Glossary
Maritime glossary, terms beginning with A
All maritime glossary terms that begin with the letter A, drawn from every subject section. 3739 entries.
Showing 250 of 3739 terms (page 1 of 15).
- A and O Shearman X114. Maritime Arbitration and Shipping Law Firms
- Global firm formed by the 2024 merger of Allen and Overy and Shearman and Sterling, retaining a transactional shipping finance practice.
- A and R X125. Superyacht Industry, Builders and Brokers
- Common short form for Abeking and Rasmussen, the Lemwerder, Germany yard founded in 1907.
- A Hak Industrial Services X167. Major Salvage Companies, Wreck Removals, and Equipment
- Dutch heavy lift and pipeline services contractor based in Tricht, Netherlands, used in maritime salvage support roles for cargo handling.
- A rating (CII) X34. Decarbonization, Alternative Fuels and Carbon Pricing
- Top Carbon Intensity Indicator band under MEPC.336(76), denoting major superior performance versus the required AER reference line.
- A-190 X62. Naval Warships and Combat Systems
- Russian 100mm naval gun fitted on Steregushchiy-class corvettes and Admiral Gorshkov-class frigates for surface and shore bombardment.
- A-50 SylVer X11. Naval Vessels, Warship Systems and Naval Architecture
- French vertical launch system family by DCNS for Aster missile family.
- A-60 division X24. Cruise, Passenger Ship and Ferry Operations
- SOLAS II-2 fire-rated bulkhead or deck insulated to limit temperature rise on the unexposed side for 60 minutes in a standard fire test.
- A-Class Catamaran F4. Recreational Boating, Yachting and Sport
- International one-design beach catamaran for one sailor.
- A-class division X24. Cruise, Passenger Ship and Ferry Operations
- SOLAS II-2 steel or equivalent bulkhead insulated with non-combustible material, rated A-0, A-15, A-30, or A-60.
- A-class ship (Polar Code) X27. Polar Code, Ice Navigation and Polar Operations
- Category A ship designed for operation in polar waters in at least medium first-year ice, which may include old ice inclusions.
- A-DGS X122. Submarine Cable Laying, Repair Vessels and Operators
- Armored Double Galvanized Steel submarine cable construction, used in shallow water zones below 1,500 m where additional mechanical protection is required against trawling and anchoring.
- A-Frame X13. Marine Salvage and Wreck Removal
- Two-legged lifting structure on salvage barges or sheerlegs used for heavy wreck lifts.
- A-frame LARS X65. ROVs, AUVs, USVs and Marine Robotics
- Articulated overboarding structure mounted on a deck that swings an ROV cage or AUV outboard of the vessel side or stern for launch and recovery.
- A-frame stowage X26. Reefer Containers and Cold Chain Logistics
- Vessel arrangement on container ships with reefer plugs concentrated in specific bays for power access.
- A-hull X3. Ship Handling, Seamanship and Deck Vocabulary
- Lying with all sail furled and helm lashed to leeward in heavy weather.
- A-II/2 Master and Chief Mate Unlimited X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation specifying competency standards for masters and chief mates on ships of 3,000 GT or more on unlimited voyages.
- A-II/3 OOW and Master Near-Coastal under 500 GT X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation defining competence for officers in charge of navigational watches and masters on near-coastal ships under 500 GT.
- A-II/5 Able Seafarer Deck X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation establishing competency for ratings serving as able seafarers in the deck department on ships of 500 GT or more.
- A-III/1 Officer in Charge of an Engineering Watch X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation governing competency for officers in charge of an engineering watch in manned or designated unmanned machinery spaces on ships powered by main propulsion of 750 kW or more.
- A-III/2 Chief Engineer and Second Engineer Unlimited X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation specifying standards for chief engineers and second engineers on ships powered by main propulsion machinery of 3,000 kW or more.
- A-III/3 Chief Engineer and Second Engineer 750-3000 kW X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation covering chief engineers and second engineers on ships powered by main propulsion of 750 kW to less than 3,000 kW.
- A-III/4 Rating Forming Part of an Engineering Watch (RFPEW) X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation setting the minimum competency standard for ratings forming part of an engineering watch in manned or designated unmanned machinery spaces.
- A-III/5 Able Seafarer Engine X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation establishing the competency standard for ratings serving as able seafarers in the engine department.
- A-III/6 Electro-Technical Officer (ETO) X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation specifying competency for electro-technical officers on ships powered by main propulsion machinery of 750 kW or more.
- A-III/7 Electro-Technical Rating (ETR) X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation establishing minimum standards for electro-technical ratings supporting the engine room electrical and electronic systems.
- A-IV/2 GMDSS Operator (GOC) X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation defining the General Operator's Certificate competency for GMDSS radio personnel on ships operating in all sea areas.
- A-Jack X175. Port Engineering, Dredging, Breakwaters, and Quays
- Concrete armour unit with twelve legs used for shoreline and breakwater protection, manufactured under license by Armortec.
- A-LF-Sea X165. Marine Coatings, Antifouling, and Hull Husbandry
- Nippon Paint Marine's hydrogel-based low-friction antifouling employing hydration to suppress biofilm and frictional resistance.
- A-V/1-1-1 Basic Training for Oil and Chemical Tanker Cargo Operations X160. Maritime Academies, Universities, and STCW Certification
- STCW basic tanker familiarization required for all seafarers assigned duties on oil or chemical tankers.
- A-V/1-1-2 Advanced Training for Oil Tanker Cargo Operations X160. Maritime Academies, Universities, and STCW Certification
- STCW advanced training mandatory for masters, chief engineers, chief mates, second engineers, and any person with immediate responsibility for cargo on oil tankers.
- A-V/1-1-3 Advanced Training for Chemical Tanker Cargo Operations X160. Maritime Academies, Universities, and STCW Certification
- STCW advanced training mandatory for senior officers and persons with immediate cargo responsibility on chemical tankers.
- A-V/1-2-1 Basic Training for Liquefied Gas Tanker Cargo Operations X160. Maritime Academies, Universities, and STCW Certification
- STCW basic liquefied gas tanker familiarization required for all seafarers assigned duties on gas carriers.
- A-V/1-2-2 Advanced Training for Liquefied Gas Tanker Cargo Operations X160. Maritime Academies, Universities, and STCW Certification
- STCW advanced training mandatory for senior officers and cargo-responsible personnel on liquefied gas carriers including LNG.
- A-V/2 Passenger Ship Crowd Management and Crisis Training X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation setting training standards for masters, officers, ratings, and other personnel serving on passenger ships.
- A-V/4 Polar Code Training X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation mandating basic and advanced training for masters and officers on ships operating in polar waters under the Polar Code.
- A-VI/1 Basic Safety Training (BST) X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation grouping the four mandatory basic safety modules covering personal survival, fire fighting, first aid, and personal safety and social responsibilities.
- A-VI/2 PSCRB and FRB X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation establishing proficiency in survival craft and rescue boats other than fast rescue boats, plus the separate fast rescue boat endorsement.
- A-VI/3 Advanced Fire Fighting (AFF) X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation governing the advanced fire fighting endorsement required for officers and persons designated to control fire fighting operations.
- A-VI/4 Medical First Aid and Medical Care X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation establishing medical first aid (for designated crew) and medical care (for officers in charge of medical care on board) endorsements.
- A-VI/5 Ship Security Officer (SSO) X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation setting competency standards for the designated ship security officer responsible for ISPS compliance on board.
- A-VI/6-1 Security Awareness X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation requiring basic security awareness training for all seafarers prior to assignment to shipboard duties.
- A-VI/6-2 Designated Security Duties X160. Maritime Academies, Universities, and STCW Certification
- STCW regulation establishing competency for seafarers assigned designated security duties under the ship security plan.
- A. Vassilopoulos Group X85. Ferries, Ro-Pax Operators and Routes
- Greek shipping and logistics conglomerate historically linked to Hellenic Mediterranean Lines and Adriatic ro-pax services.
- A. von Humboldt II X128. Sail Training Ships and Tall Ship Associations
- German sail training barque built 2011 by BVT Brenn und Verformtechnik Bremen, 65 m length, 1,360 sq m sail area, owned by Deutsche Stiftung Sail Training, replacing the original Alexander von…
- A.1001(25) A1. The IMO and the international regulatory framework
- IMO Assembly resolution adopting the 2007 Guidelines on Places of Refuge for Ships in Need of Assistance.
- A.1025(26) X127. Maritime Security, Anti-Piracy and PMSCs
- IMO Code of Practice for the Investigation of Crimes of Piracy and Armed Robbery Against Ships, adopted 2 December 2009.
- A.1045(27) X32. Marine Pilotage and Pilot Operations
- IMO Assembly Resolution adopted 30 November 2011 containing Recommendations on Pilot Transfer Arrangements, replacing A.889(21).
- A.1045(27) Pilot transfer arrangements X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary
- Recommendation on construction and operation of pilot ladders.
- A.1067(28) IMSAS X158. IMO Conventions, Protocols, Codes, and Resolutions
- IMO Assembly resolution of 4 December 2013 adopting the Framework and Procedures for the IMO Member State Audit Scheme.
- A.1070(28) III Code X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary
- IMO Instruments Implementation Code adopted 4 December 2013.
- A.1078(28) IMO ship identification number scheme X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary
- Extended to fishing vessels of 100 GT and above on a voluntary basis.
- A.1080(28) X32. Marine Pilotage and Pilot Operations
- IMO Resolution 2013 on recommendations on the use of pilotage services in the Torres Strait and Great North East Channel.
- A.1106(29) X107. Maritime Cybersecurity and OT Security
- IMO Assembly Resolution adopted 2 December 2015 on Revised Guidelines for the Onboard Operational Use of Shipborne Automatic Identification Systems (AIS).
- A.1106(29) AIS Guidelines X158. IMO Conventions, Protocols, Codes, and Resolutions
- Assembly resolution of 2 December 2015 revising the Guidelines for the onboard operational use of shipborne automatic identification systems.
- A.1107(29) X127. Maritime Security, Anti-Piracy and PMSCs
- IMO Assembly Resolution adopted 2 December 2015, revising recommendations to governments for preventing and suppressing piracy and armed robbery against ships.
- A.1108(29) X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
- IMO Assembly Resolution of 2015 amending Recommendations on Pilot Transfer Arrangements to align with SOLAS V/23 and clarifying rigging and equipment requirements.
- A.1116(30) Voyage data recorders X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary
- Recommendation on continuity of service for VDR.
- A.1117(30) IMO Number Scheme X158. IMO Conventions, Protocols, Codes, and Resolutions
- Assembly resolution of 6 December 2017 revising the IMO ship identification number scheme to extend voluntary application to fishing vessels of 100 GT and above.
- A.1163(32) X107. Maritime Cybersecurity and OT Security
- IMO Assembly Resolution adopted in 2021 updating procedures for port State control under the ISM Code framework.
- A.424(XI) X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS
- IMO performance standard for gyrocompasses adopted in 1979.
- A.485(12) X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
- IMO Assembly Resolution on Recommendations on the Training, Qualifications and Operational Procedures for Maritime Pilots Other than Deep-Sea Pilots, superseded by A.960(23).
- A.485(XII) X32. Marine Pilotage and Pilot Operations
- IMO Assembly Resolution adopted 1981 containing Recommendations on the Use of Adequately Qualified Deep-Sea Pilots in the North Sea, English Channel and Skagerrak.
- A.486(12) X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
- IMO Assembly Resolution of 1981 on Recommendations on the Training, Qualifications and Operational Procedures for Deep-Sea Pilots.
- A.486(XII) X32. Marine Pilotage and Pilot Operations
- IMO Assembly Resolution 1981 recommending pilotage in the Euro-Channel and IJ-Channel.
- A.620(15) X32. Marine Pilotage and Pilot Operations
- IMO Resolution 1987 on navigation through the entrances to the Baltic Sea recommending pilotage.
- A.710(17) X32. Marine Pilotage and Pilot Operations
- IMO Resolution 1991 on use of pilotage services in the Euro-Channel and IJ-Channel.
- A.741(18) ISM Resolution X158. IMO Conventions, Protocols, Codes, and Resolutions
- IMO Assembly resolution of 4 November 1993 that adopted the International Safety Management Code, later made mandatory through SOLAS Chapter IX.
- A.817(19) X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS
- Original IMO performance standard for ECDIS adopted in 1995 prior to MSC.232(82) revision.
- A.821(19) X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS
- IMO performance standard for gyrocompasses for high-speed craft.
- A.827(19) X32. Marine Pilotage and Pilot Operations
- IMO Resolution 1995 on ships' routeing including pilotage recommendations for Torres Strait and Great Barrier Reef.
- A.857(20) VTS Guidelines X158. IMO Conventions, Protocols, Codes, and Resolutions
- IMO Assembly resolution of 27 November 1997 establishing Guidelines for Vessel Traffic Services and qualifications, training, and certification of VTS operators.
- A.889(21) X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
- IMO Assembly Resolution of 1999 on Pilot Transfer Arrangements, later superseded by A.1045(27).
- A.918(22) IMO SMCP X158. IMO Conventions, Protocols, Codes, and Resolutions
- Assembly resolution of 29 November 2001 adopting the Standard Marine Communication Phrases for shipboard and ship-to-shore communications.
- A.960(23) X32. Marine Pilotage and Pilot Operations
- IMO Assembly Resolution adopted 5 December 2003 containing Recommendations on Training and Certification and on Operational Procedures for Maritime Pilots other than Deep-Sea Pilots.
- A.P. Moller Maersk X79. Tugs and Towage Industry
- Danish shipping conglomerate that owns Svitzer, one of the world's largest harbor towage operators.
- A.P. Moller Terminals Bunker Supply X72. Bunkering Hubs and Bunker Suppliers
- Inland barge supply arm operating in selected ARA terminals on behalf of Maersk affiliates and third party offtakers.
- A&K Travel Group X64. Cruise Industry Operators, Brands and Ships
- Luxury travel holding company that acquired the Crystal Cruises brand and assets in 2022 and relaunched the line in 2023.
- A&P Falmouth X113. Drydock and Ship Repair Yards
- UK ship repair yard in Falmouth, Cornwall, operating three graving docks including the Queen Elizabeth Dock and serving cruise, naval, and commercial vessels.
- A&P Group X113. Drydock and Ship Repair Yards
- British ship repair group with facilities at Falmouth, Tyne, and Tees offering drydocking, fabrication, and conversion services.
- A&P Tees X113. Drydock and Ship Repair Yards
- River Tees facility of A&P Group at Middlesbrough providing drydocking, offshore fabrication, and decommissioning support.
- A&P Tyne X113. Drydock and Ship Repair Yards
- Wallsend yard of A&P Group on the River Tyne with two drydocks and extensive quayside repair berths.
- A1 Cell X73. Marine Hydrography, Charting and ENC
- An ENC cell at usage band 1 (Overview), the smallest scale in the S-57 navigational purpose hierarchy.
- A1 refrigerant class X70. Reefer Containers and Cold Chain Shipping
- ASHRAE Standard 34 safety designation for non-flammable refrigerants with lower toxicity, including R-134a, R-404A, R-407C, and R-507A used historically in marine reefer containers.
- A1 Sea Area X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation
- GMDSS area within VHF DSC coverage of at least one coast station, typically 20 to 30 nautical miles.
- A1 Telekom Austria X91. Submarines and Submarine Cable Systems
- European telecommunications operator with consortium stakes in several Mediterranean and Black Sea submarine cable systems.
- A1/A2/A3/A4 Sea Areas E3. Technology, digitalization and smart shipping
- GMDSS sea-area definitions by communications coverage.
- A18-D X65. ROVs, AUVs, USVs and Marine Robotics
- Mid-size diesel-recharge AUV from ECA Group rated to 3,000 m for hydrographic and rapid environmental assessment work.
- A18-M X65. ROVs, AUVs, USVs and Marine Robotics
- ECA Group mine countermeasures variant of the A18 platform carrying a synthetic aperture sonar for shallow and deep MCM survey.
- A2 (cable system) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
- Planned subsea cable system linking Asian markets, named in industry roadmaps as part of regional diversification away from South China Sea routes.
- A2 Cell X73. Marine Hydrography, Charting and ENC
- An ENC cell at usage band 2 (General), used for ocean and offshore passage planning.
- A2 Sea Area X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation
- GMDSS area within MF DSC coverage of at least one coast station, excluding A1, typically out to 100 to 200 nautical miles.
- A2/AD E1. Maritime security, geopolitics and risk
- Anti-access/area-denial strategy aimed at preventing adversary forces from entering or operating freely in a maritime zone.
- A2/AD (Anti-Access/Area Denial) E2. Naval, defence and maritime law enforcement
- Strategy to deny adversary access/operation within a maritime zone.
- A27-D X65. ROVs, AUVs, USVs and Marine Robotics
- Larger ECA Group AUV with extended endurance for deep water survey down to 3,000 m water depth.
- A27-M X65. ROVs, AUVs, USVs and Marine Robotics
- Mine countermeasures version of the ECA A27 AUV with high resolution synthetic aperture sonar and side-looking arrays.
- A2L refrigerant class X70. Reefer Containers and Cold Chain Shipping
- ASHRAE Standard 34 designation for mildly flammable, lower-toxicity refrigerants such as R-1234yf and R-32, relevant to next-generation reefer machinery under HFC phase-down.
- A2SEA X42. Offshore Wind Installation and Cable Lay
- Former Danish offshore wind installation contractor whose fleet, including Sea Installer and Sea Challenger, was acquired by DEME Offshore in 2017.
- A3 Cell X73. Marine Hydrography, Charting and ENC
- An ENC cell at usage band 3 (Coastal), used for coastwise navigation.
- A3 refrigerant class X70. Reefer Containers and Cold Chain Shipping
- ASHRAE Standard 34 designation for highly flammable refrigerants including R-290 propane and R-1270 propylene, generally restricted in marine container service.
- A3 Sea Area X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation
- GMDSS area within geostationary satellite (Inmarsat) coverage, excluding A1 and A2, roughly 76 N to 76 S.
- A4 Cell X73. Marine Hydrography, Charting and ENC
- An ENC cell at usage band 4 (Approach), used when approaching ports and channels.
- A4 Routine X22. Piracy, Maritime Security and Armed Protection
- BMP shipboard preparedness drill running Assess, Avoid, Alert, Apply hardening before entering a high risk area.
- A4 Sea Area X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation
- GMDSS area outside A1, A2 and A3, comprising the polar regions above 76 latitude.
- A5 Cell X73. Marine Hydrography, Charting and ENC
- An ENC cell at usage band 5 (Harbour), used inside port limits and confined waters.
- A6 Cell X73. Marine Hydrography, Charting and ENC
- An ENC cell at usage band 6 (Berthing), the largest scale used for berth-by-berth operations.
- A60 Class Container X83. ISO Container Manufacturing and Leasing
- Insulated container variant rated for fire resistance under SOLAS A60 panel standards, used for hazardous stowage on certain offshore vessels.
- AA Class Securing Device X9. Cargo Securing, Lashing and Stability Vocabulary
- Annex 13 CSS Code designation for ships' fixed securing devices rated by Maximum Securing Load.
- AAA X4. Marine Insurance, P&I and Claims
- Association of Average Adjusters, UK professional body for general average adjusters founded 1869.
- AAA (Association of Average Adjusters, UK) X157. Marine Loss Adjusters, GA Practice, and Casualty Firms
- Professional body founded in London in 1869 to standardize practice among average adjusters handling marine insurance claims.
- AAA Salvage Award X141. Marine Salvage Industry and Wreck Removal Contractors
- Highest grade of Lloyd's Open Form arbitration award, reflecting exceptional skill and danger encountered by salvors.
- AAAA (Association of Average Adjusters of the United States) X157. Marine Loss Adjusters, GA Practice, and Casualty Firms
- US professional association of average adjusters, founded in 1879, that publishes Rules of Practice for US marine claims.
- AAACN X157. Marine Loss Adjusters, GA Practice, and Casualty Firms
- Association of Average Adjusters of Canada, the Canadian counterpart professional body for average adjusting practice.
- AAD X133. Polar Research Vessels and Polar Code Regimes
- Australian Antarctic Division, part of the Department of Climate Change, Energy, the Environment and Water, headquartered in Kingston, Tasmania, operates RSV Nuyina.
- AAE-1 (Asia-Africa-Europe-1) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
- Approximately 25,000 km submarine cable system connecting Hong Kong to Marseille via Southeast Asia, the Middle East, and the Mediterranean, in service since 2017.
- AAG X11. Naval Vessels, Warship Systems and Naval Architecture
- Advanced Arresting Gear, electromagnetic arrestor on Ford-class CVN replacing Mk 7 hydraulic gear.
- AAG (Advanced Arresting Gear) X106. Naval Surface Combatants
- Electromagnetic energy-absorbing arresting system replacing hydraulic Mk 7 gear on Ford-class carriers, manufactured by General Atomics.
- AAIC X68. Maritime Satcom and Telecommunications
- Accounting Authority Identification Code used by Inmarsat to route satellite call billing to a designated maritime accounting authority.
- Aak X39. Pre-1900 Maritime History
- A flat-bottomed Dutch inland barge of the seventeenth and eighteenth centuries used on the Rhine and Maas for cargo transport.
- AAL Antwerp X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class multipurpose heavy-lift vessel in the AAL Shipping fleet, rigged with twin cranes for tandem heavy-lift work.
- AAL Brisbane X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class heavy-lift multipurpose vessel deployed by AAL Shipping on Asia-Australia and Asia-Middle East routes.
- AAL Class A X81. Project Cargo, Heavy-Lift and Module Carriers
- AAL Shipping's largest-generation 31,000 dwt multipurpose heavy-lift design with twin heavy-lift cranes capable of tandem lifts.
- AAL Class G X81. Project Cargo, Heavy-Lift and Module Carriers
- AAL Shipping's mid-generation multipurpose heavy-lift class with twin cranes.
- AAL Class S X81. Project Cargo, Heavy-Lift and Module Carriers
- Smaller multipurpose heavy-lift class in the AAL Shipping fleet for regional project work.
- AAL Dampier X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class MPP vessel in AAL Shipping's Asia-Australia trade, configured for project, breakbulk and bulk cargo.
- AAL Fremantle X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping multipurpose heavy-lift vessel serving Australasian project trades.
- AAL Galveston X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping vessel operating in the trans-Atlantic and Gulf of Mexico project sector.
- AAL Gladstone X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping heavy-lift multipurpose vessel.
- AAL Hong Kong X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping MPP vessel on the Asia-Pacific liner service.
- AAL Houston X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping vessel deployed in trans-Atlantic project trades.
- AAL Kembla X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping multipurpose heavy-lift vessel.
- AAL Melbourne X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping MPP heavy-lift vessel.
- AAL Newcastle X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping heavy-lift vessel operating Asia-Australia services.
- AAL Shanghai X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping multipurpose heavy-lift vessel.
- AAL Shipping X81. Project Cargo, Heavy-Lift and Module Carriers
- Singapore-headquartered multipurpose and heavy-lift operator originating from Schoeller Holdings, running a fleet of A-Class, G-Class and S-Class MPP vessels on global liner trades.
- AAL Singapore X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping multipurpose vessel on Asia-Pacific liner services.
- AAL Sydney X81. Project Cargo, Heavy-Lift and Module Carriers
- A-Class AAL Shipping vessel deployed on the Asia-Australia liner trade.
- Aalborg X85. Ferries, Ro-Pax Operators and Routes
- Northern Jutland Danish port served historically by Baltic ferry feeders and now primarily a cargo terminal.
- Aalborg AQ Composite Boiler X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
- Combined exhaust gas and oil-fired boiler from Aalborg used on tankers and bulk carriers for steam generation at sea and in port.
- Aalborg Industries X63. Marine Auxiliary Machinery and Pumps
- Danish marine boiler manufacturer founded in 1919, now operating as Alfa Laval Aalborg after the 2007 acquisition.
- Aalborg Industries (Alfa Laval) X94. Port Machinery and Quay Equipment Makers
- Danish marine equipment maker historically supplying accommodation ladders, gangways, and pilot ladders before integration into Alfa Laval's marine division.
- Aalborg Maritime Museum F2. Maritime Culture, Heritage, Archaeology, Art and Museums
- Danish museum of merchant shipping history.
- Aalborg Mission OL X63. Marine Auxiliary Machinery and Pumps
- Oil-fired auxiliary boiler series from Alfa Laval Aalborg used on tankers and bulk carriers for steam generation.
- Aalborg Mission OS X63. Marine Auxiliary Machinery and Pumps
- Combined oil-fired and exhaust gas boiler from Alfa Laval Aalborg integrated as a composite unit.
- Aalborg Mission XS-TC X63. Marine Auxiliary Machinery and Pumps
- Smoke-tube exhaust gas economizer from Alfa Laval Aalborg fitted in the funnel uptake of the main engine.
- Aalborg Mission XW-TG X63. Marine Auxiliary Machinery and Pumps
- Water-tube exhaust gas boiler designed by Alfa Laval Aalborg for higher steam pressures.
- Aalborg MissionSky X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
- Steam atomization auxiliary boiler design from Alfa Laval Aalborg with reduced NOx emissions and high turn-down ratio.
- Aalborg OC-TCi X63. Marine Auxiliary Machinery and Pumps
- Composite oil-fired and exhaust gas boiler from Alfa Laval Aalborg for combined heat recovery and burner firing.
- Aalborg OL X63. Marine Auxiliary Machinery and Pumps
- Vertical cylindrical oil-fired auxiliary boiler with annular furnace from Alfa Laval Aalborg.
- Aalborg OL Boiler X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
- Vertical fire-tube auxiliary boiler in the Mission OL series, requiring periodic descaling and refractory inspection at 8,000-hour intervals.
- Aalborg OM-TCi X63. Marine Auxiliary Machinery and Pumps
- Combined vertical oil-fired and exhaust gas heated boiler used on small to medium tankers.
- Aalborg OS Boiler X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
- Oil-fired auxiliary steam boiler from Alfa Laval Aalborg in the Mission OS series, with annual fireside inspection and triennial waterside survey.
- Aalborg OS-TCi X63. Marine Auxiliary Machinery and Pumps
- Smoke-tube auxiliary boiler with side-fired burner integrated with exhaust gas section.
- Aalborg University Department of the Built Environment X160. Maritime Academies, Universities, and STCW Certification
- Danish research university offering marine and offshore civil engineering programs in Aalborg.
- Aalborg XW X63. Marine Auxiliary Machinery and Pumps
- Water-tube exhaust gas economizer used downstream of low-speed two-stroke main engines.
- Aalesund Campus NTNU X55. Marine Simulators, Training and Maritime Academies
- Maritime faculty of the Norwegian University of Science and Technology, hosting bridge, engine, and DP simulators in Aalesund, Norway.
- Aalesund University College X121. Maritime Education, Academies and Universities
- Former Norwegian institution in Aalesund, founded 1994, merged into NTNU in 2016 as the Department of Ocean Operations and Civil Engineering; offers Nautical Science and Marine Technology degrees.
- Aamira X134. LNG and LPG Carrier Operators and Containment Systems
- Q-Max LNG carrier of 266,000 m3 delivered 2010 by Samsung Heavy Industries for Nakilat, Qatar flag, hull number 1689.
- Aanderaa Data Instruments X96. Hull Integrity Monitoring and Strain Gauges
- Norwegian oceanographic instrumentation manufacturer producing wave and current sensors used in marine measurement campaigns.
- AAOS X36. Shipboard Medical, Telemedicine and Seafarer Health
- American Academy of Orthopaedic Surgeons; publishes Emergency Care and Transportation of the Sick and Injured used in shipboard first-aid training.
- AAPA X15. Ports, Terminals and Stevedoring
- American Association of Port Authorities, trade body representing seaports in the Americas.
- AAR X5. Marine Surveying and Inspection
- Average Adjuster's Report; settlement document apportioning general average contributions.
- Aarhus X85. Ferries, Ro-Pax Operators and Routes
- Second largest Danish city and port served by Finnlines Helsinki to Aarhus freight ro-pax rotation.
- AARI X27. Polar Code, Ice Navigation and Polar Operations
- Arctic and Antarctic Research Institute, St Petersburg; Russian national ice service producing Arctic ice charts and forecasts.
- AAS Smartmooring X169. Container Terminal Cranes, Yard Equipment, and Lashing
- Automated mooring system using vacuum suction pads or mechanical arms to secure vessels at berth without conventional mooring lines.
- AAUS X82. Saturation Diving and Offshore Diving Operations
- American Academy of Underwater Sciences, the US scientific diving standards organization.
- AAV-7A1 X106. Naval Surface Combatants
- Tracked amphibious assault vehicle in US Marine Corps service since 1972, being replaced by the ACV.
- AAW X11. Naval Vessels, Warship Systems and Naval Architecture
- Anti-air warfare mission area covering fleet air defense.
- AAW (Anti-Air Warfare) X106. Naval Surface Combatants
- Mission area covering defense of surface forces against airborne threats including aircraft, helicopters, and missiles.
- AAW Commander X11. Naval Vessels, Warship Systems and Naval Architecture
- Officer responsible for anti-air warfare in a carrier strike group.
- AAWA X109. Maritime Autonomous Surface Ships and MASS Code
- Advanced Autonomous Waterborne Applications Initiative, a Rolls-Royce-led research consortium that ran from 2015 to 2018 to advance commercial autonomous shipping concepts.
- AAWA Roadmap X109. Maritime Autonomous Surface Ships and MASS Code
- The 2016 technical white paper published by the AAWA project outlining a phased pathway from remote-controlled coastal vessels to unmanned ocean-going ships.
- AB X21. STCW Certificates, Crewing and Seafarer Welfare
- Able Seafarer or Able Bodied seaman, an experienced deck rating qualified under STCW Regulation II/5.
- AB Deck X21. STCW Certificates, Crewing and Seafarer Welfare
- Able Seafarer Deck, an STCW II/5 rating with at least 18 months sea service or approved training.
- AB Engine X21. STCW Certificates, Crewing and Seafarer Welfare
- Able Seafarer Engine, an STCW III/5 rating qualified to perform routine engine room duties.
- AB rating X35. Yacht and Superyacht Industry
- Able-bodied seafarer qualification (STCW II/5) carried by senior yacht deckhands.
- Abaft F5. The Reference Layer: Glossary, Units, Signals and Information Sources
- Toward the stern of a vessel.
- Abaft the propeller X38. Propellers, Stern Gear and Shaft Lines
- Positional reference for any structure located astern of the propeller disc, including the rudder horn, rudder, and stern flap.
- Abalone X131. Commercial Fisheries, Trawler Fleets and Seafood Processors
- Marine gastropod of the genus Haliotis, farmed commercially in China, South Africa, Australia and Chile, with China supplying over 90% of world output.
- Abalone Recovery Program D3. Marine environmental science, pollution and conservation
- Conservation effort for depleted abalone stocks.
- Abandon ship drill C2. Ship operations, crewing and technical management
- Mandatory drill under SOLAS Chapter III.
- Abandon Ship Drill (Fishing Vessel) X87. Fishing Vessels and Fisheries Management
- Mandatory periodic muster and lifecraft launching exercise required under STCW-F 1995 and ILO C188 for crew familiarization with survival craft.
- Abandoned X12. Maritime Casualties and Investigation
- Casualty classification where master and crew leave the vessel with no intent to return.
- Abandoned Vessel X50. Ship Recycling, Demolition and Hong Kong Convention
- A ship left at a recycling facility without active ownership control, often complicating Hong Kong Convention compliance because the Ready for Recycling Certificate cannot be issued without a…
- Abandonment X4. Marine Insurance, P&I and Claims
- act by which an insured cedes proprietary rights in the insured property to underwriters as a precondition for claiming a constructive total loss.
- Abandonment (Marine Insurance) X143. Landmark Maritime Law Cases and Doctrines
- Doctrine permitting an insured to transfer the insured property to underwriters upon constructive total loss, codified in UK Marine Insurance Act 1906, sections 61 to 63.
- Abandonment (MLC definition) X154. Maritime Welfare, Seafarer Charities, and MLC Rights
- Occurs when a shipowner fails to cover repatriation, leaves the seafarer without necessary maintenance, or unilaterally severs ties including non-payment of wages for at least two months.
- Abandonment and Recovery (A&R) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
- Pipelay operation in which the pipeline end is sealed, lowered to the seabed on a wire, and later recovered to resume laying after weather or repair.
- Abandonment Database (IMO/ILO) X154. Maritime Welfare, Seafarer Charities, and MLC Rights
- Joint Tripartite Working Group database hosted by the ILO logging seafarer abandonment cases reported by governments, unions, and welfare bodies, with roughly 600 cases recorded since inception.
- Abandonment financial security X21. STCW Certificates, Crewing and Seafarer Welfare
- Mandatory MLC 2006 Regulation 2.5.2 insurance covering repatriation, wages, and essentials when a seafarer is abandoned.
- Abandonment Line X82. Saturation Diving and Offshore Diving Operations
- Emergency line used by a diver to ascend if the umbilical is severed.
- Abandonment of inspection X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA
- The termination of a SIRE or CDI inspection before completion due to safety concerns, vessel non-readiness, or operational restrictions, which is recorded against the vessel's history.
- Abandonment of Salvage X99. Marine Salvage Awards and SCOPIC
- Voluntary cessation of salvage services by the contractor before a useful result is obtained, governed by termination provisions in the LOF and LSSA Clauses.
- Abandonment of ship X12. Maritime Casualties and Investigation
- Decision by the master to evacuate, typically by lifeboat, liferaft, or rescue craft.
- Abandonment of Ships X118. Ship Recycling Yards, Beaches and Regulation
- Practice of owners deserting end-of-life vessels in port without recycling arrangements, addressed in part by the 2017 IMO/ILO/Basel Joint Working Group guidelines on seafarer welfare during…
- Abandonment of Voyage X75. IMDG Code, Classes, Packing and Segregation
- Carrier decision to terminate a dangerous goods voyage under IMDG emergency response, triggering port of refuge procedures.
- Abandonment Survey X5. Marine Surveying and Inspection
- Inspection following crew abandonment to assess vessel condition and salvageability.
- Abandonment Time X133. Polar Research Vessels and Polar Code Regimes
- Polar Code minimum survival time of at least 5 days for personal and group survival equipment after abandonment in polar waters.
- Abandonment Time, Polar X52. Polar Code, Arctic and Antarctic Shipping
- Maximum expected time of rescue used to size polar survival equipment, set at a minimum of five days under Polar Code Part I-A Chapter 8.
- Abaqus X54. Naval Architecture Software and IACS Rules
- Nonlinear finite element analysis suite developed by Dassault Systemes under the SIMULIA brand, widely used for ship structural and impact studies.
- Abatement Cost D6. Decarbonization, emissions and alternative fuels
- Cost per ton of emissions avoided.
- Abatement of Disbursement X86. Port Agency, Husbandry and Disbursement
- Reduction applied to a final disbursement account after the principal disputes specific line items with supporting evidence.
- Abatement technology X149. Marine Fuels, Bunkering, and Alternative Fuels
- Any onboard system (such as a scrubber or SCR) that reduces regulated emissions from marine fuel combustion to meet MARPOL Annex VI limits.
- ABB 800xA Marine X107. Maritime Cybersecurity and OT Security
- Distributed control system from ABB used on tankers, LNG carriers, and offshore vessels for integrated automation and power management.
- ABB A-Series Turbocharger X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
- ABB A100, A200, and A300 axial turbochargers used on MAN ME-C and Wartsila RT-flex engines, with cartridge replacement around 24,000 hours.
- ABB Ability Marine Pilot X96. Hull Integrity Monitoring and Strain Gauges
- Integrated bridge and vessel performance suite from ABB Marine that can ingest hull monitoring data alongside propulsion and navigation streams.
- ABB Ability Marine Pilot Connect X109. Maritime Autonomous Surface Ships and MASS Code
- An ABB shore connectivity layer linking onboard navigation systems to a remote operations center for monitoring and assistance.
- ABB Ability Marine Pilot Control X109. Maritime Autonomous Surface Ships and MASS Code
- An ABB onboard joystick and dynamic positioning aid that integrates sensor fusion with situational awareness to support assisted and remote vessel maneuvering.
- ABB Ability Marine Pilot Vision X78. Voyage Optimization and Vessel Performance Software
- A situational awareness product from ABB Marine and Ports providing 3D augmented visualization of vessel surroundings to support navigation and docking decisions.
- ABB Ability Tekomar XPERT Marine X78. Voyage Optimization and Vessel Performance Software
- An engine performance diagnostic and benchmarking service from ABB Turbocharging that analyzes marine engine and turbocharger data to identify efficiency losses.
- ABB Azipod D X67. Marine Electrical Systems and Shore Power
- Medium-power azimuthing podded propulsor from ABB in the 1.6 to 7 MW range, used on ferries, cruise vessels, and offshore support ships.
- ABB Azipod ICE X67. Marine Electrical Systems and Shore Power
- Ice-class variant of the Azipod podded propulsor designed for double-acting tankers and Arctic operation.
- ABB Azipod M X67. Marine Electrical Systems and Shore Power
- Modular Azipod range from ABB covering 1.3 to 4.5 MW for mid-size commercial vessels.
- ABB Azipod XO X67. Marine Electrical Systems and Shore Power
- High-power Azipod podded propulsor from ABB rated 7 to 22 MW per unit, used widely on large cruise ships.
- ABB Dynafin X67. Marine Electrical Systems and Shore Power
- Electric propulsion concept from ABB using vertically mounted oscillating blades, announced in 2024.
- ABB Emax 2 X67. Marine Electrical Systems and Shore Power
- Air circuit breaker family from ABB used as main and tie breakers on marine main switchboards up to 6,300 A.
- ABB GateVision X169. Container Terminal Cranes, Yard Equipment, and Lashing
- Optical character recognition gate automation system from ABB for reading container ISO codes, IMO placards, and chassis numbers at terminal entry and exit lanes.
- ABB HiPase X67. Marine Electrical Systems and Shore Power
- Protection and control IED platform from ABB applicable to marine MV switchgear.
- ABB HVDC Light X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
- Voltage-source converter HVDC technology developed by ABB (now Hitachi Energy), widely used in submarine power cable interconnectors.
- ABB Marine X96. Hull Integrity Monitoring and Strain Gauges
- Swiss-Swedish marine systems supplier whose offerings include hull stress monitoring integration with ABB automation and power management systems.
- ABB Marinx X25. Maritime Cybersecurity, OT and IT
- ABB integrated automation and marine control system installed on tankers, offshore and cruise vessels.
- ABB Octopus Marine X78. Voyage Optimization and Vessel Performance Software
- A vessel motion monitoring and decision support system from ABB that measures ship motions, accelerations, and fatigue loads to assist masters in heavy weather.
- ABB Onboard DC Grid X67. Marine Electrical Systems and Shore Power
- DC distribution architecture from ABB that ties generators, batteries, and propulsion drives onto a common DC bus.
- ABB PEMS X67. Marine Electrical Systems and Shore Power
- Power and Energy Management System from ABB that coordinates generators, batteries, shore power, and propulsion loads.
- ABB Power2 800 X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
- Two-stage high-pressure turbocharging system from ABB enabling Miller cycle operation and Tier III NOx compliance on medium-speed engines.
- ABB PowerCompact X67. Marine Electrical Systems and Shore Power
- Compact circuit breaker range from ABB used in marine secondary distribution.
- ABB Powerturbo X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
- ABB exhaust gas power turbine system that recovers waste heat energy from the exhaust stream to drive a generator or feed the propeller shaft.
- ABB Shore Connection X94. Port Machinery and Quay Equipment Makers
- ABB-supplied shore-to-ship high-voltage power system enabling vessels at berth to shut down auxiliary engines and draw grid power.
- ABB Tmax XT X67. Marine Electrical Systems and Shore Power
- Molded case circuit breaker family from ABB used on marine distribution boards up to 1,600 A.
- ABB TPL Turbocharger X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
- Single-stage axial-flow turbocharger family from ABB Turbocharging for large two-stroke and medium-speed engines, with overhaul intervals typically aligned with 16,000 to 24,000 running hours.
- ABB TPS Turbocharger X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
- Radial-flow turbocharger family from ABB for medium and high-speed four-stroke engines, with bearing renewal commonly recommended at 12,000 to 16,000 hours.
- ABB UCEM-2000 X69. EGCS Scrubbers, SCR and Marine Air Emissions
- Continuous emission monitoring system supplied by ABB for shipboard SO2 and CO2 measurement on EGCS-equipped vessels.
- ABB UniGear ZS1 X67. Marine Electrical Systems and Shore Power
- Air-insulated medium-voltage metal-clad switchgear from ABB rated up to 24 kV used on marine HV systems.
- ABC Anglo Belgian Corporation X67. Marine Electrical Systems and Shore Power
- Belgian builder of medium-speed marine diesel engines in the 600 to 10,800 kW range, including the DZC and DL36 series.
- ABC Dry Chemical X75. IMDG Code, Classes, Packing and Segregation
- Multipurpose fire extinguishing agent referenced in EmS fire schedules for Class 3, 4 and electrical fires aboard ships.
- ABCDE assessment X36. Shipboard Medical, Telemedicine and Seafarer Health
- Primary survey sequence (Airway, Breathing, Circulation, Disability, Exposure) used in shipboard trauma and medical emergencies.
- Abdelkader X134. LNG and LPG Carrier Operators and Containment Systems
- Conventional LNG carrier of 147,000 m3 delivered 2010 by STX France for Hyproc Shipping, Algerian operator.
- Abdul Kader Shipbreaking X118. Ship Recycling Yards, Beaches and Regulation
- Shipbreaking yard at Sitakunda, Chittagong, Bangladesh, listed among Bangladeshi facilities by the NGO Shipbreaking Platform in its annual reporting.
- Abeam B3. Nautical Science
- Bearing 090° relative to ship's heading.
- Abeam approach X32. Marine Pilotage and Pilot Operations
- Pilot boat manoeuvre running parallel to the ship at boarding speed on the lee side.
- Abeam Boarding X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
- Pilot transfer technique in which the pilot boat comes alongside the ship's lee side amidships rather than abreast of the bow or stern.
- Abeking and Rasmussen X125. Superyacht Industry, Builders and Brokers
- Privately owned Lemwerder yard that built Aviva, Excellence, Cloudbreak, and the SWATH Silver Cloud.
- Abel flash point X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
- Closed-cup flash point test method used historically for light distillates, largely superseded by Pensky-Martens for marine fuels.
- Aberdeen Bay X42. Offshore Wind Installation and Cable Lay
- Site of the European Offshore Wind Deployment Centre operated by Vattenfall off the Scottish coast.
- Aberdeen Lock X103. US Inland Waterway Towing and Barge
- A lock on the Tennessee-Tombigbee Waterway in Mississippi, part of the chain that lifts tows from Demopolis pool toward the Tennessee River divide cut.
- ABFT X87. Fishing Vessels and Fisheries Management
- Atlantic Bluefin Tuna (Thunnus thynnus), the principal high-value species managed under ICCAT Recommendation 22-08.
- ABG Sundal Collier X49. Ship Finance, Leasing and Maritime Capital Markets
- Norwegian investment bank with a shipping and offshore project finance franchise serving owners across the Oslo capital markets.
- Ablation (Glacier) D5. Coastal processes, sea-level, cryosphere and ocean observation science
- Loss of glacier mass through melting, sublimation, or calving.
- Ablative antifouling X165. Marine Coatings, Antifouling, and Hull Husbandry
- A coating that slowly wears away through hydrolysis or mechanical erosion to continuously expose fresh biocide at the surface.