Glossary

Maritime glossary, terms beginning with T (page 8)

All maritime glossary terms that begin with the letter T, drawn from every subject section. 2313 entries.

Showing 250 of 2313 terms (page 8 of 10).

Trawl X10. Marine Biology, Fisheries and Oceanography: Towed conical net used in midwater or on the bottom.
Trawl Door X87. Fishing Vessels and Fisheries Management: Otter board that shears outward to spread the trawl mouth horizontally.
Trawl Hauler X87. Fishing Vessels and Fisheries Management: Hydraulic device used to retrieve the warps and net on a trawler.
Trawl Net X87. Fishing Vessels and Fisheries Management: Funnel shaped net towed through the water by one or more vessels.
Trawl Sonar X87. Fishing Vessels and Fisheries Management: Acoustic sensor providing live data on trawl geometry and catch entry.
Trawl Survey D4. Fisheries, aquaculture, blue economy and marine resources: Scientific bottom or pelagic trawl survey for abundance estimation.
Traxens X70. Reefer Containers and Cold Chain Shipping: France-headquartered provider of smart container telematics including reefer monitoring.
Treasure X81. Project Cargo, Heavy-Lift and Module Carriers: Boskalis semi-submersible heavy-transport vessel.
Treasure Island F2. Maritime Culture, Heritage, Archaeology, Art and Museums: 1883 novel by Robert Louis Stevenson.
Treasure Voyages F1. Maritime History: Ming dynasty fleets under Zheng He, 1405 to 1433.
Treasury Determination X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A formal pricing or scope decision by the U.S. Treasury under an EO, used to set and update the price-cap levels.
Treatment Rated Capacity (TRC) X18. Ballast Water, Biofouling and Antifouling: Maximum continuous flow rate at which a BWMS is type approved.
Treaty Reinsurance X4. Marine Insurance, P&I and Claims: reinsurance covering classes of business under a single contract.
Tree Cap X14. Offshore Oil and Gas Marine Operations: Cap protecting subsea tree during suspended periods.
Trefoil Symbol X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: The radiation hazard symbol (three blades around a central circle) on Class 7 labels.
Trelleborg X85. Ferries, Ro-Pax Operators and Routes: Swedish Baltic port hosting Stena Line, TT-Line, and Finnlines services to Travemunde, Rostock, Sassnitz, and Swinoujscie.
Trelleborg AB X94. Port Machinery and Quay Equipment Makers: Swedish marine engineering group supplying fenders, bollards, quick-release hooks, and docking aids.
Trelleborg Marine X15. Ports, Terminals and Stevedoring: supplier of fenders, QRH, and mooring monitoring.
Trelleborg Marine and Infrastructure X79. Tugs and Towage Industry: Swedish marine systems supplier producing fenders and mooring equipment.
Trelleborg MoorMaster X169. Container Terminal Cranes, Yard Equipment, and Lashing: Trelleborg-branded vacuum mooring system that secures vessels by suction without conventional mooring lines, following the transfer of the Cavotec MoorMaster product line.
Trelleborg QRH 100 X94. Port Machinery and Quay Equipment Makers: Trelleborg quick-release hook with 100-tonne safe working load.
Trelleborg QRH 150 X94. Port Machinery and Quay Equipment Makers: Trelleborg quick-release hook with 150-tonne safe working load.
Trelleborg QRH 250 X94. Port Machinery and Quay Equipment Makers: Trelleborg quick-release hook with 250-tonne safe working load.
Trelleborg QRH 300 X94. Port Machinery and Quay Equipment Makers: Trelleborg quick-release hook with 300-tonne safe working load.
Trelleborg SafePilot X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: See SafePilot, the leading European PPU product.
Trelleborg SmartDock X94. Port Machinery and Quay Equipment Makers: Trelleborg-branded laser docking and berthing aid system for tanker and container berths.
Trelleborg SmartHook X169. Container Terminal Cranes, Yard Equipment, and Lashing: Trelleborg quick release mooring hook with integrated load monitoring and remote release.
Trelleborg Super M X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Trelleborg cone fender series used at container and tanker berths.
Trench D2. Hydrography, tides, waves, bathymetry and marine geology: Deep linear depression at a subduction zone.
Trenching X105. Offshore Wind Farm Installation and Vessels: Process of burying subsea cables using ploughs, jet trenchers, or mechanical cutters to a target depth typically 1 to 3 m below seabed.
Trend graph X19. Engine Room Watchkeeping and UMS Operations: Time history plot of any tagged parameter on the ECMS.
Trent 30 (Rolls-Royce) B2. Marine Engineering: Marine aero-derivative gas turbine (legacy).
Tres Hombres X128. Sail Training Ships and Tall Ship Associations: Dutch two masted brigantine built 2007 from a 1943 hull, 32 m length, engineless sail freighter under Fairtransport, occasional sail training berths.
Trestle X175. Port Engineering, Dredging, Breakwaters, and Quays: Piled bridging structure that connects shore to an offshore jetty head.
Treuhandgesellschaft X49. Ship Finance, Leasing and Maritime Capital Markets: German trust company holding limited partnership interests in KG funds.
Tri-Axle Chassis X83. ISO Container Manufacturing and Leasing: Chassis with three axles for higher payload, common for heavy tank or out-of-gauge loads.
Tri-fuel engine X56. LNG/LPG Carriers and IGC Code: Engine able to consume natural gas, marine diesel oil, and heavy fuel oil; the basis of TFDE propulsion.
Triage tags X36. Shipboard Medical, Telemedicine and Seafarer Health: Color-coded tags for mass-casualty triage on passenger ships.
Trial Run X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Sea trial or workshop test verifying engine performance, vibration, and emissions before delivery or after major overhaul.
Trial trip B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Builder's sea trial.
Trial Trip Witness X5. Marine Surveying and Inspection: Surveyor attendance at builder's trial voyage.
Trial, builders X58. Shipbuilding Yards and Construction: Sea trial run by the yard with its own crew before official acceptance.
Triangular Trade F1. Maritime History: Three-leg Atlantic trade pattern linking Europe, Africa, and the Americas.
Triangulation C3. Logistics, freight forwarding and multimodal trade: Empty container repositioning optimisation.
Triangulation Voyage X135. Chemical Tanker Operators and IBC Code Cargoes: Three-leg chemical-tanker voyage combining outbound, repositioning and return cargoes to maximize stainless utilization, typified by Stolt and Odfjell Atlantic services.
Triaxial Accelerometer X96. Hull Integrity Monitoring and Strain Gauges: Accelerometer measuring linear acceleration along three orthogonal axes within a single housing.
Tribar X175. Port Engineering, Dredging, Breakwaters, and Quays: Three-legged concrete armour unit developed in the United States in the 1950s for rubble mound breakwater armouring.
Tribology X61. Marine Lubricants and Cylinder Oils: Science of friction, wear, and lubrication relevant to all marine machinery design.
Tribon Hull X54. Naval Architecture Software and IACS Rules: Hull design module within Tribon M3, predecessor to the AVEVA Hull module.
Tribon M3 X54. Naval Architecture Software and IACS Rules: Legacy shipbuilding CAD suite from Kockums Computer Systems, foundation of AVEVA Marine.
Tribon Outfit X54. Naval Architecture Software and IACS Rules: Outfit design module within Tribon M3, predecessor to AVEVA Outfitting.
Tribunal X114. Maritime Arbitration and Shipping Law Firms: Body of one or more arbitrators rendering the award.
Tribunal Secretary X51. Maritime Arbitration, Law and BIMCO Clauses: An administrative assistant appointed to support an arbitral tribunal, subject to disclosure and party agreement.
Tribunal's discretion X152. Maritime Arbitration and Dispute Resolution: Procedural latitude to design the arbitration within mandatory rules and party agreement.
Tributyltin X45. Marine Paints, Coatings and Antifouling: Organotin biocide formerly used in antifouling paints, banned under the AFS Convention.
Tributyltin (TBT) X18. Ballast Water, Biofouling and Antifouling: Organotin compound banned under the AFS Convention.
Tributyltin Hydride Inventory X50. Ship Recycling, Demolition and Hong Kong Convention: The IHM Part I record of TBT residues on legacy hull coatings.
Trice X3. Ship Handling, Seamanship and Deck Vocabulary: Haul up and lash.
Trichodesmium X10. Marine Biology, Fisheries and Oceanography: Filamentous nitrogen-fixing cyanobacterium of tropical and subtropical seas.
Tricolor X13. Marine Salvage and Wreck Removal: 2002 car carrier sinking in the Channel after collision, dismantled by SMIT and Multraship.
Tricolor casualty (2002) X163. Marine Accident Investigation Agencies and Landmark Inquiries: Norwegian International Ship Register pure car carrier that collided with the Kariba in the Dover Strait on 14 December 2002 and capsized, investigated by Norwegian and Bahamian authorities.
Tricolor, MV X167. Major Salvage Companies, Wreck Removals, and Equipment: Norwegian car carrier sunk after collision in the English Channel on 14 December 2002, cut into nine sections and removed in 2003 to 2004 by Smit and Wijsmuller.
Trident (Trafigura Trident Chartering) X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: Trafigura's chartering arm whose vetting requirements supplement majors' standards.
Trident II D5 X11. Naval Vessels, Warship Systems and Naval Architecture: UGM-133 USN/RN SLBM with up to 12 W76/W88 warheads.
Trident Manor X127. Maritime Security, Anti-Piracy and PMSCs: UK risk consultancy founded 2011 headquartered in Durham, specialising in maritime art and high-value cargo security.
Trident Seafoods Corporation X131. Commercial Fisheries, Trawler Fleets and Seafood Processors: Seattle-based privately held vertically integrated US fishing and processing major.
Tridents (UK) E2. Naval, defence and maritime law enforcement: UK's SSBN strategic deterrent.
Triennial Audit (Paris MoU) X146. Port State Control Regimes, MoUs, and Inspection Systems: The periodic peer review of member authorities' implementation of the MoU.
Trieste X62. Naval Warships and Combat Systems: Italian Navy landing helicopter dock with pennant 553.
Trieste L9890 X106. Naval Surface Combatants: Italian Navy landing helicopter dock commissioned 2024, displacing about 33,000 tons.
Trifleet X110. LNG Bunkering Infrastructure and Vessels: Tank container leasing company offering cryogenic ISO tank containers used in containerized LNG bunkering.
Trihedral pick X124. Dredging Industry and Reclamation Contractors: Cutter tooth geometry for hard rock.
Trilateral Cooperative Arrangement X127. Maritime Security, Anti-Piracy and PMSCs: 2017 agreement among Indonesia, Malaysia and the Philippines for joint Sulu Sea patrols.
Trim B1. Naval Architecture: Difference between forward and aft drafts.
Trim Adjustment X60. Marine Salvage and Wreck Removal: Modification of longitudinal weight distribution to optimize refloating buoyancy.
Trim air X26. Reefer Containers and Cold Chain Logistics: Conditioned air introduced via fresh-air vent for gas management.
Trim and List Correction X20. LNG Operations and Custody Transfer: Software adjustment in CTMS converting measured level to true volume with trim/list angles, drawing on calibrated tables.
Trim and stability booklet B1. Naval Architecture: Document containing loading conditions and stability data.
Trim and stability calculator C2. Ship operations, crewing and technical management: Approved onboard calculator.
Trim Calculation X13. Marine Salvage and Wreck Removal: Naval architectural step to predict refloat draft and bottom clearance.
Trim Correction X5. Marine Surveying and Inspection: Correction applied for vessel trim during draft survey.
Trim moment B1. Naval Architecture: MCT*trim, equivalent moment.
Trim Optimization X54. Naval Architecture Software and IACS Rules: Operational optimization of draft and trim using CFD-derived performance baselines.
Trim Optimization Software E3. Technology, digitalization and smart shipping: Voyage-time tool minimizing fuel via trim.
Trim Pump X63. Marine Auxiliary Machinery and Pumps: Pump used to adjust ballast or fuel trim by transferring fluid between tanks.
Trim Tank X20. LNG Operations and Custody Transfer: Aft ballast tank used to manage trim during loading and discharge.
Trim, Cargo X1. Cargo Science, Commodities and Cargo Care: Distribution of cargo to achieve correct trim and stress.
Trim, launching X58. Shipbuilding Yards and Construction: Hull attitude during launch, controlled by ballast and cradle geometry.
Trim, vessel X76. Stevedoring, Lashing and Cargo Securing: Fore-and-aft inclination, indirectly affecting lashing through acceleration distributions.
Trimaran F4. Recreational Boating, Yachting and Sport: Three-hulled vessel type used in offshore racing.
Trimaran HSC X132. High-Speed Craft, Hydrofoils and Ferry Operators: Three-hulled high-speed craft, commercial examples include Benchijigua Express (Fred Olsen, 2005), Condor Liberation and Molslinjen Express 1.
Trimble X125. Superyacht Industry, Builders and Brokers: Brand of dynamic positioning systems used on some superyachts.
Trimble Galaxy X95. GMDSS Equipment and Survival Craft Communications: Legacy Inmarsat C maritime mobile earth station originally produced by Trimble Navigation.
Trimethylamine Anhydrous X75. IMDG Code, Classes, Packing and Segregation: UN 1083, Class 2.1 flammable gas.
Trimethylamine Solution X93. IBC Code and Chemical Tanker Operations: Aqueous tertiary amine solution assigned UN 1297, carried under the IBC Code with Chapter 15 special requirements.
Trimix X82. Saturation Diving and Offshore Diving Operations: Breathing mix of nitrogen, helium, and oxygen used at shallower mixed-gas depths.
Trimmer X84. Yacht Racing, Regattas and Sailing Governance: A crew member specializing in adjusting a particular sail.
Trimming X47. Marine Fuel Quality and ISO 8217: Adjusting ship's draft and list before bunker survey to allow accurate sounding of all tanks.
Trimming, Bulk X1. Cargo Science, Commodities and Cargo Care: Leveling cargo to fill voids and prevent shifting.
Trincomalee Bunker Service X72. Bunkering Hubs and Bunker Suppliers: Bunker supply at the Port of Trincomalee Sri Lanka by Ceylon Petroleum Corporation.
Trinidad and Tobago Maritime Services Division X98. Ship Registries and Flag States: Flag administration of Trinidad and Tobago.
Trinidad bunker market X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: Heritage Petroleum and National Petroleum Marketing Company supply at Point Lisas anchorage.
Trinitrotoluene X75. IMDG Code, Classes, Packing and Segregation: UN 0209 dry or wetted Class 1.1D.
Trinity House F3. Seafaring Life, Education, Professions and Institutions: General Lighthouse Authority and deep-sea pilotage body, chartered 1514.
Trinity House Channel Pilots X32. Marine Pilotage and Pilot Operations: Deep-sea pilots licensed by Trinity House for the English Channel.
Trinity Yachts X35. Yacht and Superyacht Industry: US superyacht builder formerly in Gulfport, Mississippi, and New Orleans.
Triomphant class X11. Naval Vessels, Warship Systems and Naval Architecture: French Navy SSBN with M51 SLBM.
TrioSubsea X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Subsea cable installation joint venture between trio of operators in northern Europe.
Trip charter C1. Commercial shipping, chartering, economics and finance: Time charter for a single voyage or short trip.
Trip charter broker X71. Shipbrokers and Brokerage Firms: Broker arranging single-laden voyage time charters.
Trip Curve X67. Marine Electrical Systems and Shore Power: Time-current characteristic defining when a breaker or fuse will operate.
Trip lease X6. Container, Intermodal and Trade Codes: Short-term equipment lease for a single voyage or shipment.
Trip report X59. Offshore Wind O&M, CTVs and SOVs: Voyage record documenting weather, transfers, faults, and findings during an O&M sortie.
Trip system X19. Engine Room Watchkeeping and UMS Operations: Independent shutdown circuitry for main engine and auxiliaries.
Trip Time Charter X51. Maritime Arbitration, Law and BIMCO Clauses: A short time charter for a specified voyage, employing time charter machinery for a defined trip.
Trip Time Charter (TCT) X17. Chartering, Shipbroking and Freight Trading: Short time charter for a specific voyage with hire and bunkers regime.
Trip Time Charter Back X29. Ship Sale and Purchase, Management Contracts and Valuation: Short charter granted to sellers post sale, valued in deal terms.
Tripartite Body (MLC) X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Special Tripartite Committee under the ILO governing MLC amendments.
Tripartite-class X77. Naval Mine Warfare and Mine Countermeasures: A joint Belgian-French-Dutch class of GRP-hulled minehunters commissioned from 1984, designated Eridan in France, Aster in Belgium, and Alkmaar in the Netherlands.
Triphenylborane pyridine X45. Marine Paints, Coatings and Antifouling: Antifouling biocide used in some Japanese formulations.
Triphenyltin X165. Marine Coatings, Antifouling, and Hull Husbandry: Organotin biocide banned under the AFS Convention alongside TBT.
Tripile Foundation X105. Offshore Wind Farm Installation and Vessels: Three-pile foundation with a transition piece, used in limited German projects.
Triple E X6. Container, Intermodal and Trade Codes: Maersk class of 18,000+ TEU ULCVs.
Triple Hook QRH X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Quick release hook assembly with three hooks for high mooring loads.
Triple Point Sample X5. Marine Surveying and Inspection: Petroleum sample drawn at upper, middle, and lower depths.
Triple-island barge X166. Inland Waterways, Ferries, RoRo, and Short Sea Shipping: An old British classification rarely used on inland waters today.
Triple-Screw Towboat X103. US Inland Waterway Towing and Barge: A pushboat with three propellers, common in the 6,000 to 9,000 horsepower range.
Triplex X92. Marine Steel Suppliers and Shipbuilding Plate: GTT laminate of thin 316L stainless sheets bonded to aluminum foil used as secondary barrier in membrane LNG containment.
Triplex Moorings X169. Container Terminal Cranes, Yard Equipment, and Lashing: Group of mooring fitting products by Triplex AS of Norway, used on offshore and specialty vessels.
Tripod foundation X42. Offshore Wind Installation and Cable Lay: Three legged steel substructure used at certain North Sea projects including Alpha Ventus.
Tripoli (USS) LHA-7 X106. Naval Surface Combatants: Second America-class amphibious assault ship, commissioned 2020.
Tripping line X3. Ship Handling, Seamanship and Deck Vocabulary: Line attached to the crown of an anchor to free it from foul ground.
Tripping Palm X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Projection on the crown of a stockless anchor that rotates the flukes downward when the anchor is laid on the seabed.
Trireme F1. Maritime History: Ancient Greek three-banked oared warship of the fifth century BCE.
Trireme Trust F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Reconstructed the Olympias trireme replica with Hellenic Navy.
Triton X76. Stevedoring, Lashing and Cargo Securing: US private equity firm that acquired MacGregor from Cargotec in 2024.
Triton (Greek) X128. Sail Training Ships and Tall Ship Associations: Hellenic Navy heritage sailing dinghies, peripheral to Class A sail training operations.
Triton 200 X65. ROVs, AUVs, USVs and Marine Robotics: Triton Submarines or historically Perry Slingsby work-class ROV depending on context; the Forum portfolio includes the Triton XLS work-class line.
Triton Container International X83. ISO Container Manufacturing and Leasing: Former independent container lessor that merged with TAL International in 2016.
Triton International X83. ISO Container Manufacturing and Leasing: World's largest container lessor formed by the 2016 merger of Triton and TAL.
Triton International Reefer X136. Reefer Vessels and Cool Chain Operators: Triton Container International reefer container leasing arm, with global reefer container fleet supplying carriers and BCOs.
Triton Knoll X105. Offshore Wind Farm Installation and Vessels: 857 MW UK offshore wind farm developed by RWE and partners and commissioned in 2021.
Triton Submarines X97. Polar Expedition Cruise and IAATO Operations: US manufacturer of tourist submersibles deployed on luxury expedition ships including Viking, Scenic, and Seabourn vessels.
Triton XLR X65. ROVs, AUVs, USVs and Marine Robotics: Forum Energy Technologies Triton resident work-class ROV.
Triton XLS-225 X65. ROVs, AUVs, USVs and Marine Robotics: Forum Energy Technologies Triton work-class ROV in the 225 horsepower class.
Triton/TRISIS X139. Maritime Cybersecurity, OT Threats and Standards: 2017 malware specifically targeting Schneider Triconex safety instrumented systems, demonstrating capability against safety OT.
Triton/Trisis/HatMan X25. Maritime Cybersecurity, OT and IT: Malware targeting Schneider Electric Triconex safety instrumented systems, first observed at a Saudi petrochemical plant in 2017.
Triumph X81. Project Cargo, Heavy-Lift and Module Carriers: Boskalis semi-submersible heavy-transport vessel.
Trochoid Pump X63. Marine Auxiliary Machinery and Pumps: Positive displacement pump with internal rotor of trochoidal geometry, used for some lube oil duty.
Trochoidal wave theory B1. Naval Architecture: Early wave theory used for hogging/sagging analysis.
Trojan X48. Maritime Cybersecurity: Malware disguised as legitimate software to deceive users into running it.
Trojan Marinex BWMS X113. Drydock and Ship Repair Yards: Filtration plus medium-pressure ultraviolet ballast water treatment system retrofitted under D-2 compliance.
Troll Pipeline X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: System of gas pipelines from the Troll field to Kollsnes onshore processing plant in Norway.
Troll Station X133. Polar Research Vessels and Polar Code Regimes: Norwegian year-round Antarctic station in Queen Maud Land, supports DROMLAN airbridge.
Trolley X15. Ports, Terminals and Stevedoring: STS or RMG trolley carrying the spreader along the boom or trolley girder.
Trolley assist X42. Offshore Wind Installation and Cable Lay: Reference lift planning aid.
Trolley Festoon X169. Container Terminal Cranes, Yard Equipment, and Lashing: Cable management system that supports the trolley power and control cables along the boom and girder.
Trolley Speed X94. Port Machinery and Quay Equipment Makers: Horizontal travel speed of an STS trolley, commonly 240 to 300 m/min on modern machines.
Trollfjord X85. Ferries, Ro-Pax Operators and Routes: Hurtigruten ro-pax built 2002 deployed on the Bergen to Kirkenes coastal route.
Trolling Vessel X87. Fishing Vessels and Fisheries Management: Vessel deploying multiple baited lines for salmon, tuna, or pelagic species along defined tracks.
Tromso X64. Cruise Industry Operators, Brands and Ships: Northern Norwegian port on Arctic itineraries.
Tron 60GPS X95. GMDSS Equipment and Survival Craft Communications: Jotron 406 MHz Cospas-Sarsat EPIRB with internal GPS.
Tron AIS-SART X95. GMDSS Equipment and Survival Craft Communications: Jotron AIS Search and Rescue Transmitter operating on AIS channels 87B and 88B.
Tron TR20 X95. GMDSS Equipment and Survival Craft Communications: Jotron GMDSS two way portable VHF radio in safety yellow.
Tron TR30 X95. GMDSS Equipment and Survival Craft Communications: Jotron GMDSS two way portable VHF radio in safety yellow succeeding the TR20.
Trondheim Fjord X109. Maritime Autonomous Surface Ships and MASS Code: A Norwegian fjord designated as a MASS test area by the Norwegian Maritime Authority.
Trophic Level D4. Fisheries, aquaculture, blue economy and marine resources: Position of an organism in a food web.
Tropic 2 X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Submarine cable system connecting Curacao, Sint Maarten, and Tortola, operated by C&W Networks.
Tropical Cyclone D1. Physical and chemical oceanography and marine meteorology: Warm-core low pressure system originating over tropical oceans.
Tropical Load Line X9. Cargo Securing, Lashing and Stability Vocabulary: Load line for tropical zones per Load Line Convention.
Tropical Provisioning Allowance X120. Marine Catering, Provisions and Ship Chandlers: Higher fresh fruit and water allocation in tropical service per some flag-state MLC implementation circulars.
Tropical Storm Casualty X60. Marine Salvage and Wreck Removal: Casualty arising from tropical cyclone exposure.
Tropical Tuna X87. Fishing Vessels and Fisheries Management: Skipjack, yellowfin, and bigeye managed by ICCAT, IATTC, IOTC, and WCPFC under tropical tuna measures.
Tropicalized coating X45. Marine Paints, Coatings and Antifouling: Coating system formulated for application and service in high-humidity tropical environments.
Tropopause D1. Physical and chemical oceanography and marine meteorology: Boundary between the troposphere and stratosphere.
Tropospheric Scintillation X68. Maritime Satcom and Telecommunications: Rapid signal fluctuations caused by turbulence in the lower atmosphere.
Troubleshooting X19. Engine Room Watchkeeping and UMS Operations: Systematic fault diagnosis using ECMS logs, drawings, and observation.
Trough X9. Cargo Securing, Lashing and Stability Vocabulary: Cradle for cylindrical cargo.
Trout (Frozen) X120. Marine Catering, Provisions and Ship Chandlers: IMPA 551116 IQF whole, premium chandler item.
TRP Cyber Resilience (CCS) X139. Maritime Cybersecurity, OT Threats and Standards: China Classification Society notation for cyber resilience aligned with IACS UR E26.
TRS (Tropical Revolving Storm) X16. Nautical Science, Navigation and COLREGs: Intense low-pressure system originating in tropical latitudes.
Truck X3. Ship Handling, Seamanship and Deck Vocabulary: Top of the mast.
Truck appointment system X15. Ports, Terminals and Stevedoring: TAS, slot booking for trucks, e.g., eModal in US.
Truck Appointment System (TAS) X46. Container Terminal Operations: A web-based or kiosk-based scheduling system that assigns drayage trucks to specific gate windows to reduce queueing.
Truck to Ship Bunkering X72. Bunkering Hubs and Bunker Suppliers: Bunker delivery mode in which one or more road tankers discharge alongside the receiving vessel.
Truck-to-ship (TTS) X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: LNG, methanol, or distillate bunkering from a road tanker.
Truck-to-Ship LNG Bunkering (TTS) X110. LNG Bunkering Infrastructure and Vessels: LNG bunkering mode using one or more cryogenic road tankers connected to the receiving vessel via flexible hoses, typically delivering 30 to 180 m3 per operation.
Trucker appointment system C3. Logistics, freight forwarding and multimodal trade: TAS for terminal gate slots.
Truckers' association X6. Container, Intermodal and Trade Codes: Body representing drayage trucking firms at a port.
True altitude X16. Nautical Science, Navigation and COLREGs: Altitude relative to the celestial horizon.
True bearing B3. Nautical Science: Bearing referenced to true north.
True course B3. Nautical Science: Course referenced to true north.
True heading X16. Nautical Science, Navigation and COLREGs: Heading relative to true north.
True Mass X115. Marine Bunker and Cargo Surveying: Mass in vacuum derived from observed volume and density after applying buoyancy corrections.
True Motion X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Radar display mode where own ship moves across the screen with a fixed reference frame.
True motion display X16. Nautical Science, Navigation and COLREGs: Radar mode in which own ship and targets move relative to a fixed Earth reference.
True north X16. Nautical Science, Navigation and COLREGs: Direction toward the geographic north pole.
True wind X3. Ship Handling, Seamanship and Deck Vocabulary: Actual wind direction and strength independent of the ship's motion.
True Wind Angle (TWA) X84. Yacht Racing, Regattas and Sailing Governance: The angle of the true wind relative to the yacht's heading.
Trumpy X125. Superyacht Industry, Builders and Brokers: Historical American gentleman's yacht builder.
Trunk X82. Saturation Diving and Offshore Diving Operations: Pressurized passage between chambers and the bell.
Trunk Cable X91. Submarines and Submarine Cable Systems: Main cable in a branched submarine cable system between branching units.
Trunk Carrier X68. Maritime Satcom and Telecommunications: High-capacity satellite carrier connecting major hub sites.
Trunk Deck X20. LNG Operations and Custody Transfer: Raised central walkway atop membrane LNG carriers housing liquid and vapor headers and pump tower trunks.
Trunk piston engine X61. Marine Lubricants and Cylinder Oils: Four-stroke engine without a crosshead, where the piston also acts as a crosshead guide, using a single oil for combustion and crankcase duty.
Trunkline Aggregation Pipeline X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Subsea pipeline collecting hydrocarbons from multiple subsea fields and delivering to a central host.
Trust Account X51. Maritime Arbitration, Law and BIMCO Clauses: An account holding funds in escrow pending resolution of disputed payments under a charter.
Trust Boundary X139. Maritime Cybersecurity, OT Threats and Standards: Logical perimeter at which trust assumptions change, mapped to IEC 62443-3-2 zone edges.
Trust Fund A1. The IMO and the international regulatory framework: Voluntary funding mechanism for IMO technical cooperation projects.
Trust Score X109. Maritime Autonomous Surface Ships and MASS Code: An internal metric used to express confidence in an autonomous decision before execution.
Trusted Platform Module X48. Maritime Cybersecurity: Hardware component that supports cryptographic operations and platform integrity measurement.
Trusted Source Routing X68. Maritime Satcom and Telecommunications: SD-WAN feature that selects routes based on policy and source authentication.
Trusted Trader X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A status conferred under EU and UK voluntary attestation schemes for price-cap compliance.
Trustee X81. Project Cargo, Heavy-Lift and Module Carriers: Boskalis semi-submersible heavy-transport vessel.
Trustees (America's Cup) X84. Yacht Racing, Regattas and Sailing Governance: The trustees of the America's Cup Deed of Gift, charged with safeguarding the trophy and its terms.
TS Chanakya X55. Marine Simulators, Training and Maritime Academies: Pre-sea nautical science campus of the Indian Maritime University in Nhava, Navi Mumbai, formerly Training Ship Chanakya.
TSA Maritime Security Directive X25. Maritime Cybersecurity, OT and IT: Anticipated TSA cybersecurity directive for the maritime mode.
TSA Security Directive 1580 X25. Maritime Cybersecurity, OT and IT: US Transportation Security Administration directive on pipeline cybersecurity issued 2021 and revised 2022.
TSA Security Directive 1582 X25. Maritime Cybersecurity, OT and IT: TSA cyber directive for higher risk freight and passenger railroads.
Tsakos Energy Navigation X49. Ship Finance, Leasing and Maritime Capital Markets: NYSE listed tanker owner that has issued preferred stock and senior notes.
Tsavliris Salvage X60. Marine Salvage and Wreck Removal: Greek salvage company based in Athens with worldwide LOF experience.
Tsavliris Salvage Group X157. Marine Loss Adjusters, GA Practice, and Casualty Firms: Greek salvage company based in London and Piraeus active in worldwide ocean salvage for more than five decades.
Tsawwassen X85. Ferries, Ro-Pax Operators and Routes: BC Ferries Vancouver-area terminal serving Swartz Bay and Duke Point on Vancouver Island.
TSB Canada Marine reports X163. Marine Accident Investigation Agencies and Landmark Inquiries: Marine investigation reports issued by the Transportation Safety Board of Canada under the format M-YY-PNNNN.
TSBC X12. Maritime Casualties and Investigation: Transportation Safety Board of Canada, marine investigator under the Canadian Transportation Accident Investigation and Safety Board Act 1989.
TSDF (Treatment, Storage and Disposal Facility) X118. Ship Recycling Yards, Beaches and Regulation: Off-site licensed facility receiving hazardous waste streams from yards; in India, includes GEPIL Surat and TSDF Ankleshwar.
TSHD X15. Ports, Terminals and Stevedoring: Trailing Suction Hopper Dredger, examples include Jan De Nul Cristobal Colon, Boskalis Helios.
TSIB X12. Maritime Casualties and Investigation: Transport Safety Investigation Bureau of Singapore, established 2016 under the Ministry of Transport.
TSIB (Transport Safety Investigation Bureau, Singapore) X163. Marine Accident Investigation Agencies and Landmark Inquiries: See Singapore Transport Safety Investigation Bureau.
Tsing Yi Repair Cluster X113. Drydock and Ship Repair Yards: Hong Kong ship repair concentration including Hong Kong United Dockyards and Yiu Lian Dockyards.
TSPP Conference 1978 X158. IMO Conventions, Protocols, Codes, and Resolutions: International Conference on Tanker Safety and Pollution Prevention that produced the 1978 SOLAS and MARPOL Protocols.
TSS Inshore Traffic Zone B3. Nautical Science: Restricted-use zone landward of separation line.
Tsu Shipyard X113. Drydock and Ship Repair Yards: Japan Marine United yard at Tsu, Mie Prefecture, building bulkers and special vessels.
Tsubasa Soft TOS X169. Container Terminal Cranes, Yard Equipment, and Lashing: Japanese terminal operating system used at several Japanese container terminals.
Tsunameter D5. Coastal processes, sea-level, cryosphere and ocean observation science: Bottom pressure sensor in the DART system.
Tsunami D2. Hydrography, tides, waves, bathymetry and marine geology: Long period gravity wave generated by seafloor displacement.
Tsunami Buoy D5. Coastal processes, sea-level, cryosphere and ocean observation science: Surface buoy relaying DART data.
Tsuneishi Cebu X58. Shipbuilding Yards and Construction: Tsuneishi Heavy Industries Cebu yard in the Philippines.
Tsuneishi Cenex X113. Drydock and Ship Repair Yards: Tsuneishi-affiliated yard at Anchieta, Espírito Santo, Brazil, historically active in bulker construction.
Tsuneishi Heavy Industries X58. Shipbuilding Yards and Construction: Japanese shipbuilder with yards at Hiroshima, Cebu, and Zhoushan.
Tsuneishi Shipbuilding X29. Ship Sale and Purchase, Management Contracts and Valuation: Japanese yard at Fukuyama, bulk carrier specialist.
Tsuneishi Zhoushan X58. Shipbuilding Yards and Construction: Tsuneishi group yard in Zhejiang province, China.
Tsuneishi-MAN X90. Marine Engine Specific Model Enumeration: Tsuneishi Shipbuilding affiliated production stream of licensed MAN B&W two-stroke marine engines.
Tsushima 1905 X11. Naval Vessels, Warship Systems and Naval Architecture: Naval battle won by Admiral Togo's IJN against Russian Baltic Fleet.
TT (truck-to-ship) bunkering X149. Marine Fuels, Bunkering, and Alternative Fuels: LNG or methanol delivery from a road tanker to the ship at berth.
TT Club X53. Marine Insurance, P&I and Hull Clauses: Through Transport Mutual Insurance Association, a mutual insurer for transport operators including terminals and freight forwarders, outside the IG.
TT-Line X132. High-Speed Craft, Hydrofoils and Ferry Operators: German-Swedish operator on Travemunde, Rostock to Trelleborg.
TTS (terminal-to-ship) bunkering X149. Marine Fuels, Bunkering, and Alternative Fuels: A pipeline transfer from an LNG/methanol terminal directly to the ship via a quay manifold (sometimes used interchangeably with PTS).
TtW (Tank-to-Wake) X34. Decarbonization, Alternative Fuels and Carbon Pricing: Emissions from fuel consumption on board the ship.
TTX X127. Maritime Security, Anti-Piracy and PMSCs: Tabletop exercise, common training format used by JMIC, MSCHOA and IMB to test reporting procedures.