Glossary

Maritime glossary, terms beginning with L (page 8)

All maritime glossary terms that begin with the letter L, drawn from every subject section. 1899 entries.

Showing 149 of 1899 terms (page 8 of 8).

LR Escort 2 X137. Harbour Tugs, Towage Operators and Tug Builders: Lloyd's Register's higher escort notation requiring more stringent escort performance demonstration.
LR ESP X8. IACS, Class Rules and Class Notations: LR notation for ships entered under the Enhanced Survey Programme.
LR FOBAS X112. IMO GHG Strategy, CII, EEXI and EU Maritime Regulation: Lloyd's Register Fuel Oil Bunker Analysis Service.
LR Foundation Training Grants F3. Seafaring Life, Education, Professions and Institutions: Heritage of Lloyd's Register Foundation funding.
LR Fuel Tracker D6. Decarbonization, emissions and alternative fuels: Lloyd's Register tool monitoring alternative-fuel ship orders.
LR Guidance Notes for Cyber Security X148. Maritime Cybersecurity, IACS Cyber Rules, and Incidents: The Lloyd's Register procedure ShipRight CSR-CR set, encompassing accept, secure, and perform tiers.
LR HMS X96. Hull Integrity Monitoring and Strain Gauges: Lloyd's Register hull monitoring system class notation designation.
LR IBS X8. IACS, Class Rules and Class Notations: Integrated Bridge System notation.
LR Ice Class 1AS X133. Polar Research Vessels and Polar Code Regimes: Lloyd's Register's Finnish-Swedish equivalent ice notation.
LR IWS X8. IACS, Class Rules and Class Notations: LR In-Water Survey notation.
LR LMC X8. IACS, Class Rules and Class Notations: LR Machinery Class.
LR LNG Bunkering Notation X110. LNG Bunkering Infrastructure and Vessels: Lloyd's Register class notation for vessels arranged for LNG bunkering operations.
LR PC X133. Polar Research Vessels and Polar Code Regimes: Lloyd's Register Polar Class notations PC1 through PC7 mirroring IACS UR I2.
LR Rules for Special Service Craft (SSC) X35. Yacht and Superyacht Industry: Lloyd's Register rule set covering high-speed and special craft, including yachts.
LR ShipRight X8. IACS, Class Rules and Class Notations: LR's direct calculation and design assessment procedures.
LR ShipRight CyberSAFE X48. Maritime Cybersecurity: Lloyd's Register ShipRight procedure addressing cyber security capability for ships and offshore units.
LR Type II X135. Chemical Tanker Operators and IBC Code Cargoes: Lloyd's Register IMO Type 2 chemical tanker class notation.
LR UMS X8. IACS, Class Rules and Class Notations: LR Unattended Machinery Space notation.
LR Yacht Notation E4. Cruise, offshore energy and auxiliary/specialised fleets: Lloyd's Register large-yacht class notations.
LR1 X161. Shipbroking, Freight Derivatives, and Baltic Indices: Long Range 1 product tanker of roughly 55,000 to 80,000 dwt, the reference vessel for clean route TC5 and TC8.
LR1, LR2 X15. Ports, Terminals and Stevedoring: long range product tanker classes.
LR1/LR2 tanker B5. Ship Types and Individual Vessels: Long-range product tanker, ~75k/115k DWT.
LR2 X161. Shipbroking, Freight Derivatives, and Baltic Indices: Long Range 2 product tanker of roughly 80,000 to 120,000 dwt, the reference vessel for clean routes TC1 and TC20.
LRAD X22. Piracy, Maritime Security and Armed Protection: Long Range Acoustic Device used to project warnings at high directional volume.
LRASM X62. Naval Warships and Combat Systems: Long Range Anti-Ship Missile, a stealthy air- and ship-launched anti-ship weapon based on the JASSM-ER.
LRIT X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: Long-Range Identification and Tracking, required by SOLAS V/19-1 since 31 December 2008.
LRIT ASP X74. AIS Data, Vessel Tracking and Maritime Intelligence: Application Service Provider role within the LRIT architecture.
LRIT Conformance Test Report X89. ECDIS and Bridge Equipment Makers: Certificate issued by a designated test ASP confirming that a shipborne LRIT equipment meets the required performance.
LRIT Conformance Test Report (CTR) E1. Maritime security, geopolitics and risk: Document confirming shipboard equipment conformance.
LRIT Cooperative Data Centre X74. AIS Data, Vessel Tracking and Maritime Intelligence: LRIT facility shared by multiple participating flag states.
LRIT CSP X74. AIS Data, Vessel Tracking and Maritime Intelligence: Communication Service Provider that carries LRIT signals between ship and Data Centre.
LRIT Data Centre X74. AIS Data, Vessel Tracking and Maritime Intelligence: Repository that collects and forwards LRIT position reports for one or more flag administrations.
LRIT Data Centre (DC) E1. Maritime security, geopolitics and risk: National/regional/cooperative center receiving LRIT messages.
LRIT Data Distribution Plan X74. AIS Data, Vessel Tracking and Maritime Intelligence: IMO-maintained schedule defining which states may receive LRIT data from which ships.
LRIT Data User X74. AIS Data, Vessel Tracking and Maritime Intelligence: Government entity authorized under the IMO framework to request LRIT data.
LRIT familiarization X21. STCW Certificates, Crewing and Seafarer Welfare: Awareness of Long Range Identification and Tracking, complementary to GMDSS training.
LRIT International Data Centre X74. AIS Data, Vessel Tracking and Maritime Intelligence: Backup LRIT facility maintained for states not joining a regional or cooperative centre.
LRIT Long Range Identification and Tracking X25. Maritime Cybersecurity, OT and IT: SOLAS V/19-1 mandatory long range tracking system.
LRIT National Data Centre X74. AIS Data, Vessel Tracking and Maritime Intelligence: LRIT Data Centre operated by a single flag administration.
LRIT Regional Data Centre X74. AIS Data, Vessel Tracking and Maritime Intelligence: LRIT facility serving a group of flag states in one region.
LRR (Long Range Reporting) X148. Maritime Cybersecurity, IACS Cyber Rules, and Incidents: A category of telemetry whose integrity depends on satcom terminal security.
LRS X7. Flag State, Port State Control and Detention Vocabulary: Low Risk Ship.
LRSL (Liberian Registry investigation of MS Explorer) X163. Marine Accident Investigation Agencies and Landmark Inquiries: Liberian flag State investigation into the loss of the cruise ship MS Explorer in Antarctic waters on 23 November 2007.
LS Cable & System X91. Submarines and Submarine Cable Systems: Korean cable manufacturer producing submarine power cables.
LS-DYNA X54. Naval Architecture Software and IACS Rules: Explicit dynamics finite element solver from Ansys used for ship collision and grounding studies.
LSA X75. IMDG Code, Classes, Packing and Segregation: See Low Specific Activity.
LSA Code A2. Maritime safety legislation: SOLAS and its codes: International Life-Saving Appliance Code, mandatory under SOLAS III/34.
LSA Code (resolution MSC.48(66)) X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary: Detailed performance and testing requirements for all life-saving appliances referenced in SOLAS Chapter III.
LSD X11. Naval Vessels, Warship Systems and Naval Architecture: Landing Ship Dock, USN Whidbey Island and Harpers Ferry.
LSFO X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Low Sulphur Fuel Oil, generic term for residuals at or below 1.00% m/m sulphur.
LSFO (Low Sulfur Fuel Oil) X34. Decarbonization, Alternative Fuels and Carbon Pricing: 0.50% sulfur compliant residual fuel; similar GHG intensity to HFO.
LSFO (Low Sulphur Fuel Oil) X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: A fuel oil with sulphur content below the global cap of 0.50 percent m/m, required from 1 January 2020 under MARPOL Annex VI Reg 14.
LSFO Bunker Stem X86. Port Agency, Husbandry and Disbursement: Stem of low sulfur fuel oil arranged by the agent.
LSMGO X149. Marine Fuels, Bunkering, and Alternative Fuels: Low-sulfur marine gas oil, a distillate marine fuel with sulfur content of 0.10% m/m or below, used in ECAs and EU ports.
LSMGO (Low Sulfur Marine Gas Oil) X34. Decarbonization, Alternative Fuels and Carbon Pricing: Distillate marine fuel commonly used inside ECAs.
LSS X82. Saturation Diving and Offshore Diving Operations: Life Support Supervisor.
LSSA Clauses X157. Marine Loss Adjusters, GA Practice, and Casualty Firms: Lloyd's Standard Salvage and Arbitration Clauses governing LOF arbitral procedure.
LST X11. Naval Vessels, Warship Systems and Naval Architecture: Landing Ship Tank, retired USN designation.
LSW 1331 X127. Maritime Security, Anti-Piracy and PMSCs: Lloyd's Standard Wording 1331, hull war risks clause forming the basis of war-risks cover for transits through listed areas.
LT cooling X19. Engine Room Watchkeeping and UMS Operations: Low temperature freshwater circuit cooling lube oil, charge air, and auxiliaries.
LTI C3. Logistics, freight forwarding and multimodal trade: Lost time injury, KPI in logistics safety.
LTSA X59. Offshore Wind O&M, CTVs and SOVs: See long term service agreement.
Luanda X124. Dredging Industry and Reclamation Contractors: Angolan capital port maintained by Jan De Nul.
Luanda Code of Conduct X127. Maritime Security, Anti-Piracy and PMSCs: Concept floated under ECCAS framework but largely subsumed into the Yaounde Architecture.
Lubber line B3. Nautical Science: Reference line on compass aligned with ship's head.
Lube oil bottom tank X19. Engine Room Watchkeeping and UMS Operations: Reservoir below crankcase storing engine sump oil, with level and temperature sensors.
Lube Oil Centrifuge X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Alfa Laval or Mitsubishi separator removing water, sludge, and particulates from main engine system oil and fuel oil.
Lube oil drip sample X19. Engine Room Watchkeeping and UMS Operations: Periodic engine bottom oil sample sent ashore for analysis.
Lube Oil Inventory X50. Ship Recycling, Demolition and Hong Kong Convention: The Part II declaration of main engine, auxiliary engine, and gear oil residues at delivery.
Lube Oil Pump X63. Marine Auxiliary Machinery and Pumps: Pump circulating lubricating oil from the sump to the engine bearings and cooling system.
Lube oil purifier X19. Engine Room Watchkeeping and UMS Operations: Centrifugal separator removing water and solids from system oil.
Lube Oil Recovery X28. Ship Recycling and End-of-Life: Recovery of crankcase and gear lubricants for reuse or disposal.
Lubeck X39. Pre-1900 Maritime History: North German Hanseatic port, the league's effective capital from the thirteenth to the sixteenth century.
Lubmar X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: Marine lubricant brand sometimes bunkered alongside fuel by integrated suppliers.
Lubricant (Food Grade) X41. Cruise Ship Public Health and VSP/USPH: H1 lubricant approved for incidental food contact on galley machinery.
Lubricant analysis X59. Offshore Wind O&M, CTVs and SOVs: Laboratory testing of oil and grease samples for wear metals, water content, and additive depletion.
Lubricants (Galley Equipment) X120. Marine Catering, Provisions and Ship Chandlers: Food grade NSF H1 lubricants required for moving parts in food contact equipment.
Lubricants ROB X29. Ship Sale and Purchase, Management Contracts and Valuation: Lube oil remaining on board, valued separately at delivery.
Lubricating Oil X1. Cargo Science, Commodities and Cargo Care: Carried in product/chemical tankers in dedicated tanks.
Lubricating Oil Sample X5. Marine Surveying and Inspection: Sampling for laboratory analysis during machinery surveys.
Lubrication oil unit (stern tube) X38. Propellers, Stern Gear and Shaft Lines: Header-tank or pump unit maintaining stern-tube oil pressure above sea pressure at the aft seal.
Lubrication regime X61. Marine Lubricants and Cylinder Oils: Operating state of a tribological contact, classified as boundary, mixed, or hydrodynamic.
Lubrication, launchway X58. Shipbuilding Yards and Construction: Tallow or modern launch lubricant applied to launchways before a dynamic launch.
Lubricator X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Mechanical or electronic device feeding cylinder oil through quills into the liner.
Lubricator (cylinder) B2. Marine Engineering: Electronic lubricator dosing cylinder oil to liners.
Lubricity X47. Marine Fuel Quality and ISO 8217: Capacity of a fuel to reduce friction in close-tolerance metal pairs, measured by ISO 12156-1 high frequency reciprocating rig.
Luerssen X77. Naval Mine Warfare and Mine Countermeasures: A German shipbuilder that constructed Frankenthal-class minehunters.
Luff X3. Ship Handling, Seamanship and Deck Vocabulary: Forward edge of a fore-and-aft sail; head a vessel into the wind.
Luff tackle X3. Ship Handling, Seamanship and Deck Vocabulary: Single block and double block tackle giving a three-to-one purchase.
Luffing X84. Yacht Racing, Regattas and Sailing Governance: Steering closer to the wind, often as a defensive tactic.
Lufkin Gear X90. Marine Engine Specific Model Enumeration: American manufacturer of high-power marine reduction gearboxes used in commercial propulsion drivetrains.
Lufkin marine gear X38. Propellers, Stern Gear and Shaft Lines: Lufkin Industries (now RBI Bearings/Siemens) reduction gears used in some U.S. vessels.
Lufthansa Industry Solutions X104. Project Cargo Forwarders and Heavy Transport: Group entity providing logistics IT and engineering, often referenced alongside Hellmann.
Lug sail X3. Ship Handling, Seamanship and Deck Vocabulary: Four-sided fore-and-aft sail set on a yard slung obliquely.
Lugger X39. Pre-1900 Maritime History: A small fore-and-aft rigged vessel using lug sails, common in Channel coastal trade and smuggling.
Lugworm X10. Marine Biology, Fisheries and Oceanography: Polychaete *Arenicola marina* of intertidal sandflats.
Luhansk People's Republic X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A non-government-controlled region of Ukraine subject to EU and U.S. embargo measures.
Lukoil Bunker X72. Bunkering Hubs and Bunker Suppliers: Russian bunker subsidiary of Lukoil active at St Petersburg, Kaliningrad, Murmansk, and Novorossiysk prior to 2022 EU sanctions.
Lukoil Marine Lubricants X61. Marine Lubricants and Cylinder Oils: Marine lubricant supplier within the Lukoil group, with the Navigo and Meta range.
Lukoil Marine Vetting X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: The Russian integrated oil major's marine vetting function screening tankers for Baltic, Black Sea, and FSU loadings.
Lukoil Navigo MCL 4070 X61. Marine Lubricants and Cylinder Oils: Lukoil 70 BN cylinder oil for two-stroke crosshead engines on intermediate sulfur fuels.
Lukoil Navigo TPEO 5050 X61. Marine Lubricants and Cylinder Oils: Lukoil 50 BN trunk piston engine oil for four-stroke medium-speed engines.
Lukoil Navigo TPEO 55 BN 100 X61. Marine Lubricants and Cylinder Oils: Lukoil trunk piston engine oil with 55 BN designed for four-stroke engines on higher sulfur fuels.
Lulea X92. Marine Steel Suppliers and Shipbuilding Plate: SSAB integrated steelmaking site in northern Sweden producing slab for downstream rolling.
Lumb (Tusk) X87. Fishing Vessels and Fisheries Management: Brosme brosme, a demersal species taken as bycatch in Northeast Atlantic longline and gillnet fisheries.
Lump Sum Award X60. Marine Salvage and Wreck Removal: Salvage reward stated as a fixed amount rather than a percentage of values.
Lump Sum Charter X108. Marine Insurance and P&I Clubs: A charter where freight is payable as a single sum, treated as a separate insurable interest in marine policies.
Lump Sum Contract X113. Drydock and Ship Repair Yards: Repair contract in which the yard agrees to complete a defined workscope for a fixed total price.
Lump sum freight dispute X152. Maritime Arbitration and Dispute Resolution: Common voyage charter dispute referred to maritime arbitration over deductions or non-performance.
Lump sum turnkey X42. Offshore Wind Installation and Cable Lay: Contracting structure transferring scope risk to the EPCI contractor at a fixed price.
Lump Sum Wreckhire X141. Marine Salvage Industry and Wreck Removal Contractors: Wreckfixed 2010 variant where salvor accepts fixed price for entire wreck removal.
Lumpfish (Cyclopterus lumpus) X131. Commercial Fisheries, Trawler Fleets and Seafood Processors: Cleaner fish farmed at over 30 million per year for sea lice control in salmon farms.
Luna Rossa X84. Yacht Racing, Regattas and Sailing Governance: Italian syndicate, backed by Prada, that was the challenger of record at AC36 in Auckland 2021.
Lunar Day D2. Hydrography, tides, waves, bathymetry and marine geology: 24.84-hour period of Earth rotation relative to the Moon.
Lunar distance X16. Nautical Science, Navigation and COLREGs: Angle between the Moon and another body, historic time-determination method.
Lung Mei Limited X50. Ship Recycling, Demolition and Hong Kong Convention: A cash buyer historically active in the demolition market, listed in various industry references.
Lunitidal interval X16. Nautical Science, Navigation and COLREGs: Time between the Moon's transit and the following high water.
Lurssen X11. Naval Vessels, Warship Systems and Naval Architecture: German shipbuilder, FAC and corvettes for export.
Lurssen Bunker Procurement X72. Bunkering Hubs and Bunker Suppliers: Bunker procurement desk of Lurssen Werft for delivery and trials fuel on newbuild yachts.
Lusitania F1. Maritime History: Cunard liner torpedoed by U-20 on 7 May 1915 with 1,198 deaths.
Lusitania (1915) X12. Maritime Casualties and Investigation: Cunard liner sunk by U-20 off Kinsale on 7 May 1915 with 1,198 deaths; subject of the Mersey Inquiry.
Lusitania inquiry (1915) X163. Marine Accident Investigation Agencies and Landmark Inquiries: Formal investigation under Lord Mersey into the loss of the RMS Lusitania, sunk on 7 May 1915 off the Old Head of Kinsale by a German submarine torpedo.
Lusitania Wreck Surveys F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Underwater investigations off Kinsale.
LUSV X109. Maritime Autonomous Surface Ships and MASS Code: The United States Navy Large Unmanned Surface Vessel program for high endurance ocean-going USVs.
Lutgens and Reimers X79. Tugs and Towage Industry: Hamburg-based German towage company providing harbor services on the Elbe.
Lutjanidae X10. Marine Biology, Fisheries and Oceanography: Family of snappers, including red snapper (*Lutjanus campechanus*).
Luxe Yachts X125. Superyacht Industry, Builders and Brokers: Hong Kong based brokerage.
Luxembourg Maritime Administration X98. Ship Registries and Flag States: Commissariat aux Affaires Maritimes, Luxembourg's flag administration for sea-going vessels.
Luyang II-class destroyer X106. Naval Surface Combatants: People's Liberation Army Navy Type 052C destroyer class of six ships, first with active phased array radar in PLAN service.
Luyang III X11. Naval Vessels, Warship Systems and Naval Architecture: PLAN Type 052D destroyer.
Luyang III-class destroyer X106. Naval Surface Combatants: People's Liberation Army Navy Type 052D destroyer class of about 25 ships displacing roughly 7,500 tons.
LWE X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Lightweight Ethernet defined in IEC 61162-450 for navigation-equipment networking.
LWIV X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Light Well Intervention Vessel used for riserless subsea well intervention work.
LWL length waterline X162. Naval Architecture, Stability, Resistance, and Structural Design: Length of the hull at the design waterline.
LWS X33. Inland Navigation and Barge Operations: Lowest navigable water level used as a reference for fairway depth guarantees.
LXE10E X70. Reefer Containers and Cold Chain Shipping: Marine container refrigeration unit family produced by Daikin Industries for ocean reefer service.
LY2 X125. Superyacht Industry, Builders and Brokers: Predecessor MCA large yacht code, replaced by LY3 in 2013.
LY3 X125. Superyacht Industry, Builders and Brokers: Current MCA Large Yacht Code, applicable to commercial yachts in MCA flag states.
LY3 (Large Yacht Code, Edition 3) X35. Yacht and Superyacht Industry: 2013 UK MCA code for commercial yachts 24 m and above, superseded in Red Ensign jurisdictions by REG Y in 2017.
Lyman Briggs Maritime Education Project X121. Maritime Education, Academies and Universities: Historical US small-craft training initiative.
Lyme disease X36. Shipboard Medical, Telemedicine and Seafarer Health: Tick-borne illness with delayed presentation; doxycycline first-line treatment.
Lyndon B. Johnson (USS) DDG-1002 X106. Naval Surface Combatants: Third and final Zumwalt-class destroyer, christened 2019 at Bath Iron Works.
Lyngsø Marine X89. ECDIS and Bridge Equipment Makers: Danish bridge automation company whose product line was folded into SAM Electronics and subsequently Wartsila Voyage Solutions.
Lynn and Inner Dowsing X123. Offshore Wind Installation Vessels and Operators: 194 MW UK wind farm commissioned 2009, Centrica operated, 54 Siemens 3.6 MW turbines.
Lynx X62. Naval Warships and Combat Systems: Westland Lynx maritime helicopter, predecessor of the AW159 Wildcat in Royal Navy service.
Lynxville X103. US Inland Waterway Towing and Barge: A Wisconsin town on the Upper Mississippi River adjacent to Lock and Dam 9.
Lyon Mission Control Centre X80. Maritime Search and Rescue Coordination: French Mission Control Centre for Cospas-Sarsat alerts.
Lyrra (MV Lyrra) X132. High-Speed Craft, Hydrofoils and Ferry Operators: Wave-piercing catamaran historically operated by Stena and other charterers in northern Europe.
Lyse Subsea X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Norwegian operator of municipal HVDC and HVAC links in the Stavanger region.