connected to the Floatgen platform.
Yichang Marine Diesel (YCMP) X90. Marine Engine Specific Model Enumeration: Chinese builder under CSSC licensed to produce MAN B&W two-stroke marine engines.
Yield D4. Fisheries, aquaculture, blue economy and marine resources: Catch in weight or numbers from a fishery.
Yield assessment (wave) X57. Ocean Energy Beyond Wind: Estimation of annual energy production from a wave farm based on device matrix and resource scatter plot.
Yield buckling check B1. Naval Architecture: Combined yield and buckling assessment of plating.
Yield Criterion X54. Naval Architecture Software and IACS Rules: Von Mises or Tresca criterion used for plastic strength checks in Abaqus and Ansys.
Yield Loss (Refining) D6. Decarbonization, emissions and alternative fuels: Fuel-quality consideration for ULSFO production.
Yield Management (capacity) X68. Maritime Satcom and Telecommunications: Operator practice of pricing satellite capacity to maximize utilization across customer segments.
Yield per Recruit D3. Marine environmental science, pollution and conservation: Fishery model output relevant to bycatch and conservation analyses.
Yield Strength (Steel Cargo) X1. Cargo Science, Commodities and Cargo Care: Material property relevant to plate and rebar handling.
Yield Strength Sling X104. Project Cargo Forwarders and Heavy Transport: Yield level of sling material relevant to engineering of heavy lifts.
Yield to Maturity X49. Ship Finance, Leasing and Maritime Capital Markets: Internal rate of return on a bond held to its scheduled maturity.
Yield to Owner X44. Shipping Indices, FFAs and Freight Markets: Concept describing the projected dollar-per-day earnings of a vessel under prevailing FFA-implied rates net of operating costs.
Yield-per-recruit (YPR) X10. Marine Biology, Fisheries and Oceanography: Expected lifetime yield from a recruit as a function of fishing mortality and selectivity.
Yilport Holding X46. Container Terminal Operations: The Turkish container terminal operating arm of the Yildirim Group, with terminals in Europe, the Americas, and Asia.
Yinson Holdings X81. Project Cargo, Heavy-Lift and Module Carriers: Kuala Lumpur-listed FPSO operator, parent of Floating Production Solutions.
Yiu Lian Dockyards X113. Drydock and Ship Repair Yards: Hong Kong ship repair operator with three drydocks at Tsing Yi serving Asian and global owners.
YJ-12 X11. Naval Vessels, Warship Systems and Naval Architecture: PLAN supersonic anti-ship cruise missile.
YJ-18 X11. Naval Vessels, Warship Systems and Naval Architecture: PLAN subsonic-supersonic anti-ship/land-attack cruise missile.
YJ-83 X11. Naval Vessels, Warship Systems and Naval Architecture: PLAN turbojet anti-ship missile derived from C-802.
YMCA Seamen's Service X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Historic US welfare provision to seafarers, descendant of the Seamen's House YMCA in New York.
Ymer X52. Polar Code, Arctic and Antarctic Shipping: Swedish state icebreaker built in 1977, of the Atle class.
Yo-Yo CTD X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Repeated up-and-down CTD profiling at a station, used to characterize sound velocity variability during multibeam survey.
YOC, Young Officer of the Watch F3. Seafaring Life, Education, Professions and Institutions: Initial OOW endorsement.
YOCCMA (Yokohama Zone Cable Maintenance Agreement) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Cable maintenance consortium operating dedicated repair cableships in the Northwest Pacific.
Yogurt X120. Marine Catering, Provisions and Ship Chandlers: IMPA 551014 plain yogurt, 1 kg tub, chiller store.
Yoke X3. Ship Handling, Seamanship and Deck Vocabulary: Crosspiece on the rudder head of a small boat steered by lines.
Yoke (CPP hub) X38. Propellers, Stern Gear and Shaft Lines: Sliding yoke (crosshead) inside the CPP hub converting piston axial motion into blade pin rotation.
Yoke Mooring X14. Offshore Oil and Gas Marine Operations: Rigid arm between FSO/FPSO and fixed tower mooring.
Yoke Mooring System X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Rigid yoke linking a fixed mooring tower to an FSO or FPSO, used widely in benign shallow water fields.
Yokogawa CENTUM X107. Maritime Cybersecurity and OT Security: Distributed control system from Yokogawa used in process and some marine applications.
Yokogawa CMZ900 X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Yokogawa Denshikiki autopilot family widely fitted on Japanese-built commercial vessels.
Yokogawa CMZ900D X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Yokogawa fluid-suspended gyrocompass variant in the CMZ900 family with digital interface.
Yokogawa Denshikiki X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Japanese maker of marine gyrocompasses, autopilots, and steering control systems based in Tokyo.
Yokogawa RotaMass X110. LNG Bunkering Infrastructure and Vessels: Coriolis mass flow meter series used for LNG custody transfer measurement.
Yokohama X122. Submarine Cable Laying, Repair Vessels and Operators: Sumitomo Electric submarine cable plant site since 1936, producing modern fiber cable for NEC system orders.
Yokohama Fender F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Pneumatic ship-to-ship transfer fender developed by Yokohama Rubber.
Yokohama Fender Inspection X5. Marine Surveying and Inspection: Examination of pneumatic fenders for STS operations.
Yokohama Fenders X86. Port Agency, Husbandry and Disbursement: Pneumatic fenders commonly used in STS operations.
Yokohama Kawasaki International Port Co X138. Global Container Terminal Operators and Port Equipment: YKIP, joint port operator for Yokohama and Kawasaki ports established 2016.
Yokohama LNG Bunkering X110. LNG Bunkering Infrastructure and Vessels: LNG bunker operations at the Port of Yokohama, Japan.
Yokohama Magari Works X113. Drydock and Ship Repair Yards: Japan Marine United Yokohama site historically active in tanker and special vessel construction and repair.
Yokohama Manufacturers Material Declarations X50. Ship Recycling, Demolition and Hong Kong Convention: Builder-issued documents from Japanese manufacturers used in IHM Part I compilation.
Yokohama Maritime Museum F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Includes Nippon Maru sail training ship.
Yokohama MRCC X80. Maritime Search and Rescue Coordination: MRCC operated by the Japan Coast Guard at Yokohama.
Yokohama National University Marine Engineering X121. Maritime Education, Academies and Universities: Yokohama, Japan, with marine systems and energy research.
Yokohama Osanbashi Pier X164. Cruise Industry, Brands, Ship Classes, and Terminals: The historic Yokohama international passenger terminal at Osanbashi opened in 1894 and rebuilt in 2002.
Yokohama Pilot Boarding Ground X86. Port Agency, Husbandry and Disbursement: Pilot boarding area off the port of Yokohama.
Yokohama Pilots X32. Marine Pilotage and Pilot Operations: Japanese pilots' association covering Tokyo Bay and Yokohama.
Yokohama Pneumatic Fender X30. Tug Operations and Harbour Towage: Inflatable pneumatic fender used as ship-to-ship and tug-to-ship cushion.
Yokohama Pneumatic Fenders X137. Harbour Tugs, Towage Operators and Tug Builders: Standard ship-shape fender used between harbour tugs and ship hulls.
Yokohama Port X15. Ports, Terminals and Stevedoring: example Japanese hub port with MC-1/MC-2 terminals.
Yokohama Provisioning X120. Marine Catering, Provisions and Ship Chandlers: Major Japanese hub served by SSAJ members for fresh and frozen provisions.
Yokohama Reefer X136. Reefer Vessels and Cool Chain Operators: Reefer container handling at Yokohama with around 1,000 reefer plugs, serving Japan's protein and produce imports.
Yokohama Rubber X94. Port Machinery and Quay Equipment Makers: Japanese maker of pneumatic rubber fenders used for ship-to-ship and ship-to-quay applications.
Yokohama Sea Cadet Corps F3. Seafaring Life, Education, Professions and Institutions: Japanese youth maritime program.
Yokohama Specie Bank F1. Maritime History: Late nineteenth century financier of Japanese shipping.
Yokohama Steering Gear X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Japanese hydraulic ram steering gear historically supplied to coastal and ocean-going tonnage.
Yola (Khersones) X128. Sail Training Ships and Tall Ship Associations: Russian language references to Khersones occasionally use transliteration variants; see Khersones.
Yoldia Sea D2. Hydrography, tides, waves, bathymetry and marine geology: Late glacial proto-Baltic Sea phase, important in paleo-sea level reconstructions.
Yon-Spotted Light F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Generic reference to multi-character flashing aid.
Yong Sheng X124. Dredging Industry and Reclamation Contractors: CCCC TSHD.
York Antwerp Rules Verification X155. Marine Surveying Practice and Cargo Inspection: The surveyor's role in establishing facts relevant to a general average adjustment under the York Antwerp Rules.
York Cable Landing X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Reference UK East coast landing for North Sea export cables.
York Factory X39. Pre-1900 Maritime History: Hudson's Bay Company depot at the mouth of the Hayes River established in 1684.
York Mariners' Guild F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Medieval English maritime guild.
York River X124. Dredging Industry and Reclamation Contractors: USACE dredging area.
York-Antwerp Rules A5. Maritime Law, private and commercial: CMI-drafted rules for adjustment of general average; current editions 1994, 2004, 2016.
York-Antwerp Rules 1974 X99. Marine Salvage Awards and SCOPIC: General average rules promulgated by the Comite Maritime International, relevant to salvage contributions.
York-Antwerp Rules 1994 X51. Maritime Arbitration, Law and BIMCO Clauses: The 1994 revision of the rules for adjustment of general average.
York-Antwerp Rules 2004 X51. Maritime Arbitration, Law and BIMCO Clauses: The CMI revision of the YAR limiting allowances in respect of salvage and crew wages.
York-Antwerp Rules 2016 X51. Maritime Arbitration, Law and BIMCO Clauses: The current CMI revision of the York-Antwerp Rules restoring salvage and other allowances.
York-Antwerp Rules disputes X152. Maritime Arbitration and Dispute Resolution: Disputes over general average adjustments under YAR 1994, 2004, or 2016; rare but possible references to arbitration where parties so agree.
Yorkshire Mariners' Charity F3. Seafaring Life, Education, Professions and Institutions: UK seafarer welfare body.
Yorktown Naval Campaign F1. Maritime History: French and American blockade of 1781.
Yoshida Jet D1. Physical and chemical oceanography and marine meteorology: Equatorial jet driven by zonal winds, relevant to Indian Ocean dynamics.
Yotta Bytes Maritime Data F3. Seafaring Life, Education, Professions and Institutions: Reference to digital workforce skills.
Young Brothers X132. High-Speed Craft, Hydrofoils and Ferry Operators: Hawaii inter-island operator, freight focused, not HSC.
Young Endeavour (STS) X128. Sail Training Ships and Tall Ship Associations: Australian Royal Australian Navy two masted brigantine built 1987 at Brooke Yachts Lowestoft, 44 m length, 728 sq m sail area, gift of the UK to Australia for the 1988 Bicentenary, operated by Young…
Young Endeavour Heritage Voyages F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Australian sail training brigantine.
Young ice X27. Polar Code, Ice Navigation and Polar Operations: Sea ice in the transition stage from nilas to first-year ice, 10 to 30 cm thick; includes grey and grey-white.
Young International Council for Commercial Arbitration X114. Maritime Arbitration and Shipping Law Firms: Networking body whose maritime sub-group convenes regularly.
Young Mariners' Programs F3. Seafaring Life, Education, Professions and Institutions: Sea Scouts and Sea Cadets.
Young Ocean Basin D2. Hydrography, tides, waves, bathymetry and marine geology: Recently formed basin with thin sediment cover.
Young of the Year D3. Marine environmental science, pollution and conservation: First-year fish cohort, important to recruitment monitoring.
Young Persons Provisions X158. IMO Conventions, Protocols, Codes, and Resolutions: STCW Code Section A-I/14 controls on minimum age and training of young seafarers serving on certificated ships.
Young seafarer X21. STCW Certificates, Crewing and Seafarer Welfare: Person under 18, with additional protections under MLC Regulation 1.1 including night work and hazardous duties.
Young Seafarers' Welfare X102. Seafarer Welfare and Maritime Charities: Focus of ITF Seafarers' Trust and Sailors' Society programs addressing the needs of cadets and junior crew.
Young Ship International Conference X119. Maritime Conferences, Trade Shows and Awards: Annual young maritime professionals event launched 2002.
Young's modulus X162. Naval Architecture, Stability, Resistance, and Structural Design: Elastic constant E for hull plating; for normal-strength steel grade A, E equals approximately 206 GPa.
Young's Modulus Cable Testing X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Mechanical test parameter for submarine cable design verification.
Younger Dryas D1. Physical and chemical oceanography and marine meteorology: Past abrupt cooling event linked to changes in North Atlantic circulation.
Younger Edda Maritime References F1. Maritime History: Norse literary record of seafaring.
Youth Sail Training Association of Western Australia X128. Sail Training Ships and Tall Ship Associations: Operator of Leeuwin II; see STAWA.
YP460 X92. Marine Steel Suppliers and Shipbuilding Plate: Yield point designation for hull steel with minimum 460 MPa yield used in ULCS structural members.
YP47 X92. Marine Steel Suppliers and Shipbuilding Plate: Common shorthand for EH47 class hull steel with minimum 460 MPa yield used in ULCS hatch coamings.
YPF Marine X72. Bunkering Hubs and Bunker Suppliers: Argentine marine fuels arm of YPF supplying bunkers at Buenos Aires, La Plata, and Bahia Blanca.
YPF Stockpile X126. Marine Oil Spill Response and OPRC Regimes: Argentinian state oil cooperative stockpile at Comodoro Rivadavia.
YPF Vetting X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: Argentina's integrated oil company vetting function for crude and product movements through Comodoro Rivadavia, La Plata, and Bahia Blanca.
YPI (Yachting Partners International) X156. Superyacht Industry, Builders, and Yacht Charter Market: Monaco and London based brokerage offering yacht sales, charter, and new construction services.
YPR (Yield per Recruit) D4. Fisheries, aquaculture, blue economy and marine resources: Yield obtained from each individual entering the fishery.
YPR Fender X94. Port Machinery and Quay Equipment Makers: Yokohama Pneumatic Rubber fender produced to ISO 17357.
YPS Pump X167. Major Salvage Companies, Wreck Removals, and Equipment: Salvage rated submersible pump used for compartment dewatering during refloat.
YS (yield strength) marking B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Plate identification of yield grade.
YS Yachts X125. Superyacht Industry, Builders and Brokers: Smaller specialist builder.
YSI EXO X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Multi-parameter water quality sonde from Xylem-YSI used in environmental work adjacent to hydrographic survey.
Ystad X85. Ferries, Ro-Pax Operators and Routes: Swedish Skane Baltic port hosting Bornholmslinjen, Polferries, and Unity Line services to Bornholm and Swinoujscie.
YT Vessel Category X97. Polar Expedition Cruise and IAATO Operations: IAATO category for yachts, typically smaller member vessels with limited passenger capacity.
YT122 X169. Container Terminal Cranes, Yard Equipment, and Lashing: Terberg yard tractor model widely used in North American and European terminals.
Yuan class X11. Naval Vessels, Warship Systems and Naval Architecture: PLAN Type 039A AIP submarine with Stirling engine.
Yuan Shipowners Association F3. Seafaring Life, Education, Professions and Institutions: Generic example of national association.
Yugoslav Adriatic Trade F1. Maritime History: Twentieth-century Adriatic coastal commerce.
Yunlin X42. Offshore Wind Installation and Cable Lay: Taiwanese offshore wind farm in the Strait of Taiwan developed by wpd and Sojitz.
Yunlin Offshore Wind Farm X105. Offshore Wind Farm Installation and Vessels: 640 MW Taiwanese offshore wind farm developed by wpd off Yunlin County.
Yusen Logistics X104. Project Cargo Forwarders and Heavy Transport: Tokyo-based logistics subsidiary of NYK Line with project and contract logistics divisions.
Yusen Logistics Tugs X137. Harbour Tugs, Towage Operators and Tug Builders: NYK group affiliate operating harbour tugs at Japanese terminals.
Yusuhara Folk Sailing Tradition F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Japanese coastal heritage.
Yuyo Maru No. 10 X126. Marine Oil Spill Response and OPRC Regimes: 1974 Tokyo Bay collision of LPG/naphtha tanker with the freighter Pacific Ares, source of revised Japanese spill response.
Yuzhao-class LPD X106. Naval Surface Combatants: NATO reporting name for the People's Liberation Army Navy Type 071 amphibious transport dock.
Yuzhno-Kamchatsk Cable Branch X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Russian Far East branch of regional submarine cable infrastructure to Kamchatka.
Yvon Le Corre Marine Art F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Modern French marine watercolorist.