Glossary

Maritime glossary, terms beginning with B (page 8)

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

Showing 250 of 2894 terms (page 8 of 12).

Bollard pull C4. Ports, terminals and coastal/marine civil engineering: Tug pulling force in tonnes.
Bollard Pull (BP) X30. Tug Operations and Harbour Towage: Static pulling force a tug can exert on a stationary load, measured in tonnes.
Bollard pull (icebreaker) X27. Polar Code, Ice Navigation and Polar Operations: Static towing pull; used to size icebreakers for assistance and escort.
Bollard pull (towboat) X166. Inland Waterways, Ferries, RoRo, and Short Sea Shipping: The static pull of a Mississippi towboat measured in pounds or tonnes, with mainline boats typically exceeding 100 tonnes bollard pull.
Bollard Pull Certificate X79. Tugs and Towage Industry: Class society document recording the result of a witnessed bollard pull trial.
Bollard Pull Trial X79. Tugs and Towage Industry: Controlled test in which a tug pulls against a load cell anchored to a quayside bollard.
Bollinger Amelia X113. Drydock and Ship Repair Yards: Louisiana shipyard within the Bollinger network serving offshore supply vessel construction and repair.
Bollinger Houma X113. Drydock and Ship Repair Yards: Bollinger Shipyards facility in Houma, Louisiana, providing aluminum and steel newbuilds and repair on the Intracoastal Waterway.
Bollinger Larose X113. Drydock and Ship Repair Yards: Bollinger drydocking facility in Lafourche Parish, Louisiana, supporting workboats and offshore service vessels.
Bollinger Lockport X113. Drydock and Ship Repair Yards: Bollinger Shipyards headquarters and yard at Lockport, Louisiana, with floating drydocks and a marine railway.
Bollinger Mississippi X113. Drydock and Ship Repair Yards: Former VT Halter Marine facilities in Pascagoula and Moss Point acquired by Bollinger in 2022.
Bollinger Shipyards X58. Shipbuilding Yards and Construction: Louisiana-based US builder of patrol craft, OPCs for the Coast Guard, and offshore vessels.
Bollore Logistics X104. Project Cargo Forwarders and Heavy Transport: French forwarder rebranded as CMA CGM Logistics after the 2024 acquisition.
Bollore Ports X138. Global Container Terminal Operators and Port Equipment: African terminal operator divested to MSC subsidiary Africa Global Logistics for 5.7 billion euros in completed transaction December 2022.
Bolster X75. IMDG Code, Classes, Packing and Segregation: Container support structure on flat racks that must accommodate proper IMDG securing of dangerous goods.
Bolt rope X3. Ship Handling, Seamanship and Deck Vocabulary: Rope sewn into the edge of a sail.
Bolt-On Anode X100. Marine Cathodic Protection and Anodes: A sacrificial anode mechanically attached to the structure with bolts or studs rather than welded.
Boluda France X137. Harbour Tugs, Towage Operators and Tug Builders: French arm of Boluda Towage formed from the Les Abeilles harbour business acquisition in 2018.
Boluda Methanol Tug 2024 X30. Tug Operations and Harbour Towage: Boluda methanol-fueled harbor tug introduction announced for 2024 operations.
Boluda Towage X30. Tug Operations and Harbour Towage: International towage group based in Valencia, Spain, active in Europe, West Africa, the Americas, and the Middle East.
Bomb calorimetry X47. Marine Fuel Quality and ISO 8217: Measurement of gross calorific value by combustion in an oxygen-pressurized bomb per ASTM D240 or ISO 1928.
Bomb Cart X169. Container Terminal Cranes, Yard Equipment, and Lashing: Low-deck terminal trailer used to shuttle containers between STS cranes and yard cranes, also called a cassette or shuttle trailer.
Bomb Smoke Non Explosive X75. IMDG Code, Classes, Packing and Segregation: UN 2028, Class 8 corrosive solid, despite the word bomb.
Bomb Vessel X39. Pre-1900 Maritime History: A small naval ship mounting one or two heavy mortars for shore bombardment, developed by the French in the 1680s.
Bombarda F1. Maritime History: Mediterranean two-masted vessel adapted from bomb ketches.
Bombardier Q400 X80. Maritime Search and Rescue Coordination: Twin-engine turboprop operated by the Canadian Coast Guard for maritime surveillance and SAR.
Bombay Port Trust Marine Engineering Training X121. Maritime Education, Academies and Universities: Historical apprenticeship program preceding the formal maritime institutes in Mumbai, now subsumed under modern DGS-approved schools.
Bombcart X46. Container Terminal Operations: A heavy-duty terminal trailer with a low-deck cargo bed used to shuttle containers between quay cranes and the stacking yard.
Bombora Wave Power X57. Ocean Energy Beyond Wind: Australian wave energy developer of the mWave membrane converter, with project pipelines in Wales and Spain.
Bomin X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: Marquard and Bahls subsidiary, historically a top-10 physical bunker supplier, wound down its global activities outside Hamburg and Houston by 2020.
Bomin Bunkering X72. Bunkering Hubs and Bunker Suppliers: German bunker supplier originally part of Marquard and Bahls, now part of the Mabanaft group with desks in Hamburg, Singapore, and Houston.
Bomin Greece X72. Bunkering Hubs and Bunker Suppliers: Subsidiary of Bomin serving Piraeus and Eleusis bay bunker calls.
Bomin Linde LNG X72. Bunkering Hubs and Bunker Suppliers: Joint venture formed in 2012 between Bomin and Linde Group to develop LNG bunkering in northern Europe, dissolved in 2018.
Bon Voyage System (BVS) X78. Voyage Optimization and Vessel Performance Software: A long established PC based weather routing and voyage optimization product, currently offered by StormGeo following multiple changes of ownership.
Bonanza Express X132. High-Speed Craft, Hydrofoils and Ferry Operators: Incat 81 m wave-piercer operated by Fred Olsen Express on the Canary Islands inter-island routes.
Bonaventure Mizzen X39. Pre-1900 Maritime History: A small fourth mast aft of the main mizzen used in sixteenth-century galleons.
Bond Dickinson X114. Maritime Arbitration and Shipping Law Firms: Predecessor firm to Womble Bond Dickinson, with a Newcastle shipping practice.
Bond Indenture X49. Ship Finance, Leasing and Maritime Capital Markets: Contract governing the rights of bondholders in a shipping bond issuance.
Bond Locker Seal X86. Port Agency, Husbandry and Disbursement: Customs seal on the vessel's bonded store, broken and resealed under agency supervision.
Bond of Friendship X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Common scheme name used by missions for befriending isolated crew through correspondence or visits.
Bond Tap X49. Ship Finance, Leasing and Maritime Capital Markets: Additional issuance under an existing bond indenture, common in the Nordic high yield market.
Bond Trustee X49. Ship Finance, Leasing and Maritime Capital Markets: Entity such as Nordic Trustee that represents bondholders in Norwegian shipping bonds.
Bond Yachts X125. Superyacht Industry, Builders and Brokers: Hong Kong brokerage focused on Asian buyers.
Bond, Average X157. Marine Loss Adjusters, GA Practice, and Casualty Firms: See Average Bond.
Bonded Bunker Fuel X72. Bunkering Hubs and Bunker Suppliers: Fuel delivered to a foreign going vessel under customs bond and therefore free of domestic fuel duty.
Bonded Bunker License Zhoushan X72. Bunkering Hubs and Bunker Suppliers: Authorization granted under the Zhoushan Bonded Bunker Free Trade Zone framework allowing duty free supply to international vessels.
Bonded Cargo X1. Cargo Science, Commodities and Cargo Care: Goods stowed under customs seal pending duty payment.
Bonded Cargo Residues X28. Ship Recycling and End-of-Life: Customs-controlled residues that must be discharged before delivery to the recycling yard.
Bonded Connectivity X68. Maritime Satcom and Telecommunications: Combining multiple satellite or cellular links into a single logical pipe for higher throughput and resilience.
Bonded joint X42. Offshore Wind Installation and Cable Lay: Submarine cable joint where outer sheath, armor, and insulation are continuously rebuilt to match the cable cross section.
Bonded port area C4. Ports, terminals and coastal/marine civil engineering: Port area under customs control.
Bonded Store Survey X86. Port Agency, Husbandry and Disbursement: Customs verification of bonded inventory carried out alongside the agent.
Bonded Stores X86. Port Agency, Husbandry and Disbursement: Tobacco, liquor, and similar items held under customs control, replenished by the agent's chandler.
Bonded Stores Inventory X155. Marine Surveying Practice and Cargo Inspection: A condition-survey appendix recording the master's declaration of duty-free stores, ranged separately from owner's bunkers and lubricants.
Bonded warehouse C3. Logistics, freight forwarding and multimodal trade: Customs bonded storage facility.
Bonded Warehouse and Free Trade Zone Conference X119. Maritime Conferences, Trade Shows and Awards: Annual port logistics gathering rotating among free zones in the Middle East.
Bonded Warehouse Procedures X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Customs procedures referenced in the IMDG Code 7.1 stowage planning when goods transit ports without entering free circulation.
Bonding Cable X100. Marine Cathodic Protection and Anodes: A conductor that electrically connects isolated metallic items to the cathodic protection network so they share the same potential.
Bonding Strap X67. Marine Electrical Systems and Shore Power: Low-impedance conductor that ties metallic equipment to the ship hull for safety grounding.
Bongo net X10. Marine Biology, Fisheries and Oceanography: Paired plankton nets on a single frame used to collect quantitative zooplankton samples.
Bonifacio Strait PSSA X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: The Particularly Sensitive Sea Area between Corsica and Sardinia, designated by MEPC.204(62) in 2011.
Boning Knife X120. Marine Catering, Provisions and Ship Chandlers: IMPA 172217 stainless steel galley knife, 15 cm blade, standard issue.
Bonita Banana X136. Reefer Vessels and Cool Chain Operators: Ecuadorian banana brand of Reybanpac, part of Favorita Fruit Company, exported on chartered reefer container services to Europe and the Middle East.
Bonito X10. Marine Biology, Fisheries and Oceanography: Medium-sized tuna-like fishes of the genus *Sarda*.
Bonjean curves B1. Naval Architecture: Sectional area versus draft used in hydrostatic calculations.
Bonn Agreement D3. Marine environmental science, pollution and conservation: North Sea cooperation on pollution preparedness and response.
Bonn Convention (CMS) D3. Marine environmental science, pollution and conservation: Convention on the Conservation of Migratory Species of Wild Animals.
Bonny Express X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Pipeline-laying vessel operated by Saipem, used in the Caspian and Mediterranean for medium-diameter S-lay work.
Bonny Light bunker X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: West African distillate blendstock occasionally bunkered ex-Lagos but rarely used as a marine fuel due to spec drift.
Bonus (SCOPIC Clause 7) X99. Marine Salvage Awards and SCOPIC: Twenty-five percent uplift on the Article 13 award where SCOPIC is invoked but the Article 13 award exceeds the SCOPIC entitlement.
BonVoyage System X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: StormGeo BVS voyage optimization platform integrating weather, currents, and vessel performance models.
Book Equity X49. Ship Finance, Leasing and Maritime Capital Markets: Accounting equity of a shipping company, often divergent from market net asset value.
Booking confirmation C3. Logistics, freight forwarding and multimodal trade: Carrier confirmation of liner space booking.
Booking Note A5. Maritime Law, private and commercial: Preliminary contract for cargo space, often replaced by a bill of lading.
Booking number X15. Ports, Terminals and Stevedoring: carrier-assigned reference for a container shipment.
Booking Window X40. Tanker Vetting, SIRE and VIQ: The interval within which an operator must accept and schedule a SIRE inspection after the request is raised by a Submitting Member.
Bookrunner X49. Ship Finance, Leasing and Maritime Capital Markets: Investment bank that builds the order book on a shipping bond or equity offering.
Boom F4. Recreational Boating, Yachting and Sport: Spar extending the foot of a sail.
Boom Catenary X126. Marine Oil Spill Response and OPRC Regimes: Curved deployment shape of a boom under current, with U, J, and V configurations governing collection efficiency.
Boom dredger X124. Dredging Industry and Reclamation Contractors: Generic term for cutter or backhoe machines with extending arm.
Boom Failure Modes X126. Marine Oil Spill Response and OPRC Regimes: Entrainment, drainage, splash-over, planing, submergence, and structural collapse, the six classical loss mechanisms.
Boom Hoist X94. Port Machinery and Quay Equipment Makers: Mechanism on an STS crane that raises the seaward boom to vertical when not working to allow vessel passage.
Boom Latch X169. Container Terminal Cranes, Yard Equipment, and Lashing: Mechanical lock that holds the STS boom in the raised position, engaged during storms or when vessels pass below.
Boom lock X15. Ports, Terminals and Stevedoring: mechanical device securing the STS boom in the raised position.
Boom rest X42. Offshore Wind Installation and Cable Lay: Cradle on a heavy lift vessel that supports the crane boom when stowed for transit.
Boom Suspension X104. Project Cargo Forwarders and Heavy Transport: Cable or strut system holding the boom at its working angle on a lattice crane.
Boom Vane X60. Marine Salvage and Wreck Removal: Towed paravane that holds a single point recovery boom in a J or U configuration during sweeping operations.
Boom Vang X84. Yacht Racing, Regattas and Sailing Governance: A tackle or hydraulic strut that controls the boom's vertical position and thus mainsail twist.
Boomer E2. Naval, defence and maritime law enforcement: Slang for SSBN.
Booming Test X115. Marine Bunker and Cargo Surveying: Pre-transfer verification that oil spill containment booms are deployed and functional in regions where required by local regulation.
Booms X127. Maritime Security, Anti-Piracy and PMSCs: Steel or concertina-wire barriers rigged at choke points on deck to deny pirate access, recommended hardening under BMP5.
Boomstick X126. Marine Oil Spill Response and OPRC Regimes: Lightweight fire-resistant boom by Applied Fabric Technologies for shoreline ISB operations.
Boost Charging X67. Marine Electrical Systems and Shore Power: Higher-rate battery charge profile used to bring a depleted bank quickly back to operational state of charge.
Boost Pump X63. Marine Auxiliary Machinery and Pumps: Auxiliary pump raising suction pressure to a main pump or fuel injection system.
Booster Explosives X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Class 1 articles such as UN 0042 boosters without detonator, generally Division 1.1D, requiring magazine stowage.
Booster Fan X69. EGCS Scrubbers, SCR and Marine Air Emissions: Induced-draft fan installed to overcome scrubber back-pressure losses.
Booster module X19. Engine Room Watchkeeping and UMS Operations: Skid combining fuel pumps, heaters, filters, and viscometer supplying main engine at injection pressure.
Booster pump X19. Engine Room Watchkeeping and UMS Operations: Pump raising fuel system pressure ahead of supply or circulation pumps.
Booster Pump Test X5. Marine Surveying and Inspection: Verification of cargo pump performance during pre-loading or pre-discharge surveys.
Booster station X175. Port Engineering, Dredging, Breakwaters, and Quays: Inline pumping unit installed on a dredger discharge pipeline to extend pumping distance when transporting slurry from cutter or hopper to placement site.
Booster vaccination X36. Shipboard Medical, Telemedicine and Seafarer Health: Tetanus-diphtheria every 10 years and other intervals per WHO and flag-state schedules.
Booster Without Detonator X75. IMDG Code, Classes, Packing and Segregation: UN 0042, Class 1.1D explosive used to increase detonation.
Boot Dusseldorf X35. Yacht and Superyacht Industry: Annual January boat show in Dusseldorf, one of the largest indoor marine shows in the world.
Boot Integrity X148. Maritime Cybersecurity, IACS Cyber Rules, and Incidents: The verification of firmware and operating system load on ECDIS, GMDSS, and IBS components, addressed by UEFI Secure Boot or vendor-specific equivalents.
Boot Sector Malware X48. Maritime Cybersecurity: Code that infects the master boot record or equivalent on a shipboard PC and executes before the operating system loads.
Boot top X45. Marine Paints, Coatings and Antifouling: Painted band at the waterline that lies alternately above and below water depending on draft and trim.
Boot Wash X97. Polar Expedition Cruise and IAATO Operations: Disinfection station for muck boots required between landings under IAATO and AECO biosecurity standards.
Boot-topping X58. Shipbuilding Yards and Construction: Coating zone between light and load waterlines, painted with specific antifouling system.
Boots and Coots X126. Marine Oil Spill Response and OPRC Regimes: Halliburton-owned well control specialist, one of the two primary IWCF Tier 3 capping responders globally.
BOP X14. Offshore Oil and Gas Marine Operations: Blowout preventer; stack of rams and annulars sealing the wellhead in emergencies.
Bop Control Pod X14. Offshore Oil and Gas Marine Operations: Subsea hydraulic/electrical pod operating BOP functions; usually blue and yellow redundant.
BOP Test Stump X14. Offshore Oil and Gas Marine Operations: Surface fixture for pressure testing BOP components.
BOR X56. LNG/LPG Carriers and IGC Code: Standard abbreviation for boil-off rate used in LNG carrier specifications and charter party terms.
Borchard Lines X166. Inland Waterways, Ferries, RoRo, and Short Sea Shipping: The Hamburg-based short sea container operator providing weekly fixed-day services between North Europe, the East Mediterranean, and Israel.
Bordereau X53. Marine Insurance, P&I and Hull Clauses: A schedule of risks or claims provided periodically by a coverholder, broker, or reinsured to the underwriter.
Bore X81. Project Cargo, Heavy-Lift and Module Carriers: Finnish ro-ro and short-sea operator owned by Spliethoff group.
Bore Cooling X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Cylinder liner upper-belt cooling channels drilled axially through the collar to maintain controlled liner wall temperature and avoid cold corrosion.
Bore designation (MAN four-stroke) X90. Marine Engine Specific Model Enumeration: Numeric pair in MAN medium-speed model names denoting cylinder bore over stroke in centimeters, such as 32/44 or 51/60.
Bore designation (MAN two-stroke) X90. Marine Engine Specific Model Enumeration: Number in MAN two-stroke model names indicating cylinder bore in centimeters, such as the 95 in G95ME-C.
Bore polishing X61. Marine Lubricants and Cylinder Oils: Mirror-smooth wear pattern on a cylinder liner that reduces oil retention and accelerates ring wear.
Boreal X10. Marine Biology, Fisheries and Oceanography: Pertaining to high-latitude northern temperate regions.
Borealis Plant X104. Project Cargo Forwarders and Heavy Transport: Petrochemical complex of the Borealis group, an example consignee of polyethylene reactor modules.
Boreas X123. Offshore Wind Installation Vessels and Operators: Van Oord WTIV ordered 2022 from Yantai CIMC Raffles, methanol dual-fuel ready, 3,200 t leg-encircling crane, scheduled 2025 delivery.
Borei class X11. Naval Vessels, Warship Systems and Naval Architecture: Russian Project 955 SSBN carrying RSM-56 Bulava.
Borescope X59. Offshore Wind O&M, CTVs and SOVs: Flexible optical probe used by service technicians to inspect gearbox internals through a small access port without disassembly.
Boric Acid X1. Cargo Science, Commodities and Cargo Care: Group C IMSBC bulk; mildly toxic powder.
Boring bar (stern tube) X38. Propellers, Stern Gear and Shaft Lines: Long-line boring tool used to machine stern-tube and strut bores in single setup for concentricity.
Borkum Riffgrund 1 X105. Offshore Wind Farm Installation and Vessels: 312 MW German North Sea wind farm developed by Ørsted and commissioned in 2015.
Borkum Riffgrund 2 X105. Offshore Wind Farm Installation and Vessels: 450 MW German offshore wind farm developed by Ørsted and commissioned in 2019, notable for the first commercial suction bucket jacket.
Borkum Riffgrund 3 X123. Offshore Wind Installation Vessels and Operators: 913 MW Orsted project under construction, Siemens Gamesa SG 11.0-200 DD turbines, first German zero-subsidy tender win.
Borkumriff X124. Dredging Industry and Reclamation Contractors: German North Sea sand-bank near Eemshaven, source of beach nourishment material.
Borlange X92. Marine Steel Suppliers and Shipbuilding Plate: SSAB cold rolling and coating site in Sweden serving the European automotive market.
Bornemann X63. Marine Auxiliary Machinery and Pumps: German manufacturer (now part of ITT) of twin-screw pumps for crude oil and viscous duty.
Bornemann SLH X63. Marine Auxiliary Machinery and Pumps: Twin-screw pump series used as cargo and stripping pump on chemical tankers.
Bornemann W X63. Marine Auxiliary Machinery and Pumps: Twin-screw multiphase pump range used in offshore service.
Bornholm X85. Ferries, Ro-Pax Operators and Routes: Danish Baltic island served by Bornholmslinjen ferries from Ronne to Ystad and Koge.
Bornholmerfaergen X166. Inland Waterways, Ferries, RoRo, and Short Sea Shipping: Former Danish ferry operator serving Bornholm island, since absorbed by Molslinjen which runs the route under contract.
Bornholmslinjen X85. Ferries, Ro-Pax Operators and Routes: Danish ferry brand operating Ronne to Ystad and Ronne to Koge under Molslinjen ownership.
Borr Drilling X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Bermuda-headquartered modern jackup specialist founded in 2016 with a fleet of premium benign-environment jackups.
Borrow area X124. Dredging Industry and Reclamation Contractors: Designated offshore zone from which fill sand is extracted for reclamation, with environmental impact assessment required.
Borrowing Base Facility X49. Ship Finance, Leasing and Maritime Capital Markets: Revolving facility sized to a formula based on eligible vessels and receivables.
Borssele X42. Offshore Wind Installation and Cable Lay: Dutch offshore wind zone containing Borssele I and II (Orsted), III and IV (Blauwwind consortium), and V (innovation site).
Borssele 1+2 X105. Offshore Wind Farm Installation and Vessels: 752 MW Dutch offshore wind farm developed by Ørsted and commissioned in 2020.
Borssele 3+4 X105. Offshore Wind Farm Installation and Vessels: 731.5 MW Dutch offshore wind farm developed by Blauwwind consortium (Shell, Eneco, and partners) commissioned in 2021.
Borssele 5 X105. Offshore Wind Farm Installation and Vessels: Innovation site adjoining the Borssele zone in the Dutch North Sea hosting demonstration turbine projects.
Borssele I and II X123. Offshore Wind Installation Vessels and Operators: 752 MW Dutch wind farm commissioned 2020, Orsted operated, 94 Siemens SWT-8.0-167 turbines on monopile foundations.
Borssele III and IV X123. Offshore Wind Installation Vessels and Operators: 731.5 MW Dutch wind farm operated by Blauwwind consortium led by Shell, MHI Vestas V164-9.5 turbines.
Borssele V X123. Offshore Wind Installation Vessels and Operators: 19 MW innovation site adjacent to III/IV, operated by Two Towers consortium, includes Slip Joint connection trial.
Bos'n's chair X3. Ship Handling, Seamanship and Deck Vocabulary: Plank suspended by ropes for working aloft.
BOSIET X14. Offshore Oil and Gas Marine Operations: Basic Offshore Safety Induction and Emergency Training; OPITO standard.
Boskalis X13. Marine Salvage and Wreck Removal: Dutch dredging and salvage major, parent of SMIT Salvage since 2010.
Boskalis Africa X124. Dredging Industry and Reclamation Contractors: Boskalis TSHD of 20,000 m3 capacity.
Boskalis Atlas X124. Dredging Industry and Reclamation Contractors: TSHD of 18,000 m3 hopper capacity.
Boskalis Heavy Lift X60. Marine Salvage and Wreck Removal: Boskalis business line operating semi-submersible heavy transport and lift assets including White Marlin.
Boskalis Heavy Marine Services X81. Project Cargo, Heavy-Lift and Module Carriers: Boskalis division operating the legacy Dockwise semi-submersible heavy-transport fleet.
Boskalis Salvage X60. Marine Salvage and Wreck Removal: Salvage division of Boskalis operating under the Smit Salvage brand from Rotterdam.
Boskalis Singapore X124. Dredging Industry and Reclamation Contractors: TSHD of 12,000 m3 used in South-East Asian harbors.
Boskalis Smit Salvage X99. Marine Salvage Awards and SCOPIC: Combined salvage division of Royal Boskalis Westminster offering global emergency response.
Boskalis Subsea Cables X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Cable-installation arm of Royal Boskalis Westminster providing inter-array and export cable installation for offshore wind projects.
Boskalis Subsea Services X82. Saturation Diving and Offshore Diving Operations: Dutch subsea contractor operating BOKA-class DSVs.
Bosphorus Pilots X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: Turkish Directorate-General of Coastal Safety pilots advising vessels through the Istanbul Strait under TDI authority.
Bosphorus Strait E1. Maritime security, geopolitics and risk: Turkish-controlled strait governed by the Montreux Convention.
Boss-back Anchor X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Pool TW-type anchor whose enlarged tripping palms ensure rapid fluke engagement on hard seabeds.
Bossing B1. Naval Architecture: Faired housing around shaft exit on twin-screw vessels.
Boston Engineering X65. ROVs, AUVs, USVs and Marine Robotics: US engineering company that developed the BIOSwimmer biomimetic AUV under a Department of Homeland Security program.
Boston Tea Party X39. Pre-1900 Maritime History: Colonial protest of December 16, 1773 in which East India Company tea was dumped from three ships into Boston Harbor.
Bosun X21. STCW Certificates, Crewing and Seafarer Welfare: Boatswain, senior deck rating supervising able seafarers and ordinary seamen.
Bosun's Store X66. Port State Control and Regional MOUs: Inspected for compliance with 02000 structural conditions and tools.
Both ends C1. Commercial shipping, chartering, economics and finance: Laytime allowance applicable at both loading and discharging ports.
Both-to-Blame Collision Clause X4. Marine Insurance, P&I and Claims: bill of lading clause obliging cargo to indemnify the carrying ship against cargo liability paid by the non-carrying ship and recovered from the carrier under US law.
Botnet X48. Maritime Cybersecurity: Network of compromised hosts controlled remotely, occasionally implicating poorly secured maritime IoT and satcom routers.
Bottle Bank X82. Saturation Diving and Offshore Diving Operations: Manifolded array of high-pressure gas cylinders feeding the system.
Bottle Pressurized X75. IMDG Code, Classes, Packing and Segregation: Generic shipping term for IMDG pressure receptacles per ISO 11118 or UN cylinders.
Bottle screw X3. Ship Handling, Seamanship and Deck Vocabulary: Turnbuckle for tensioning standing rigging.
Bottle Service Sanitation X41. Cruise Ship Public Health and VSP/USPH: Procedures governing handling of capped beverage containers in passenger areas, including ice and glass contact rules.
Bottled Water (Provisions) X120. Marine Catering, Provisions and Ship Chandlers: IMPA 551641 mineral water, 1.5 L PET, standard pallet quantity 720 bottles.
Bottom block X58. Shipbuilding Yards and Construction: Double-bottom section forming the lower hull including inner bottom, floors, and girders.
Bottom Damage X13. Marine Salvage and Wreck Removal: Hull breach below the waterline, primary cause of foundering and salvage entry.
Bottom door X124. Dredging Industry and Reclamation Contractors: Hopper hull opening, hydraulically actuated, used for dumping sediment at sea.
Bottom Echo D2. Hydrography, tides, waves, bathymetry and marine geology: Acoustic return from the seabed used in echo sounding.
Bottom end bearing X61. Marine Lubricants and Cylinder Oils: Connecting rod big-end bearing supplied with system oil under pressure in a four-stroke or crosshead engine.
Bottom fouling X34. Decarbonization, Alternative Fuels and Carbon Pricing: Marine growth on the hull that increases frictional resistance and fuel consumption.
Bottom Inspection X29. Ship Sale and Purchase, Management Contracts and Valuation: Examination of underwater hull, in drydock or by divers.
Bottom Longline D4. Fisheries, aquaculture, blue economy and marine resources: Static fishing line set on the seabed.
Bottom Longliner X87. Fishing Vessels and Fisheries Management: Vessel deploying weighted mainlines along the seabed for demersal species such as cod, haddock, and halibut.
Bottom mine X77. Naval Mine Warfare and Mine Countermeasures: A sea mine that rests on the seabed and is generally fired by influence sensors rather than contact horns.
Bottom paint X165. Marine Coatings, Antifouling, and Hull Husbandry: General term for antifouling applied below the waterline.
Bottom Plate Recycling X118. Ship Recycling Yards, Beaches and Regulation: Final cutting stage at Alang where the keel plates and double bottom are dismantled after upper structure removal, often after re-floating.
Bottom Plate Strain Gauge X96. Hull Integrity Monitoring and Strain Gauges: Strain gauge bonded to bottom shell plating to capture loads from bottom slamming and whipping.
Bottom Plug X5. Marine Surveying and Inspection: Removable plug giving access to bottom plating; not common on modern vessels but inspected when present.
Bottom sample X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Sample drawn from the lowest accessible point of a tank.
Bottom Sediment and Water (BS&W) X155. Marine Surveying Practice and Cargo Inspection: The non-hydrocarbon component of an oil cargo, measured by laboratory centrifuge or Karl Fischer titration and deducted to derive the net standard volume.
Bottom Side Rail X83. ISO Container Manufacturing and Leasing: Lower longitudinal frame member of a container.
Bottom Slamming X96. Hull Integrity Monitoring and Strain Gauges: Impact of the flat bottom against the sea surface when the forward portion emerges and re-enters during heavy pitching.
Bottom Stacker X169. Container Terminal Cranes, Yard Equipment, and Lashing: Lashing fitting placed in the bottom corner casting of the lowest container of a deck stack, sometimes called a stacking cone.
Bottom Stow X1. Cargo Science, Commodities and Cargo Care: Cargo placed at tank-top level, generally heavier or wet-tolerant.
Bottom Stress D2. Hydrography, tides, waves, bathymetry and marine geology: Tangential force exerted by water on the seabed.
Bottom Survey X5. Marine Surveying and Inspection: External examination of underwater hull, traditionally in drydock; may be IWS where approved.
Bottom Survey in Lieu of Drydocking X43. Marine Surveying and Warranty Surveying: An underwater inspection by approved divers using high-resolution video to substitute for an intermediate drydocking under class rules.
Bottom tension X122. Submarine Cable Laying, Repair Vessels and Operators: Force in the cable at the seabed touchdown point during lay operations, controlled via ship speed, cable engine pay-out and payout angle.
Bottom Time X82. Saturation Diving and Offshore Diving Operations: Elapsed time from leaving the surface until commencing ascent.
Bottom Timer X82. Saturation Diving and Offshore Diving Operations: Mechanical or electronic device recording elapsed bottom time.
Bottom trawl X10. Marine Biology, Fisheries and Oceanography: Towed conical net fished in contact with the seabed for demersal species.
Bottom Trawler X87. Fishing Vessels and Fisheries Management: Vessel towing a trawl in contact with the seabed for demersal species.
Bottom Up Stowage (Class 1) X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Stowage requirement for explosives where heavier packages are placed below lighter packages to prevent crushing of detonators.
Bottom Water D2. Hydrography, tides, waves, bathymetry and marine geology: Water occupying the lowest layer of the ocean above the seabed.
Bottom-crawling ROV X65. ROVs, AUVs, USVs and Marine Robotics: Class IV vehicle that traverses the seabed on tracks or wheels, typically for trenching, burial or dredging support.
Bottom-fixed wave device X57. Ocean Energy Beyond Wind: Wave energy converter anchored or piled to the seabed in shallow water, including oscillating wave surge converters.
Bottomry X4. Marine Insurance, P&I and Claims: ancient maritime loan secured on the ship, largely obsolete.
Bottomry bond C1. Commercial shipping, chartering, economics and finance: Historic security where a ship was pledged for a voyage loan.
Bouchard Barge 120 X126. Marine Oil Spill Response and OPRC Regimes: 2003 Buzzards Bay spill of 98,000 gallons of No. 6 fuel oil that prompted Massachusetts response reforms.
Boudicca X64. Cruise Industry Operators, Brands and Ships: Former Fred. Olsen Cruise Lines ship retired in 2020.
Boudin, Eugene F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Nineteenth-century French marine painter.
Bougainville (USS) LHA-8 X106. Naval Surface Combatants: Third America-class amphibious assault ship and first of the subclass with a well deck restored.
Boulder clearance X42. Offshore Wind Installation and Cable Lay: Pre-lay survey and removal of seabed boulders along cable routes using grabs or plows.
Boulder protection X175. Port Engineering, Dredging, Breakwaters, and Quays: Heavy rock placed locally on the bed to deflect anchors or prevent scour around marine structures.
Bounce Dive X82. Saturation Diving and Offshore Diving Operations: Surface-supplied or bell dive without entering saturation.
Bound by Subjects X29. Ship Sale and Purchase, Management Contracts and Valuation: Fixture not yet effective pending lifting of subjects.
Boundary Cell X73. Marine Hydrography, Charting and ENC: An ENC cell containing the metadata polygon at the limit of a producer's area of responsibility.
Boundary Delimitation A6. Public international law of the sea: Determination of maritime boundaries between adjacent or opposite states.
Boundary Element Method X54. Naval Architecture Software and IACS Rules: Numerical technique discretizing only body surfaces, used in WAMIT, AQWA, and WADAM for potential flow hydrodynamics.
Boundary element method (BEM) B1. Naval Architecture: Panel method solving Laplace's equation for potential flow.
Boundary layer B1. Naval Architecture: Thin viscous region adjacent to the hull.
Boundary Mud Line X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Reference plane in pipeline engineering corresponding to the original seabed level, used to define on-bottom stability calculations.
Boundary Protection X48. Maritime Cybersecurity: Controls placed between shipboard network zones, including firewalls, data diodes, and unidirectional gateways.
Bounty replica (1960) X128. Sail Training Ships and Tall Ship Associations: MGM built three masted full rigged ship launched 1960 at Lunenburg, 55 m length, lost off North Carolina during Hurricane Sandy on 29 October 2012 with two fatalities.
Bounty, HMS X39. Pre-1900 Maritime History: Royal Navy armed transport whose crew mutinied under Fletcher Christian on April 28, 1789.
Bourbon X59. Offshore Wind O&M, CTVs and SOVs: French offshore vessel operator whose subsea fleet supports wind farm cable repair and survey campaigns.
Bourbon Offshore X167. Major Salvage Companies, Wreck Removals, and Equipment: French offshore vessel operator whose anchor handling tugs have supported salvage tow operations worldwide.
Bourbon Orca X109. Maritime Autonomous Surface Ships and MASS Code: An offshore support vessel of the Bourbon fleet used in early studies of unattended bridge concepts with Ulstein.
Bourbon Phocas X109. Maritime Autonomous Surface Ships and MASS Code: A sister offshore vessel involved in similar unattended bridge experimentation.
Bourbon Rhode (2019) X12. Maritime Casualties and Investigation: Anchor-handler lost in Hurricane Lorenzo on 26 September 2019 with 11 of 14 crew missing; investigated by BEAmer.
Bourbon Subsea Services X122. Submarine Cable Laying, Repair Vessels and Operators: French subsea contractor whose vessel pool occasionally serves cable burial campaigns through plough deployment.
Bourbon Surf Class X79. Tugs and Towage Industry: Series of large offshore AHTS vessels built for Bourbon Offshore with high bollard pull.
Bourdon Tube X82. Saturation Diving and Offshore Diving Operations: Mechanical pressure-sensing element in chamber depth gauges.
Boussinesq Approximation D1. Physical and chemical oceanography and marine meteorology: Simplification treating density variations as negligible except in buoyancy terms.
Boutwell, USCGC (WHEC-719) X130. National Coast Guards and Cutter Fleets: Hamilton-class High Endurance Cutter, decommissioned 2016, transferred to Philippine Navy as BRP Andres Bonifacio (FF-17).
Bouvet-class X77. Naval Mine Warfare and Mine Countermeasures: A historical French minesweeper class of the early twentieth century.
Bovespa Iron Ore X44. Shipping Indices, FFAs and Freight Markets: Brazilian equity market reference influencing sentiment in Capesize FFA trading via Vale and other miners' production guidance.
Bow X3. Ship Handling, Seamanship and Deck Vocabulary: Forward end of the vessel.
Bow Anchor X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Anchor stowed in the bow hawse pipe, normally the main working anchor on merchant ships.
Bow Antenna Offset (A) X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: Distance from AIS GNSS antenna to bow.
Bow block X58. Shipbuilding Yards and Construction: Forward hull section incorporating the bulbous bow, fore peak, and forward shell.
Bow Camera X109. Maritime Autonomous Surface Ships and MASS Code: A forward facing camera mounted near the bow of an autonomous vessel for close range obstacle confirmation.
Bow coupling X124. Dredging Industry and Reclamation Contractors: Floating-line connection at TSHD bow for shore pumping after sailing in.
Bow door X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary: SOLAS II-1/17 prohibits installation in passenger ships unless meeting strength, securing, and indication requirements introduced after the Herald of Free Enterprise loss in 1987.
Bow Door Casualty X13. Marine Salvage and Wreck Removal: Failure mode behind Herald of Free Enterprise 1987, prompting roro salvage protocols.
Bow Fender X30. Tug Operations and Harbour Towage: Heavy fender mounted on the tug's bow for pushing and pulling contact with the ship's hull.
Bow flare B1. Naval Architecture: Outward curvature of the forward sections above the waterline.
Bow Flare Slamming X9. Cargo Securing, Lashing and Stability Vocabulary: Forward impact accelerations, particularly severe in CSS Annex 13 forward-zone factors.