Glossary

Maritime glossary, terms beginning with S (page 14)

All maritime glossary terms that begin with the letter S, drawn from every subject section. 4952 entries.

Showing 250 of 4952 terms (page 14 of 20).

Sovereign Marine and General X145. P&I Clubs, War Risk Insurers, and Marine Insurance Markets: Lloyd's syndicate, historical.
Sovremenny-class destroyer X106. Naval Surface Combatants: Russian Navy Project 956 guided-missile destroyer class, most units now retired.
SOx X69. EGCS Scrubbers, SCR and Marine Air Emissions: Oxides of sulfur, primarily SO2 with smaller fractions of SO3.
Sox (sulfur oxides) X149. Marine Fuels, Bunkering, and Alternative Fuels: Combustion products of fuel sulfur, regulated by the global 0.50% sulfur cap and 0.10% ECA cap.
SOx Cap (Global) D6. Decarbonization, emissions and alternative fuels: 0.50 percent sulfur cap on marine fuel.
SOx Cap ECA (Reg 14.4) X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: The MARPOL Annex VI sulphur cap of 0.10 percent m/m of fuel oil in designated ECAs, in effect from 1 January 2015.
SOx Cap Global (Reg 14.1.3) X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: The MARPOL Annex VI global sulphur cap of 0.50 percent m/m of fuel oil used on board, in effect from 1 January 2020.
SOx ECA Cap D6. Decarbonization, emissions and alternative fuels: 0.10 percent sulfur cap within Emission Control Areas.
SOx Scrubber Recovery X28. Ship Recycling and End-of-Life: Removal and reuse or disposal of exhaust gas cleaning systems.
Soy Sauce X120. Marine Catering, Provisions and Ship Chandlers: IMPA 550409 1 L bottle, Asian crew provisioning staple.
Soybean Barge X103. US Inland Waterway Towing and Barge: A covered hopper barge carrying soybeans, typically to Lower Mississippi River export elevators.
Soybean Hulls X103. US Inland Waterway Towing and Barge: A processing co-product moved in covered hoppers as livestock feed.
Soybean Meal X1. Cargo Science, Commodities and Cargo Care: Group B self-heating; protein cargo.
Soybean Oil X93. IBC Code and Chemical Tanker Operations: Vegetable oil pressed from soybeans, carried in bulk as a Category Y cargo under Annex II.
Soybeans X1. Cargo Science, Commodities and Cargo Care: Major grain cargo; oily; self-heating risk.
SP X75. IMDG Code, Classes, Packing and Segregation: Special Provision prefix used in IMDG column 6 of the Dangerous Goods List.
SP Equipment Number X54. Naval Architecture Software and IACS Rules: Specific equipment number variants used by IACS societies for anchoring equipment.
SP-728 (NATO STANAG NCAGS) E1. Maritime security, geopolitics and risk: Doctrinal publication.
SP-SNNM Method X78. Voyage Optimization and Vessel Performance Software: A refinement of the SNNM added resistance formulation incorporating spectral wave parameters for performance corrections.
SP188 X75. IMDG Code, Classes, Packing and Segregation: Special Provision for lithium batteries shipped under reduced requirements with packaging and watt hour rating limits.
SP230 X75. IMDG Code, Classes, Packing and Segregation: Special Provision for lithium batteries with detailed packaging, marking and Watt hour limits per cell and battery.
SP240 X75. IMDG Code, Classes, Packing and Segregation: Special Provision exempting certain battery powered vehicles and equipment from Class 9 lithium battery provisions.
SP303 X75. IMDG Code, Classes, Packing and Segregation: Special Provision for receptacles small containing gas such as CO2 cartridges UN 2037.
SP310 X75. IMDG Code, Classes, Packing and Segregation: Special Provision for prototype and small production runs of lithium batteries.
SP376 X75. IMDG Code, Classes, Packing and Segregation: Special Provision for damaged, defective or recycled lithium batteries, with strict packaging or carriage approval requirements.
SP384 X75. IMDG Code, Classes, Packing and Segregation: Special Provision noting safety devices for lithium batteries.
SP387 X75. IMDG Code, Classes, Packing and Segregation: Special Provision for lithium ion batteries containing both lithium ion and lithium metal cells.
SP400 X75. IMDG Code, Classes, Packing and Segregation: Special Provision for certain organic peroxide types and concentrations.
Spa X41. Cruise Ship Public Health and VSP/USPH: Whirlpool feature subject to VSP Item 40 with shorter turnover, higher disinfection setpoints, and bather log requirements.
Space Ratio X164. Cruise Industry, Brands, Ship Classes, and Terminals: A measure of cruise ship spaciousness calculated as gross tonnage divided by lower berth capacity, with values above 50 considered premium.
SpaceX X68. Maritime Satcom and Telecommunications: American aerospace company that operates the Starlink constellation.
Spade rudder X38. Propellers, Stern Gear and Shaft Lines: Cantilevered rudder without horn support, common on container ships and tankers behind a single propeller.
Spain PSC X66. Port State Control and Regional MOUs: Paris MOU and Mediterranean MOU member State.
Spalmatori, The [1964] AC 868 X143. Landmark Maritime Law Cases and Doctrines: House of Lords held that demurrage is a liquidated sum payable for breach of voyage charter laytime.
Span Gear X137. Harbour Tugs, Towage Operators and Tug Builders: Bridle arrangement on tow lines for distributing load.
Span Rectification X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Installation of grout bags, sand bags, or mechanical supports to mitigate pipeline free spans.
Spanish Arbitration Act 2003 X152. Maritime Arbitration and Dispute Resolution: Arbitration law based on the UNCITRAL Model Law, used at Madrid seat for some Mediterranean maritime disputes.
Spanish Armada X39. Pre-1900 Maritime History: The Spanish invasion fleet of 1588 defeated in the Channel and dispersed off Gravelines on August 8, 1588.
Spanish Distant Water Fleet X87. Fishing Vessels and Fisheries Management: Tuna purse seine, longline, and freezer trawler fleets operating worldwide under EU and ICCAT rules.
Spanish Ship Registry X98. Ship Registries and Flag States: Primary Spanish registry administered by the Direccion General de la Marina Mercante.
Spanish Special Register X98. Ship Registries and Flag States: Registro Especial de Buques y Empresas Navieras de Canarias, REC, the Spanish second register based in the Canary Islands.
Spanish Treasure Fleet F1. Maritime History: Flota de Indias system 1566 to 1790 between Seville-Cadiz and the Indies.
Spanker X3. Ship Handling, Seamanship and Deck Vocabulary: Fore-and-aft sail set on the after side of the mizzen mast.
Spanner Pop Boiler X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Vertical cross-tube steam vessel boiler from Spanner Boilers Ltd used as small auxiliary on workboats and tugs.
SPAR X14. Offshore Oil and Gas Marine Operations: Deep-draft vertical cylindrical floater (classic, truss, cell).
Spar Buoy X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: Long, vertical buoy of relatively small diameter, used in sheltered waters.
Spar Foundation X105. Offshore Wind Farm Installation and Vessels: Cylindrical floating foundation ballasted at the base, used by Hywind Scotland and Hywind Tampen.
Spare Parts Clearance X86. Port Agency, Husbandry and Disbursement: Customs clearance of ship spare parts under simplified procedures where available.
Spare Parts in Transit X86. Port Agency, Husbandry and Disbursement: Spare parts moving under SPT documentation for delivery on board.
Spare Parts Inventory at Delivery X50. Ship Recycling, Demolition and Hong Kong Convention: The Part III stores listing of spare parts aboard at recycling, including potentially regulated materials.
Spares ROB X29. Ship Sale and Purchase, Management Contracts and Valuation: Onboard spare parts inventory delivered with vessel.
Spares warehousing X59. Offshore Wind O&M, CTVs and SOVs: Onshore storage of turbine and balance of plant spare parts at the O&M base.
Spark Hazard X100. Marine Cathodic Protection and Anodes: The ignition risk that prohibits the use of magnesium anodes inside flammable atmospheres, such as crude oil cargo tanks under SOLAS II-2.
Spark Test X88. Marine Surface Preparation and Coatings Application: High-voltage holiday detection using a DC potential between a roller, brush, or spring electrode and the substrate to detect coating discontinuities.
Sparring X3. Ship Handling, Seamanship and Deck Vocabulary: Wooden battens fitted in cargo holds.
Sparrows Point X59. Offshore Wind O&M, CTVs and SOVs: Maryland port developing O&M and staging infrastructure for US Mid Atlantic offshore wind.
Spartacus X124. Dredging Industry and Reclamation Contractors: DEME CSD of 44,180 kW total installed power, the world's most powerful CSD, delivered 2021 and LNG dual-fuel.
Spat X10. Marine Biology, Fisheries and Oceanography: Newly settled juvenile of bivalve mollusks.
Spatial Management D4. Fisheries, aquaculture, blue economy and marine resources: Use of zoning to manage fisheries.
Spatial Planning (Marine) D3. Marine environmental science, pollution and conservation: Process of allocating marine areas to uses to balance objectives.
Spawning Stock Biomass (SSB) D4. Fisheries, aquaculture, blue economy and marine resources: Biomass of mature individuals in a stock.
Spazio Custom X35. Yacht and Superyacht Industry: Italian custom builder; one of several Italian niche yards.
SPB X56. LNG/LPG Carriers and IGC Code: Self-supporting Prismatic IMO Type B containment system developed by IHI.
SPB (Self-Supporting Prismatic Type B) X20. LNG Operations and Custody Transfer: IHI independent prismatic tank with internal bulkheads; used on Pacific Pintail, Polar Eagle, and Prelude FLNG.
SPC X165. Marine Coatings, Antifouling, and Hull Husbandry: Self-polishing copolymer antifouling chemistry.
SPCO X126. Marine Oil Spill Response and OPRC Regimes: Sealift Petroleum Containment Operations of US Navy.
Spear-Phishing E1. Maritime security, geopolitics and risk: Targeted phishing against specific shore/ship staff.
Spearfish X11. Naval Vessels, Warship Systems and Naval Architecture: BAE Mod 1 heavyweight torpedo on RN SSN.
Spec Voyage X44. Shipping Indices, FFAs and Freight Markets: Voyage based on the agreed Baltic specification vessel, central to consistent index calculation.
Special Agreement (ITF) X154. Maritime Welfare, Seafarer Charities, and MLC Rights: See ITF Special Agreement.
Special Arbitration A6. Public international law of the sea: Procedure under UNCLOS Annex VIII for fisheries, MSR, navigation, or pollution disputes.
Special Area A3. Marine environmental legislation: MARPOL and its annexes: Sea area with stricter discharge regime under MARPOL Annexes I, II, IV, and V.
Special Area (MARPOL Generic) X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: A sea area where, for technical reasons relating to its oceanographic and ecological condition and to the particular character of its traffic, the adoption of special mandatory methods for the…
Special Area (MARPOL) X27. Polar Code, Ice Navigation and Polar Operations: Antarctic is a Special Area under MARPOL Annex I and Annex V.
Special Casualty Representative Office X99. Marine Salvage Awards and SCOPIC: Successor organization to the Lloyd's Salvage Arbitration Branch.
Special Compensation X4. Marine Insurance, P&I and Claims: compensation under Article 14 of the Salvage Convention 1989 for salvors preventing environmental damage.
Special Economic Measures Act (SEMA, Canada) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: The Canadian statutory basis for Russia, Iran, and Ukraine-related sanctions, enforced by Global Affairs Canada.
Special Form Radioactive Material X75. IMDG Code, Classes, Packing and Segregation: Class 7 material in solid form or sealed capsule with specified resistance to dispersion.
Special mark X16. Nautical Science, Navigation and COLREGs: IALA yellow mark indicating a special area or feature.
Special Operations Forces Submarine X91. Submarines and Submarine Cable Systems: Submarine configured to deploy combat swimmers, including SSGN and SSN variants with Dry Deck Shelters.
Special Order X41. Cruise Ship Public Health and VSP/USPH: Custom dish preparation, subject to VSP rules on raw or undercooked animal foods including consumer advisories.
Special Order Survey X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Highest IHO S-44 accuracy category, with total vertical uncertainty under 0.25 meters and 100 percent feature detection, for fairways with minimum under-keel clearance.
Special Periodical Survey X43. Marine Surveying and Warranty Surveying: See class renewal survey, the five-yearly comprehensive survey under classification rules.
Special Provision X75. IMDG Code, Classes, Packing and Segregation: Provision attached to specific UN entries, identified by SP numbers in column 6 of the DGL.
Special Provision (SP) X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: A provision in Chapter 3.3 modifying or supplementing the general DGL requirements for specific UN entries, e.g., SP 188 for small lithium batteries.
Special Provision 188 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Provision for small lithium cells/batteries below 20 Wh/100 Wh thresholds, with reduced documentation but lithium battery mark required.
Special Provision 230 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Provision requiring lithium cells and batteries to be type-tested under UN Manual of Tests and Criteria Part III Section 38.3.
Special Provision 274 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Requirement for the technical name to be entered in parentheses after the PSN for NOS and generic entries.
Special Provision 376 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Provision for damaged, defective, or recalled lithium cells and batteries, requiring UN 3090/3091/3480/3481 with special packaging conditions.
Special Provision 961 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Limited quantity provision for engines and machinery exempting certain UN 3528/3529/3530 movements from full IMDG application.
Special Purpose Ship Training X21. STCW Certificates, Crewing and Seafarer Welfare: SPS familiarization for crew on units carrying special personnel.
Special Survey X43. Marine Surveying and Warranty Surveying: The five-yearly comprehensive class inspection involving thickness measurement, internal examination, and extensive testing.
Special Survey (SS) B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: 5-yearly class survey.
Special Survey Status X40. Tanker Vetting, SIRE and VIQ: The interval and condition of the class special survey, examined under VIQ Chapter 2.
Special Survey Status at Recycling X50. Ship Recycling, Demolition and Hong Kong Convention: The classification society survey status of the vessel at the time of recycling, often expired or about to expire.
Specialist Husbandry Provider X86. Port Agency, Husbandry and Disbursement: Provider focusing on specific husbandry services such as launches or chandlery.
Specialist Survey X43. Marine Surveying and Warranty Surveying: A general term for inspections requiring specialist competence such as refrigerated cargo, projects, heavy lift, or composites.
Specialized Agency A1. The IMO and the international regulatory framework: Status of IMO within the UN system under a 1948 relationship agreement.
Specialized Inspector X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: A SIRE 2.0 inspector qualified for specific tanker types such as gas carriers or chemical tankers.
Specialized Service Provider (Offshore) E4. Cruise, offshore energy and auxiliary/specialised fleets: Specialty company classifications.
Specialty Chemicals X135. Chemical Tanker Operators and IBC Code Cargoes: Higher-margin small-parcel cargoes such as DMC, NMP, EDC and aniline carried in dedicated stainless tanks on Stolt and Odfjell.
Specialty Container X83. ISO Container Manufacturing and Leasing: Any container other than a standard dry box, including reefer, flatrack, tank, open-top, and bulk units.
Specialty Lines X117. Marine Insurance Markets, Captives and Reinsurance: Non-standard insurance lines including marine, energy, aviation, political risk and cyber.
Specialty restaurant X24. Cruise, Passenger Ship and Ferry Operations: Reservation-based dining venue with a cover charge.
Specialty Vessel Recycling X50. Ship Recycling, Demolition and Hong Kong Convention: The dismantling of LNG carriers, LPG carriers, and chemical tankers, requiring specialized pre-cleaning protocols.
Specific Activity X75. IMDG Code, Classes, Packing and Segregation: Activity per unit mass of a radionuclide, used in Class 7 classification.
Specific Gravity Calibration X5. Marine Surveying and Inspection: Calibration of hydrometers used in draft and bunker surveys.
Specific Heat of Seawater D1. Physical and chemical oceanography and marine meteorology: Heat required to raise temperature of one kilogram of seawater by one degree.
Specific Performance X51. Maritime Arbitration, Law and BIMCO Clauses: An equitable remedy compelling performance of contractual obligations, rarely available in maritime contracts other than ship sale.
Specific thrust X38. Propellers, Stern Gear and Shaft Lines: Thrust per unit disc area, T / (rho V^2 D^2 pi / 4), used in heavily loaded propeller analysis.
Specific yield (tidal) X57. Ocean Energy Beyond Wind: Energy produced per swept area at a tidal turbine, used to compare device technologies.
Specification Limit X115. Marine Bunker and Cargo Surveying: Numerical limit set in ISO 8217 or a contract for a particular fuel property such as sulfur, viscosity, or density.
Specified Person (UK) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A person listed under UK sanctions regulations and subject to asset freeze.
Speck Pump X63. Marine Auxiliary Machinery and Pumps: German manufacturer of regenerative and centrifugal pumps used in some specialty marine duties.
Specronix X19. Engine Room Watchkeeping and UMS Operations: Brand of oil mist detector fitted as alternative to Schaller Visatron.
Spectacle plate X3. Ship Handling, Seamanship and Deck Vocabulary: Iron fitting securing rigging to the side of a ship.
Spectec X25. Maritime Cybersecurity, OT and IT: Maritime software supplier offering AMOS planned maintenance and fleet management.
Spectra X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Honeywell trademark for HMPE fibre used in mooring and rigging ropes.
Spectra Fiber X94. Port Machinery and Quay Equipment Makers: Honeywell-produced ultrahigh molecular weight polyethylene fiber used in HMPE mooring lines.
Spectral Fatigue Analysis X54. Naval Architecture Software and IACS Rules: Frequency-domain fatigue assessment based on wave scatter diagrams and RAOs.
Spectral wave model X57. Ocean Energy Beyond Wind: Numerical model used to characterize wave climate at WEC sites.
Spectrographic analysis X61. Marine Lubricants and Cylinder Oils: Element-level used oil testing by emission or absorption spectroscopy.
Spectrophotometric analysis X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Used for color and contamination assessment of fuels.
Spectrum X65. ROVs, AUVs, USVs and Marine Robotics: Oceaneering electric work-class ROV with reduced hydraulic content.
Spectrum Efficiency X68. Maritime Satcom and Telecommunications: Bits per second per Hertz delivered by a given modulation and coding scheme.
Spectrum of the Seas X64. Cruise Industry Operators, Brands and Ships: Royal Caribbean Quantum Ultra-class ship delivered in 2019.
Speculator X44. Shipping Indices, FFAs and Freight Markets: FFA market participant taking directional or relative-value positions without underlying physical exposure.
Speed and consumption claim X152. Maritime Arbitration and Dispute Resolution: Common time charter dispute over warranted performance, frequently arbitrated under NYPE 1993 clause 8(a).
Speed and Consumption Warranty X17. Chartering, Shipbroking and Freight Trading: Owner's promise regarding speed and bunker consumption under defined weather conditions.
Speed Degradation Curve X78. Voyage Optimization and Vessel Performance Software: A characterization of how a vessel's attainable speed at given power degrades over time due to hull and propeller fouling and wear.
Speed log X16. Nautical Science, Navigation and COLREGs: Instrument measuring vessel speed through water or over ground.
Speed log (Doppler) B3. Nautical Science: Acoustic speed-through-water and over-ground sensor.
Speed Log Interface X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: IEC 61162 output from the SDME providing VHW and VBW sentences to autopilot and ECDIS.
Speed made good (SMG) X16. Nautical Science, Navigation and COLREGs: Average speed along track over ground.
Speed of Lift X104. Project Cargo Forwarders and Heavy Transport: Permitted hoist or slewing speed under a lift plan, often reduced for critical moves.
Speed Over Ground X109. Maritime Autonomous Surface Ships and MASS Code: The GNSS derived ship speed used by autonomy guidance functions.
Speed over ground (SOG) X16. Nautical Science, Navigation and COLREGs: GNSS-derived speed over ground.
Speed Trial X96. Hull Integrity Monitoring and Strain Gauges: Sea trial measuring vessel speed at defined power settings, typically on a measured mile course.
Speed Trial Preparation X113. Drydock and Ship Repair Yards: Post-refit activity to verify propulsion performance after drydock works such as hull cleaning and ESD installation.
Speed-length ratio X162. Naval Architecture, Stability, Resistance, and Structural Design: Traditional speed parameter V (knots) divided by the square root of L (feet), related to Froude number.
Speedboat Exclusion X108. Marine Insurance and P&I Clubs: The standard P&I exclusion of high speed pleasure craft from club entry.
Speedcast X48. Maritime Cybersecurity: Maritime communications service provider whose Ku and Ka band networks support many merchant and offshore vessels.
Speedcast SIGMA Net X68. Maritime Satcom and Telecommunications: Speedcast hybrid network management platform for vessel WAN orchestration.
Speedlog X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Wartsila NACOS Platinum speed log subsystem in the Platinum bridge.
Spek Anchor X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Spek-pattern stockless anchor of Dutch design, accepted by class as a standard stockless type.
Spell X3. Ship Handling, Seamanship and Deck Vocabulary: Period of duty.
Spencer, USCGC (WMEC-905) X130. National Coast Guards and Cutter Fleets: Famous-class medium endurance cutter homeported Boston, Massachusetts.
Spent Lithium Battery X28. Ship Recycling and End-of-Life: Battery type increasingly present in modern ships, removed before hot work.
Sperm whale X10. Marine Biology, Fisheries and Oceanography: *Physeter macrocephalus*, the largest toothed whale.
Sperre X63. Marine Auxiliary Machinery and Pumps: Norwegian manufacturer of marine air compressors.
Sperre HL X63. Marine Auxiliary Machinery and Pumps: Sperre horizontal piston compressor series.
Sperre HV X63. Marine Auxiliary Machinery and Pumps: Sperre vertical piston compressor series for starting air duty.
Sperre HV2 X63. Marine Auxiliary Machinery and Pumps: Two-cylinder version of the Sperre vertical compressor.
Sperre HV3 X63. Marine Auxiliary Machinery and Pumps: Three-cylinder version of the Sperre vertical compressor.
Sperry Marine X89. ECDIS and Bridge Equipment Makers: Historic United States gyrocompass maker, currently part of Leonardo, supplying VisionMaster FT and NAVIGAT products.
Sperry Marine MRU X96. Hull Integrity Monitoring and Strain Gauges: Motion reference unit offering from Sperry Marine.
Sperry MK1 X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Sperry Marine fiber-optic gyrocompass branded under the Navigat X family.
Sperry Navigat 4100 X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Fiber-optic gyrocompass from Sperry Marine certified to IMO Resolution A.821(19).
Sperry TotalWatch X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Sperry Marine integrated bridge solution targeted at naval and high-end commercial vessels.
Sperry VisionMaster FT X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Sperry Marine multi-function workstation hosting radar, ECDIS, conning, and AIS overlay.
Sperry VisionMaster Net 4000 X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Sperry Marine networked radar processor for distributed bridge systems.
Sperry VisionMaster Solid State X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: SSR variant of the VisionMaster FT radar processor.
Spherical tank X56. LNG/LPG Carriers and IGC Code: Moss-type IMO Type B aluminum cargo tank with hemispherical geometry.
Sphericity X75. IMDG Code, Classes, Packing and Segregation: Geometric measure of bulk solid particle shape; relevant to IMSBC classification more than IMDG packaged goods.
Spheroid X16. Nautical Science, Navigation and COLREGs: Reference ellipsoid for geodetic computations.
Sphygmomanometer X36. Shipboard Medical, Telemedicine and Seafarer Health: Blood pressure cuff and gauge in IMGS Annex V.
Spice Trade F1. Maritime History: Long-running commerce in pepper, cloves, nutmeg, and cinnamon from the Indies.
Spices (Bulk) X120. Marine Catering, Provisions and Ship Chandlers: IMPA 550417 series, 1 kg pack typical, dry stores.
Spider chart X15. Ports, Terminals and Stevedoring: yard density visualization.
Spiliada Maritime Corp v Cansulex Ltd [1987] AC 460 X143. Landmark Maritime Law Cases and Doctrines: House of Lords established the modern English forum non conveniens test.
Spill Procedures X75. IMDG Code, Classes, Packing and Segregation: Steps prescribed in EmS S schedules for response to release of dangerous goods at sea.
Spill Tray Inspection X5. Marine Surveying and Inspection: Check of bunker and cargo manifold drip trays.
Spilling Valve X63. Marine Auxiliary Machinery and Pumps: Pressure-overflow valve returning excess flow from a fixed-displacement pump to suction.
Spillproof X75. IMDG Code, Classes, Packing and Segregation: Design feature of certain Class 8 batteries qualifying for UN 2800 exemptions.
Spillway (tidal range) X57. Ocean Energy Beyond Wind: Controlled overflow structure at a tidal barrage or lagoon.
Spinergie X78. Voyage Optimization and Vessel Performance Software: A maritime analytics platform providing fleet performance and operations intelligence including offshore vessel coverage.
Spinnaker X84. Yacht Racing, Regattas and Sailing Governance: A large, balloon-shaped downwind sail.
Spinning reserve X42. Offshore Wind Installation and Cable Lay: Power system reserve; included for grid context.
Spiral Boss X112. IMO GHG Strategy, CII, EEXI and EU Maritime Regulation: Propeller boss cap fin design that reduces hub vortex losses.
Spire Global X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: US-based satellite operator providing S-AIS services after the acquisition of exactEarth.
Spire Maritime X74. AIS Data, Vessel Tracking and Maritime Intelligence: AIS, weather and dynamic vessel data service from Spire Global.
Spirit Class X164. Cruise Industry, Brands, Ship Classes, and Terminals: A Carnival Cruise Line class of four ships including Carnival Spirit, Carnival Pride, Carnival Legend, and Costa Atlantica/Mediterranea sisters.
Spirit of Adventure X64. Cruise Industry Operators, Brands and Ships: Saga Cruises ship delivered in 2020.
Spirit of Bermuda X128. Sail Training Ships and Tall Ship Associations: Three masted Bermuda sloop schooner built 2006 at Wareham UK, 34 m length, sail training flagship of Bermuda Sloop Foundation.
Spirit of British Columbia X85. Ferries, Ro-Pax Operators and Routes: BC Ferries Spirit class ro-pax built 1993 deployed on Tsawwassen to Swartz Bay.
Spirit of Discovery X64. Cruise Industry Operators, Brands and Ships: Saga Cruises ship delivered in 2019.
Spirit of Enderby X97. Polar Expedition Cruise and IAATO Operations: Heritage Expeditions ice-class expedition ship (Professor Khromov) with 50 PAX used for subantarctic and Ross Sea voyages.
Spirit of New Zealand X128. Sail Training Ships and Tall Ship Associations: New Zealand steel three masted topsail barquentine built 1986 at Whangarei, 45 m length, operated by Spirit of Adventure Trust for youth sail training.
Spirit of Tasmania X166. Inland Waterways, Ferries, RoRo, and Short Sea Shipping: The Bass Strait RoPax service of TT-Line Company (Tasmania) between Geelong and Devonport.
Spirit of Tasmania (sail) X128. Sail Training Ships and Tall Ship Associations: Not a sail training ship; the name refers to TT Line Bass Strait ferries and is excluded from STI registers.
Spirit of Tradition X125. Superyacht Industry, Builders and Brokers: Classic styled yachts built to modern standards, examples by Spirit Yachts in Ipswich.
Spirit of Vancouver Island X85. Ferries, Ro-Pax Operators and Routes: BC Ferries Spirit class ro-pax built 1994 sister of Spirit of British Columbia.
Spitsbergen Cable X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Two parallel submarine cables connecting Svalbard with mainland Norway, commissioned in 2003-2004; a 2022 outage led to repair operations.
Spitsbergen Treaty 1920 A6. Public international law of the sea: Multilateral treaty governing Svalbard sovereignty and access.
Splash 247 X71. Shipbrokers and Brokerage Firms: Online maritime news outlet widely read by brokers.
Splash Conferences X119. Maritime Conferences, Trade Shows and Awards: Annual Asia-focused shipping events by Asia Shipping Media.
Splash Pad X41. Cruise Ship Public Health and VSP/USPH: Interactive recreational water feature operated under continuous halogenation and rapid turnover.
Splash zone X15. Ports, Terminals and Stevedoring: vertical area subject to spray, requiring protective coatings.
Splice X3. Ship Handling, Seamanship and Deck Vocabulary: Join ropes by interweaving strands.
Splice case X122. Submarine Cable Laying, Repair Vessels and Operators: Pressure-tight housing protecting the fusion-spliced fibers in a field joint, requiring full vacuum testing before relaunch.
Spliethoff X81. Project Cargo, Heavy-Lift and Module Carriers: Amsterdam-headquartered group operating Spliethoff's Bevrachtingskantoor, BigLift Shipping, Sevenstar Yacht Transport, Wijnne Barends, Bore and Transfennica.
Spliethoff Agency Coordination X86. Port Agency, Husbandry and Disbursement: Coordination of agency services for Spliethoff Group vessels.
Spliethoff's Bevrachtingskantoor X81. Project Cargo, Heavy-Lift and Module Carriers: Spliethoff group multipurpose shipping line.
Splint set X36. Shipboard Medical, Telemedicine and Seafarer Health: Padded malleable, vacuum, and air splints stocked per category.
Split X64. Cruise Industry Operators, Brands and Ships: Croatian Adriatic cruise port and UNESCO World Heritage Site.
Split hopper X175. Port Engineering, Dredging, Breakwaters, and Quays: Hopper dredger or barge whose hull splits longitudinally to release the cargo by gravity.
Split-Casing Pump X63. Marine Auxiliary Machinery and Pumps: Centrifugal pump with axially split casing for ease of impeller maintenance.
Splunk X107. Maritime Cybersecurity and OT Security: Log analytics and SIEM platform.
SPM C4. Ports, terminals and coastal/marine civil engineering: Single point mooring offshore terminal.
SPM Buoy X126. Marine Oil Spill Response and OPRC Regimes: Single Point Mooring, both a spill source and a recovery work area.
SPMT X42. Offshore Wind Installation and Cable Lay: Self Propelled Modular Transporter used to move monopiles and transition pieces during yard logistics.
SPMT (Self-Propelled Modular Transporter) B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Heavy load mover for block transport.
SPOC X80. Maritime Search and Rescue Coordination: Search and Rescue Point of Contact, the national 24/7 SAR contact for Cospas-Sarsat.
Sponson X141. Marine Salvage Industry and Wreck Removal Contractors: Hollow steel buoyancy tank welded to a casualty's side to provide lift.
Sponson Box X60. Marine Salvage and Wreck Removal: External buoyancy box attached to a hull during salvage to restore freeboard.
Sponsor X58. Shipbuilding Yards and Construction: Person, often a woman, who christens a ship at its naming ceremony.
Sponsor Equity X49. Ship Finance, Leasing and Maritime Capital Markets: Equity contribution from the project sponsor in a ship financing.
Spoofing X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: Deliberate transmission of false AIS data, often using fabricated MMSIs.
Spool X14. Offshore Oil and Gas Marine Operations: Short pipe section connecting subsea structures.
Spool Base X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Onshore facility where rigid pipe is welded into long stalks for spooling onto reel-lay vessels.
Spool piece X42. Offshore Wind Installation and Cable Lay: Pre-fabricated cable or pipework section bridging final connection points.
Spool, pipe X58. Shipbuilding Yards and Construction: Prefabricated pipe assembly with flanges and supports.
SpoolBase Mongstad X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Subsea 7 spool base near Bergen, Norway, supplying rigid pipelines for North Sea projects.
SPOS X96. Hull Integrity Monitoring and Strain Gauges: Ship Performance Optimization System voyage routing software.
SPOS (Ship Performance Optimization System) X78. Voyage Optimization and Vessel Performance Software: A weather routing and onboard voyage optimization product originally from MeteoConsult, later under MeteoGroup, and continued by DTN.
Spot Beam X68. Maritime Satcom and Telecommunications: Narrow satellite beam used to concentrate capacity on a specific region.
Spot Blasting X113. Drydock and Ship Repair Yards: Localized abrasive blasting of failed coating areas during drydock to limit cost and minimize hazardous waste.
Spot EUA X34. Decarbonization, Alternative Fuels and Carbon Pricing: EU allowance traded for immediate delivery on EEX or ICE Endex.
Spot Fixture X17. Chartering, Shipbroking and Freight Trading: Single voyage fixture for prompt loading.
Spot market C1. Commercial shipping, chartering, economics and finance: Single voyage market.
Spot Sample X115. Marine Bunker and Cargo Surveying: Single sample drawn at one point in time from a tank or pipeline, distinct from a flow-proportional composite.
Spot test X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Compatibility test on filter paper per ASTM D4740.
Spotter X15. Ports, Terminals and Stevedoring: ground guide for equipment movements.
Spotter (helicopter) X27. Polar Code, Ice Navigation and Polar Operations: Helicopter-borne ice scouting from icebreaker or shore.
Sprague Energy Marine X72. Bunkering Hubs and Bunker Suppliers: US north east bunker supplier active at Boston, Providence, New York, Albany, and Portland Maine.
Sprague Operating Resources X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: US east coast physical bunker supplier acquired by Hartree Partners.
Spray glider X65. ROVs, AUVs, USVs and Marine Robotics: Underwater glider originally developed at Scripps Institution of Oceanography and produced under various licenses.
Spray gun X45. Marine Paints, Coatings and Antifouling: Tool used to atomize and apply paint, classified as airless, air-assisted, or air spray.
Spray Header X20. LNG Operations and Custody Transfer: Distribution line feeding cool-down nozzles in cargo tanks.
Spray Nozzle Wear X69. EGCS Scrubbers, SCR and Marine Air Emissions: Erosion and corrosion that gradually opens scrubber spray patterns and reduces efficiency.
Spray Pump X20. LNG Operations and Custody Transfer: Small deepwell pump in pump tower delivering LNG for cool-down spray and forcing vaporizer.
SPRC Cartagena X138. Global Container Terminal Operators and Port Equipment: Sociedad Portuaria Regional de Cartagena, Colombian operator of Contecar and Manga terminals.
Spread X13. Marine Salvage and Wreck Removal: Combination of vessels, equipment, and crew mobilised for a specific salvage job.
Spread Compression X49. Ship Finance, Leasing and Maritime Capital Markets: Tightening of lending margins during favorable credit cycles.
Spread layout X124. Dredging Industry and Reclamation Contractors: CSD anchor and pipeline plan for a project, defining advance pattern.
Spread mooring C4. Ports, terminals and coastal/marine civil engineering: Multi-line mooring pattern for moored offshore units.
Spreader X15. Ports, Terminals and Stevedoring: telescopic frame on STS and yard cranes engaging container corner castings.
Spreader (Tandem-40) X94. Port Machinery and Quay Equipment Makers: STS headblock with two telescopic spreaders side by side for lifting two 40-foot containers end-to-end.
Spreader (Twin-Twenty) X94. Port Machinery and Quay Equipment Makers: Telescopic spreader with center twistlocks allowing two adjacent 20-foot containers to be lifted simultaneously.
Spreader Bar X9. Cargo Securing, Lashing and Stability Vocabulary: Lifting beam distributing load between hooks.