Glossary

Maritime glossary, terms beginning with B (page 4)

All maritime glossary terms that begin with the letter B, drawn from every subject section. 2894 entries.

Showing 250 of 2894 terms (page 4 of 12).

Beaching Speed X118. Ship Recycling Yards, Beaches and Regulation: Final approach speed of approximately 6 to 10 knots used to drive a vessel onto the Alang slope at high tide.
Beacon B3. Nautical Science: Fixed AtoN, lit or unlit.
Beacon Decoder X80. Maritime Search and Rescue Coordination: Equipment that decodes the digital message embedded in a 406 MHz Cospas-Sarsat transmission.
Beacon Identification Code X95. GMDSS Equipment and Survival Craft Communications: 15 hexadecimal character (60 bit) or 22 hexadecimal character (87 bit) identifier encoded in a 406 MHz beacon message, programmed into Cospas-Sarsat first generation and second generation beacons.
Beacon Intermodal Leasing X83. ISO Container Manufacturing and Leasing: Container leasing company owned by Mitsubishi UFJ Lease and Finance and headquartered in Boston.
Beacon Receiver X89. ECDIS and Bridge Equipment Makers: Differential GNSS receiver tuned to medium frequency IALA radiobeacons broadcasting RTCM corrections.
Beacon Registration X80. Maritime Search and Rescue Coordination: National database linking a beacon hex identifier to vessel and owner contact details.
Beacon Wind X105. Offshore Wind Farm Installation and Vessels: Proposed US offshore wind project off Massachusetts developed by Equinor and bp.
Beacon-to-beacon pilotage X32. Marine Pilotage and Pilot Operations: Pilotage by reference to fixed aids to navigation on a known channel.
Beak X39. Pre-1900 Maritime History: The projecting structure at the bow of a galley used for ramming or boarding.
Beam X3. Ship Handling, Seamanship and Deck Vocabulary: Maximum breadth of the ship.
Beam (B) B1. Naval Architecture: Maximum breadth of the hull.
Beam (satellite) X68. Maritime Satcom and Telecommunications: Defined coverage footprint produced by a satellite antenna, often classified as global, regional, or spot.
Beam bearing X16. Nautical Science, Navigation and COLREGs: Bearing 90 degrees from the vessel's heading.
Beam Ends X39. Pre-1900 Maritime History: A ship is said to be on her beam ends when heeled so far that the deck approaches vertical.
Beam Forming Array X109. Maritime Autonomous Surface Ships and MASS Code: An antenna or sonar configuration that focuses energy in a chosen direction, used in some MASS communications and acoustic sensors.
Beam Handover X68. Maritime Satcom and Telecommunications: Transfer of a terminal connection from one satellite beam to another as the vessel moves.
Beam Hopping X68. Maritime Satcom and Telecommunications: Technique allowing a satellite to allocate capacity dynamically by time-sharing across multiple spot beams.
Beam knee X58. Shipbuilding Yards and Construction: Bracket connecting deck beams to frames or longitudinal bulkheads.
Beam Length (Beam Trawl) X87. Fishing Vessels and Fisheries Management: Spread between the trawl heads, typically 4 to 12 meters in the Dutch sole fishery.
Beam loading X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Loading bunkers across the vessel's beam from an opposite-side barge.
Beam reach X3. Ship Handling, Seamanship and Deck Vocabulary: Sailing with the wind on the beam.
Beam restriction X15. Ports, Terminals and Stevedoring: berth or lock constraint on vessel breadth.
Beam sea B3. Nautical Science: Seas approaching the vessel from abeam.
Beam Search X80. Maritime Search and Rescue Coordination: A search subdivision using parallel sweeps aligned along a survivor drift bearing.
Beam Spacing X73. Marine Hydrography, Charting and ENC: The angular distance between adjacent multibeam echo sounder beams, governing across-track resolution.
Beam Steering X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Multibeam sonar technique of electronically forming receive beams at calculated angles using delay-and-sum processing on the hydrophone array.
Beam to beam ramp X24. Cruise, Passenger Ship and Ferry Operations: Bow visor or stern door ramp arrangement on ro-pax for drive-on, drive-off operation.
Beam Trawl D4. Fisheries, aquaculture, blue economy and marine resources: Fishing net held open by a rigid beam.
Beam Trawler X87. Fishing Vessels and Fisheries Management: Vessel rigged to tow two beam trawls from outrigger booms, characteristic of the Dutch and English North Sea fleet.
Beam Trawler with Chain Matrix X87. Fishing Vessels and Fisheries Management: Variant carrying a horizontal grid of chains ahead of the ground rope to stimulate buried flatfish.
Beam Wagon X104. Project Cargo Forwarders and Heavy Transport: Specialized trailer with a central girder beam used for vessels, columns, and tanks.
Beam Width X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Angular extent of an acoustic beam, expressed in degrees, controlling along-track and across-track resolution of multibeam soundings.
Beam wind X16. Nautical Science, Navigation and COLREGs: Wind blowing at right angles to the vessel's course.
Beam Wind Drift X60. Marine Salvage and Wreck Removal: Sideways movement of a disabled vessel under wind pressure, complicating salvage tug connection.
Beam-to-draft ratio (B/T) B1. Naval Architecture: Form parameter influencing stability and resistance.
Beam, ship's X58. Shipbuilding Yards and Construction: Maximum molded breadth of the hull at the design waterline.
BEAmer X12. Maritime Casualties and Investigation: Bureau d'Enquetes sur les Evenements de Mer, the French marine casualty investigator.
BEAmer (Bureau d'Enquetes sur les Evenements de Mer) X163. Marine Accident Investigation Agencies and Landmark Inquiries: French marine accident investigation bureau established in 1997 within the Ministry responsible for the sea, headquartered in Paris and operating under the French Transport Code.
Beamy bulker (Kamsarmax) B5. Ship Types and Individual Vessels: 80,000-85,000 DWT Panamax-derived bulker.
Beans, Dried X1. Cargo Science, Commodities and Cargo Care: Hygroscopic Group C grain-like cargo.
Bear off X3. Ship Handling, Seamanship and Deck Vocabulary: Push off from a wharf or another vessel.
Bear up X3. Ship Handling, Seamanship and Deck Vocabulary: Put the helm up to bring the ship before the wind.
Bear, USCGC (WMEC-901) X130. National Coast Guards and Cutter Fleets: Lead ship of Famous-class medium endurance cutters, commissioned 1983, homeported Portsmouth, Virginia.
Bearing F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Direction to an object from the observer.
Bearing Compass (Fishing Vessel) X87. Fishing Vessels and Fisheries Management: Auxiliary compass required by SOLAS Chapter V and by the Cape Town Agreement Annex IV for vessels above the size threshold.
Bearing line of position B3. Nautical Science: LOP from a single compass bearing.
Bearing oil X61. Marine Lubricants and Cylinder Oils: Lubricant for plain or rolling element bearings, often supplied from the system oil circuit on marine engines.
Bearing Oil Film Thickness X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Calculated minimum oil film in hydrodynamic journal bearings, monitored indirectly through inlet temperature, pressure, and ovality measurement.
Bearing Only Tracking X109. Maritime Autonomous Surface Ships and MASS Code: A target tracking technique used when range is uncertain, common for camera-only detections in autonomous lookout systems.
Bearing whitemetal B2. Marine Engineering: Tin-based babbitt lining of journal bearings.
Beat X84. Yacht Racing, Regattas and Sailing Governance: A course sailed upwind, requiring a series of tacks to make ground to windward.
Beating X84. Yacht Racing, Regattas and Sailing Governance: The act of sailing close-hauled into the wind.
Beatrice X42. Offshore Wind Installation and Cable Lay: Scottish offshore wind farm in the Moray Firth developed by SSE Renewables, Copenhagen Infrastructure Partners, and Red Rock Power.
Beatrice Demonstrator X57. Ocean Energy Beyond Wind: Early offshore renewable installation in the Moray Firth used as reference for combined wind, tidal, and hydrogen studies.
Beatrice Offshore Wind Farm X105. Offshore Wind Farm Installation and Vessels: 588 MW Scottish wind farm in the Moray Firth developed by SSE Renewables and commissioned in 2019, notable for jacket foundations.
Beaufort Cup F4. Recreational Boating, Yachting and Sport: Cork Week regatta trophy.
Beaufort Force Exclusion X78. Voyage Optimization and Vessel Performance Software: The contractual practice of excluding voyage time from performance assessment when wind force exceeds a defined Beaufort scale threshold, commonly Beaufort 4 or 5.
Beaufort Gyre X133. Polar Research Vessels and Polar Code Regimes: Anticyclonic Arctic Ocean circulation north of Alaska, surveyed by USCGC Healy science cruises.
Beaufort scale B3. Nautical Science: Empirical wind force scale 0-12.
Beaufort Sea X27. Polar Code, Ice Navigation and Polar Operations: Arctic sea north of Alaska and northwestern Canada, heavy multi-year ice region.
Beaufort Sea Gyre X27. Polar Code, Ice Navigation and Polar Operations: Wind-driven clockwise current that accumulates and recirculates Arctic sea ice.
Beaufort wind force scale X16. Nautical Science, Navigation and COLREGs: Empirical scale from 0 (calm) to 12 (hurricane) relating wind speed to sea conditions.
Beaumont Texas OCI X140. Ammonia as Marine Fuel and Hydrogen Shipping: OCI N.V. ammonia complex producing 1.1 Mtpa, exporting via the Jefferson Energy terminal.
Beaver dredger X124. Dredging Industry and Reclamation Contractors: IHC range of standardized small CSDs from Beaver 30 to Beaver 6500, the model number denoting nominal discharge diameter in millimeters.
Beazley X117. Marine Insurance Markets, Captives and Reinsurance: Lloyd's managing agent operating Syndicates 623, 2623, 3622, and 3623, writing marine, cargo, war, and political violence.
Beazley Marine X145. P&I Clubs, War Risk Insurers, and Marine Insurance Markets: Lloyd's specialist insurer, Syndicate 2623 and 623, underwriting hull, cargo, and war risk.
BEC X107. Maritime Cybersecurity and OT Security: Business Email Compromise, fraud in which an attacker impersonates an executive or counterparty to redirect payments.
BEC Business Email Compromise X25. Maritime Cybersecurity, OT and IT: Fraud where attackers impersonate executives or vendors to redirect payments, common in bunker and charter party transactions.
BECCS X34. Decarbonization, Alternative Fuels and Carbon Pricing: Bioenergy with carbon capture and storage; combines biofuel use with CO2 capture for net-negative emissions accounting.
Becker Marine Steering Gear X50. Ship Recycling, Demolition and Hong Kong Convention: Equipment commonly cataloged as IHM Part I item with associated lubricants and seals listed in Part III.
Becker Mewis Duct X38. Propellers, Stern Gear and Shaft Lines: Pre-swirl wake-equalizing duct with internal fins, developed by Becker Marine Systems, fitted ahead of the propeller.
Becker rudder (flap rudder) X38. Propellers, Stern Gear and Shaft Lines: High-lift articulated rudder with a trailing flap linked to the main blade, increasing maximum lift coefficient.
Becker Twisted Fin X38. Propellers, Stern Gear and Shaft Lines: Pre-swirl fin device installed forward of the propeller to recover rotational energy and improve efficiency.
Becker Twisted Rudder X38. Propellers, Stern Gear and Shaft Lines: Rudder with a leading edge twisted to match the propeller slipstream rotation, reducing rudder cavitation.
Becket X3. Ship Handling, Seamanship and Deck Vocabulary: Small loop or eye of rope.
Beclomethasone X36. Shipboard Medical, Telemedicine and Seafarer Health: Inhaled corticosteroid for asthma maintenance therapy.
Becquerel X75. IMDG Code, Classes, Packing and Segregation: SI unit of radioactivity, fundamental measure for activity content in Class 7 IMDG consignments.
Bed leveler X124. Dredging Industry and Reclamation Contractors: Drag beam or plough that smooths dredged surfaces to design line.
Bedding X9. Cargo Securing, Lashing and Stability Vocabulary: Material placed under heavy cargo to distribute load on deck or tanktop.
Bedell Cristin X114. Maritime Arbitration and Shipping Law Firms: Channel Islands firm advising on ship registration and ship finance disputes in Jersey.
Bedeschi X94. Port Machinery and Quay Equipment Makers: Italian manufacturer of stackers, reclaimers, and shiploaders for bulk terminals handling coal, iron ore, and cement.
Bedford Basin mine barrier X77. Naval Mine Warfare and Mine Countermeasures: A historical Royal Canadian Navy defensive minefield at the entrance to Halifax Harbour during the World Wars.
Bedform D2. Hydrography, tides, waves, bathymetry and marine geology: Repetitive seabed feature such as ripples, dunes, or megaripples.
Bedplate X6. Container, Intermodal and Trade Codes: Steel base on a tank container frame supporting the pressure vessel.
Bee (Towing Bee) X30. Tug Operations and Harbour Towage: Vertical post on a tug deck for guiding the towline.
Beechey Island X97. Polar Expedition Cruise and IAATO Operations: Historic Northwest Passage site in Nunavut containing graves of the Franklin Expedition crew, a key cultural landing in Arctic Canada.
Beef (Frozen, Boneless) X120. Marine Catering, Provisions and Ship Chandlers: USDA Choice grade typical for ship provisioning, IMPA section 55 frozen meats subsection.
Beef chilled carriage X26. Reefer Containers and Cold Chain Logistics: -1.5 C deep chill, vacuum-packed primal cuts, 60 to 120 day shelf life.
Beef frozen carriage X26. Reefer Containers and Cold Chain Logistics: -18 C or colder, blast-frozen, long-term storage stable.
Beef reefer carriage X70. Reefer Containers and Cold Chain Shipping: Chilled beef shipped at minus 1.5 to plus 1.5 degrees Celsius, frozen beef at minus 18 degrees Celsius or colder, often in vacuum or modified atmosphere packaging.
Beef, Frozen X1. Cargo Science, Commodities and Cargo Care: Reefer cargo at -18 C or colder.
Before Delivery Survey X115. Marine Bunker and Cargo Surveying: Opening leg of a bunker survey recording initial soundings, temperatures, and densities of both barge and vessel tanks.
Behavioral Analytics X48. Maritime Cybersecurity: Detection method that profiles normal user or device behavior on shipping company networks to surface insider or compromised account activity.
Behavioral Competency Assessment X40. Tanker Vetting, SIRE and VIQ: A SIRE 2.0 design feature in which the inspector evaluates how crew perform tasks, not only whether procedures exist on paper.
Behavioral Competency Assessment (SIRE 2.0) X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: The CHIRP-aligned observation framework in SIRE 2.0 where inspectors evaluate crew interactions, not just equipment status.
BeiDou X109. Maritime Autonomous Surface Ships and MASS Code: The Chinese global navigation satellite system, used as one of the constellations in a multi-GNSS receiver on autonomous vessels.
BeiDou Receiver X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Chinese GNSS receiver covered by IEC 61108-4.
BeiDou SAR Payload X95. GMDSS Equipment and Survival Craft Communications: Search and Rescue payload planned for BeiDou navigation satellites as China's MEOSAR contribution to Cospas-Sarsat.
Beihai Shipbuilding X29. Ship Sale and Purchase, Management Contracts and Valuation: Chinese yard, part of CSSC group.
Beihai Yard X113. Drydock and Ship Repair Yards: COSCO Shipping Heavy Industry repair and conversion facility in Guangxi, China, with deepwater berths and large drydocks.
Beijing Arbitration Commission X114. Maritime Arbitration and Shipping Law Firms: Mainland Chinese arbitration institution that administers commercial cases including some maritime matters.
Beijing Maritime Court X114. Maritime Arbitration and Shipping Law Firms: One of 11 maritime courts established in the People's Republic of China.
Beira deepening X124. Dredging Industry and Reclamation Contractors: Mozambique port channel project executed by Jan De Nul under World Bank funding.
Bekaert Bezinal X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Zinc-aluminium coating used by Bekaert on steel wire rope cores to improve corrosion resistance over plain galvanizing.
Belapur BP Marine Academy X121. Maritime Education, Academies and Universities: See BP Marine Academy.
Belarusian State Academy of Communications Maritime Department X121. Maritime Education, Academies and Universities: Continental program covering inland and short-sea navigation, headquartered in Minsk.
Belay X3. Ship Handling, Seamanship and Deck Vocabulary: Make a rope fast around a cleat or pin.
Belaying pin X3. Ship Handling, Seamanship and Deck Vocabulary: Removable wooden or metal pin in a rail for belaying running rigging.
Belco EGC X69. EGCS Scrubbers, SCR and Marine Air Emissions: Marine exhaust gas cleaning product line developed by Belco Technologies for shipboard SOx removal.
Belden iZK1 X107. Maritime Cybersecurity and OT Security: Industrial firewall product within the Belden security portfolio used in OT segmentation.
Belem X128. Sail Training Ships and Tall Ship Associations: French three masted barque built 1896 at Nantes, 58 m length, 1,200 sq m sail area, last surviving 19th century French merchant tall ship and an active French sail training vessel.
Belfast X39. Pre-1900 Maritime History: Irish shipbuilding port; Harland and Wolff was founded there in 1861.
Belgian Federal Bureau for the Investigation of Maritime Accidents (FOIMA) X163. Marine Accident Investigation Agencies and Landmark Inquiries: Independent Belgian federal body created in 2012 to investigate very serious and serious marine casualties involving Belgian-flag ships or occurring in Belgian waters.
Belgian Naval Component X77. Naval Mine Warfare and Mine Countermeasures: The maritime force of Belgium, operator of Tripartite-class minehunters and partner in the Belgian-Dutch rMCM program.
Belgian North Sea X42. Offshore Wind Installation and Cable Lay: Concession zone hosting projects including Northwind, Belwind, Nobelwind, Mermaid, and SeaMade.
Belgian Royal Academy of the Merchant Marine X55. Marine Simulators, Training and Maritime Academies: Hogere Zeevaartschool in Antwerp, Belgium, offering nautical and marine engineering degrees.
Belgian Royal Naval School X121. Maritime Education, Academies and Universities: Koninklijke Militaire School naval division in Brussels offering naval officer training distinct from the civilian Antwerp Maritime Academy.
Belgian Seamen's House X102. Seafarer Welfare and Maritime Charities: Antwerp-based seafarers' center offering accommodation and recreation under the Apostleship of the Sea tradition.
Belgian Ship Registry X98. Ship Registries and Flag States: National registry administered by the Federal Public Service Mobility and Transport.
Belgian-Dutch rMCM program X77. Naval Mine Warfare and Mine Countermeasures: A joint procurement led by Belgium Naval and Robotic Systems (Naval Group and ECA Group) to deliver twelve replacement mine countermeasures vessels from 2024 onward.
Belgica (RV) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Belgian Federal Science Policy Office research vessel commissioned in 2021, built by Freire Shipyard in Vigo, operated by RBINS for North Sea oceanographic and hydrographic work.
Belgium PSC X66. Port State Control and Regional MOUs: Paris MOU member State; PSC conducted by FOD Mobiliteit en Vervoer.
Belgrade Convention X33. Inland Navigation and Barge Operations: 1948 treaty establishing the Danube Commission and regime of free navigation on the Danube.
Belitung Wreck F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Ninth-century Arab dhow wreck found in Indonesia in 1998 with Tang dynasty cargo.
Belize X7. Flag State, Port State Control and Detention Vocabulary: Open registry administered by the International Merchant Marine Registry of Belize, IMMARBE.
Belize City X64. Cruise Industry Operators, Brands and Ships: Caribbean tendering port serving cruise calls on the Belize Barrier Reef itinerary.
Belize Pilot Station X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: Reference station off the South West Pass entrance to the Mississippi River used by Associated Branch Pilots for boarding operations.
Belize Ship Registry X98. Ship Registries and Flag States: Open registry administered by the International Merchant Marine Registry of Belize, IMMARBE.
Belknap class X11. Naval Vessels, Warship Systems and Naval Architecture: USN guided missile cruiser of the 1960s with Mk 10 launcher.
Bell X82. Saturation Diving and Offshore Diving Operations: Pressurized capsule transporting saturation divers between the system and worksite.
Bell 412 X80. Maritime Search and Rescue Coordination: Twin-engine utility helicopter used by several coast guards for SAR duties.
Bell Bay Powerfuels X140. Ammonia as Marine Fuel and Hydrogen Shipping: Origin Energy project in Tasmania for 420 ktpa green ammonia from hydro and wind power.
Bell book X19. Engine Room Watchkeeping and UMS Operations: Engine room log of telegraph orders received and acknowledged during maneuvering.
Bell Bounce X82. Saturation Diving and Offshore Diving Operations: Short-duration bell dive without entering full saturation, used for one-off deep tasks.
Bell Cursor X82. Saturation Diving and Offshore Diving Operations: Guide frame that constrains the bell during launch and recovery through the splash zone.
Bell Diver X82. Saturation Diving and Offshore Diving Operations: IMCA-qualified diver competent to lock out of a closed bell.
Bell Diver Trainee X82. Saturation Diving and Offshore Diving Operations: Provisional grade undergoing supervised closed-bell experience.
Bell Diving X14. Offshore Oil and Gas Marine Operations: Saturation diving deployment from a closed bell on a DSV.
Bell Handler X82. Saturation Diving and Offshore Diving Operations: Deck crew member operating winches during bell launch and recovery.
Bell Mating Clamp X82. Saturation Diving and Offshore Diving Operations: Hydraulic clamp securing the bell to the trunking flange.
Bell Pirelli OTEC X57. Ocean Energy Beyond Wind: Early ocean thermal energy conversion concepts associated with Alexander Graham Bell collaborators and later Italian engineering studies, often cited in OTEC history.
Bell Run X82. Saturation Diving and Offshore Diving Operations: Single excursion of the bell from the system to the worksite and back.
Bell Trunking X82. Saturation Diving and Offshore Diving Operations: Vertical tube connecting the bell mating flange to the saturation system.
Bell-Halter X132. High-Speed Craft, Hydrofoils and Ferry Operators: American SES design family from the 1980s that became the basis for the US Navy's SES-200 and several patrol craft.
Bell-mouth X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Flared suction inlet at the bottom of a bunker tank.
Bellary X92. Marine Steel Suppliers and Shipbuilding Plate: JSW Steel Vijayanagar works in Karnataka, India, the company's largest integrated steel plant.
Belle Poule X128. Sail Training Ships and Tall Ship Associations: French Navy two masted topsail schooner built 1932 at Fecamp, 37.5 m length, paired with sister ship Etoile for officer cadet training at Ecole Navale.
Bellerophon, HMS X39. Pre-1900 Maritime History: Third-rate ship of the line launched in 1786 aboard which Napoleon surrendered on July 15, 1815.
Belleville Locks and Dam X103. US Inland Waterway Towing and Barge: An Ohio River navigation structure in West Virginia.
Bellingham X85. Ferries, Ro-Pax Operators and Routes: Washington port serving as the southern terminus of the Alaska Marine Highway System mainline.
Bellingham Yard Records X50. Ship Recycling, Demolition and Hong Kong Convention: Historical American west coast recycling records sometimes referenced for legacy vessel due diligence.
Bellingshausen Station X133. Polar Research Vessels and Polar Code Regimes: Russian Antarctic Treaty station on King George Island, supported by Akademik Fedorov.
Bellman X82. Saturation Diving and Offshore Diving Operations: Standby diver inside the bell tending the working diver's umbilical.
Bellmouth X1. Cargo Science, Commodities and Cargo Care: Suction inlet in a tank, important to strip dry of parcels.
Bellows-Type Compressor X63. Marine Auxiliary Machinery and Pumps: Specialty compressor using metal bellows for leak-tight handling of refrigerants or process gases.
Belly Plate X103. US Inland Waterway Towing and Barge: The bottom shell plating of a hopper or tank barge.
Belly Strap X9. Cargo Securing, Lashing and Stability Vocabulary: Lashing passed around a heavy item, anchored on both sides.
Belomor Canal X33. Inland Navigation and Barge Operations: White Sea-Baltic Canal in Russia, opened 1933, linking the White Sea with Lake Onega.
Below Deck X75. IMDG Code, Classes, Packing and Segregation: Stowage location inside cargo holds, often required for Class 1, 7 and some Class 4.2 substances.
Below Decks Cutting X50. Ship Recycling, Demolition and Hong Kong Convention: Hot work performed inside the hull after fuel and oil residue removal, requiring gas-free certification under MEPC.197(62).
Below Waterline Survey X113. Drydock and Ship Repair Yards: External hull inspection covering plating, appendages, sea suctions, and the propeller, performed during drydock by class surveyors.
Below-deck lashing X76. Stevedoring, Lashing and Cargo Securing: Securing within cargo holds, typically relying on cell guides rather than rods and turnbuckles.
Below-the-Hook Lifting Device X104. Project Cargo Forwarders and Heavy Transport: Any rigging assembly attached between the crane hook and the load, governed by ASME B30.20.
Below-Tide Zone X28. Ship Recycling and End-of-Life: Intertidal area of a beaching yard where primary cuts are performed.
Belships Bunker Manager X72. Bunkering Hubs and Bunker Suppliers: In house bunker procurement team operated by Belships ASA for its dry bulk fleet.
Belt Conveyor X94. Port Machinery and Quay Equipment Makers: Continuous bulk-handling system used on shiploaders, shipunloaders, and yard transfer routes at dry-bulk terminals.
Belt-Driven Pump X63. Marine Auxiliary Machinery and Pumps: Pump connected to its driver through V-belts or flat belts, common on small auxiliary services.
Beluga F-Class B5. Ship Types and Individual Vessels: Heavy-lift project carrier (historic).
Beluga Fairy X81. Project Cargo, Heavy-Lift and Module Carriers: Former Beluga Shipping MPP heavy-lift vessel.
Beluga Fanfare X81. Project Cargo, Heavy-Lift and Module Carriers: Former Beluga Shipping multipurpose heavy-lift vessel.
Beluga Fascination X81. Project Cargo, Heavy-Lift and Module Carriers: Former Beluga Shipping multipurpose heavy-lift vessel.
Beluga Festival X81. Project Cargo, Heavy-Lift and Module Carriers: Former Beluga Shipping MPP heavy-lift vessel.
Beluga Foresight X81. Project Cargo, Heavy-Lift and Module Carriers: Former Beluga Shipping multipurpose heavy-lift vessel.
Beluga Formation X81. Project Cargo, Heavy-Lift and Module Carriers: Former Beluga Shipping MPP heavy-lift vessel.
Beluga Fusion X81. Project Cargo, Heavy-Lift and Module Carriers: Former Beluga Shipping multipurpose heavy-lift vessel.
Beluga P-Class X81. Project Cargo, Heavy-Lift and Module Carriers: Former Beluga Shipping P-series project carrier design.
Beluga Shipping X81. Project Cargo, Heavy-Lift and Module Carriers: Bremen-based heavy-lift operator declared insolvent in 2011 after an accounting scandal, with parts of its fleet reorganized into Hansa Heavy Lift.
Beluga whale X10. Marine Biology, Fisheries and Oceanography: *Delphinapterus leucas*, a small white toothed whale of Arctic and subarctic waters.
Belwind X42. Offshore Wind Installation and Cable Lay: Belgian offshore wind farm developed by Parkwind off the Bligh Bank.
Belzona X165. Marine Coatings, Antifouling, and Hull Husbandry: Manufacturer of solvent-free polymer repair composites used to rebuild eroded ballast tank steel, propeller pitting, and shell-plate damage.
Belzona repair compound B2. Marine Engineering: Cold polymer repair material used in marine engineering.
Bench mark X16. Nautical Science, Navigation and COLREGs: Permanent mark of known elevation used as a tidal datum reference.
Bench overhaul X61. Marine Lubricants and Cylinder Oils: Workshop reconditioning of components such as fuel pumps and injectors that depends in part on clean system oil during prior service.
Benchmark Route X44. Shipping Indices, FFAs and Freight Markets: Standardized voyage definition with fixed cargo, vessel size, and ports used by the Baltic Exchange to publish a consistent daily price.
Bend X3. Ship Handling, Seamanship and Deck Vocabulary: Knot used to join two ropes or a rope to a spar.
Bend (Knot) X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Knot used to join two ropes, such as the carrick bend or sheet bend used in seamanship for joining hawsers of unequal size.
Bend (seafloor) X10. Marine Biology, Fisheries and Oceanography: Localised topographic feature; in oceanography also refers to meander curvature in currents.
Bend angle X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Geometry of bunker hose lay that must avoid kinking during transfer.
Bend of cargo C1. Commercial shipping, chartering, economics and finance: Final installment of cargo loaded under a voyage charter.
Bend on X3. Ship Handling, Seamanship and Deck Vocabulary: Secure a sail to its spar or stay.
Bend Radius X104. Project Cargo Forwarders and Heavy Transport: Minimum curvature a wire rope or sling may follow without losing capacity.
Bend Restrictor X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Polymer or steel device fitted to flexible risers and umbilicals to limit local curvature and prevent overbending during installation and service.
Bend Stiffener X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Tapered polyurethane structure at the top of flexible flowlines and umbilicals that controls dynamic curvature at the hangoff.
Bending lever twistlock X76. Stevedoring, Lashing and Cargo Securing: Manual twistlock operated by a long swinging handle, largely superseded by semi-automatic designs.
Bending moment (longitudinal) B1. Naval Architecture: Internal moment along the ship girder from buoyancy/weight imbalance.
Bending moment (shaft) X38. Propellers, Stern Gear and Shaft Lines: Internal moment in the shaft line arising from propeller weight, hydrodynamic loads, and alignment offsets.
Bending Moment Diagram X96. Hull Integrity Monitoring and Strain Gauges: Plot of longitudinal bending moment along ship length used to interpret hull girder stress measurements.
Bending press, plate X58. Shipbuilding Yards and Construction: Hydraulic press used to cold-form heavy shell plates around dies to required curvature.
Bending radius X42. Offshore Wind Installation and Cable Lay: Minimum permissible curvature of a submarine cable during manufacture, loadout, lay, and operation.
Bending Strength X5. Marine Surveying and Inspection: Section property assessed against minimum class scantlings during gauging.
Bends X82. Saturation Diving and Offshore Diving Operations: Colloquial name for Type 1 decompression sickness affecting joints and skin.
Beneficial Owner X17. Chartering, Shipbroking and Freight Trading: Party with ultimate economic ownership of the vessel behind the registered owner.
Beneficial Owner Identification X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Critical step in abandonment cases to locate the responsible party for crew wages and repatriation.
Beneficial Ownership E1. Maritime security, geopolitics and risk: True natural-person ownership behind corporate vessel holding structures.
Beneficial reuse X15. Ports, Terminals and Stevedoring: productive use of dredged material for beach nourishment or land reclamation.
Benefit of Salvage X60. Marine Salvage and Wreck Removal: Increment of value preserved by salvor intervention, central to reward computation under Article 13.
Beneteau Group F4. Recreational Boating, Yachting and Sport: French production yacht builder, the world's largest by volume.
Benetti X35. Yacht and Superyacht Industry: Italian superyacht builder in Viareggio, founded 1873, part of the Azimut-Benetti Group.
Benetti Diamond X35. Yacht and Superyacht Industry: Long-running displacement series of full-custom and semi-custom motor yachts.
Benetti FB272 X125. Superyacht Industry, Builders and Brokers: Hull number for Luminosity, the 107.6 m hybrid diesel electric flagship delivered in 2020.
Benevolent Fund X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Generic name for charitable funds operated by unions and welfare bodies to assist seafarers in hardship.
Benguela Current D1. Physical and chemical oceanography and marine meteorology: Cold eastern boundary current along the southwest coast of Africa.
Benoi Yard X113. Drydock and Ship Repair Yards: Former Keppel Shipyard facility in Singapore now part of Seatrium, with multiple drydocks for offshore and tanker work.
Benthic X10. Marine Biology, Fisheries and Oceanography: Pertaining to the seafloor or organisms living on or in it.
Benthic Boundary Layer D2. Hydrography, tides, waves, bathymetry and marine geology: Near-bottom layer where bottom friction influences flow and sediment transport.
Benthic Community D3. Marine environmental science, pollution and conservation: Organisms inhabiting the seabed.
Benthic Habitat Mapping X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Classification of seabed substrate and biological cover from acoustic backscatter and ground-truth grabs, increasingly produced alongside hydrographic surveys.
Benthic Trawling D4. Fisheries, aquaculture, blue economy and marine resources: Bottom contact fishing with environmental concerns.
Benthos X10. Marine Biology, Fisheries and Oceanography: Community of organisms living on, in, or near the seabed.
Bentley MAXSURF B1. Naval Architecture: Commercial hull design and hydrostatics suite.
Bentley OpenShip X54. Naval Architecture Software and IACS Rules: Bentley Systems integrated ship design and analysis platform building on MicroStation and the MAXSURF family.
Bentleys Stokes and Lowless X114. Maritime Arbitration and Shipping Law Firms: London admiralty solicitors firm dating to the eighteenth century with a focused shipping practice.
Bently Nevada 3500 X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Rack-based vibration and condition monitoring system from Baker Hughes widely deployed on shipboard turbomachinery and main engine shaft lines.
Benzaldehyde X93. IBC Code and Chemical Tanker Operations: Aromatic aldehyde C6H5CHO historically classified under MARPOL Annex II among higher hazard liquids and subject to discharge controls.
Benzene X1. Cargo Science, Commodities and Cargo Care: IBC Category Y, toxic aromatic; vapor monitoring required.
Benzene Barge X103. US Inland Waterway Towing and Barge: An inland chemical tank barge carrying benzene, subject to vapor recovery and personnel exposure controls.
Benzodiazepine X36. Shipboard Medical, Telemedicine and Seafarer Health: Diazepam or midazolam stocked for seizure control under controlled-drug register.
Benzyl Chloride X75. IMDG Code, Classes, Packing and Segregation: UN 1738, Class 6.1 with Class 8 subsidiary risk, Packing Group II.
Berenberg X49. Ship Finance, Leasing and Maritime Capital Markets: German private bank that has acted as bookrunner on selected shipping equity and bond issues.
BERESCO inquiry (Amoco Cadiz) X163. Marine Accident Investigation Agencies and Landmark Inquiries: Liberian Board of Investigation convened after the Amoco Cadiz casualty that examined the failure of the steering gear and the conduct of the master and salvage tug.
Berg MTA 627 X137. Harbour Tugs, Towage Operators and Tug Builders: Mechanical thruster azimuth unit commonly fitted to mid-size ASD tugs.
Berg Propulsion X38. Propellers, Stern Gear and Shaft Lines: Swedish manufacturer of controllable pitch propellers, transverse thrusters, and propulsion control systems, owned by Caterpillar.
Bergamini-class X62. Naval Warships and Combat Systems: Italian Navy general-purpose variant of the FREMM frigate, led by Carlo Bergamini (F590).
Bergamini-class frigate X106. Naval Surface Combatants: Italian Navy designation for FREMM multi-mission frigates, ten ships in service with Marina Militare.
Berge Istra (1975) X12. Maritime Casualties and Investigation: Ore-oil carrier lost without trace off the Philippines on 30 December 1975 with two survivors.
Berge Sisar, The [2001] UKHL 17 X143. Landmark Maritime Law Cases and Doctrines: House of Lords interpreted the Carriage of Goods by Sea Act 1992.
Berge Vanga (1979) X12. Maritime Casualties and Investigation: Sister to Berge Istra, vanished in the South Atlantic in October 1979 with all 40 hands.
Bergen X64. Cruise Industry Operators, Brands and Ships: Norwegian port serving as a key call on Norwegian fjord itineraries and the Hurtigruten coastal route.
Bergen Group X124. Dredging Industry and Reclamation Contractors: Norwegian builder of small workboats used in dredging support.
Bergen Skoltegrunnskaien X164. Cruise Industry, Brands, Ship Classes, and Terminals: The principal deep-water cruise quay in Bergen, Norway, the gateway to Norwegian fjord itineraries.
Berger Marine X45. Marine Paints, Coatings and Antifouling: Marine coatings brand operated by Berger Paints, with significant presence in Indian shipyards and Asian markets.
Bergeron Process D1. Physical and chemical oceanography and marine meteorology: Ice crystal growth mechanism in mixed-phase clouds important to precipitation.
Bergy bit X27. Polar Code, Ice Navigation and Polar Operations: Piece of glacier ice between 1 and 5 m above sea level and 100 to 300 sq m in area.
Bergy water X27. Polar Code, Ice Navigation and Polar Operations: Open water with floating bergy bits and growlers but no sea ice present.
Bering Sea X10. Marine Biology, Fisheries and Oceanography: Marginal sea between Alaska and Siberia, hosting major pollock and crab fisheries.
Bering Sea Pollock Fishery X87. Fishing Vessels and Fisheries Management: US managed cooperative groundfish fishery, the largest US fishery by landings.
Bering Strait X10. Marine Biology, Fisheries and Oceanography: Narrow passage connecting the Pacific and the Arctic Ocean between Russia and Alaska.
Bering Strait Voluntary Two-Way Route X27. Polar Code, Ice Navigation and Polar Operations: IMO-adopted voluntary routeing measure (2018) establishing two-way routes and ATBAs.
Bering Yachts X125. Superyacht Industry, Builders and Brokers: Antalya, Turkey explorer yacht builder founded by Alexei Mikhailov.