Glossary

Maritime glossary, terms beginning with R (page 8)

All maritime glossary terms that begin with the letter R, drawn from every subject section. 2097 entries.

Showing 250 of 2097 terms (page 8 of 9).

Rotor sail wash interaction X38. Propellers, Stern Gear and Shaft Lines: Influence of rotor sail downwash on stern flow; relevant to propeller inflow on retrofits.
Rotor Tug X79. Tugs and Towage Industry: Multi-thruster tug design developed under the Kooren and Kotug brands featuring three azimuth thrusters.
Rotors Running Refuel X31. Helicopter Operations on Ships: See Hot Refuel.
RotorTug (ART) X30. Tug Operations and Harbour Towage: Three-azimuth-thruster tug with two thrusters forward and one aft, developed by KOTUG.
Rotterdam F1. Maritime History: Major Dutch port historically central to European trade.
Rotterdam Botlek X135. Chemical Tanker Operators and IBC Code Cargoes: Largest European chemical cluster with Odfjell, Stolthaven, Vopak Botlek, ETT and ITC terminals serving regular parcel-tanker rotations.
Rotterdam Bunker Hub X115. Marine Bunker and Cargo Surveying: Northwest European bunkering center within the ARA region, the largest bunker port in Europe by volume.
Rotterdam Bunker Range X72. Bunkering Hubs and Bunker Suppliers: Combined bunker market at the Port of Rotterdam supplied by Vopak, GP Global, Argos, Shell Pernis, Bomin, and TotalEnergies.
Rotterdam Bunker Statement X72. Bunkering Hubs and Bunker Suppliers: Monthly bunker sales statistics published by Port of Rotterdam Authority breaking down VLSFO, HSFO, MGO, biofuel blends, and LNG.
Rotterdam Cool Port X136. Reefer Vessels and Cool Chain Operators: Reefer container hub at Rotterdam Maasvlakte, integrating reefer ship and reefer container services with cold storage operators.
Rotterdam ECA X165. Marine Coatings, Antifouling, and Hull Husbandry: Emission Control Area context affecting solvent emissions during coating application in port works.
Rotterdam Energy Port and Petrochemicals (REPP) X119. Maritime Conferences, Trade Shows and Awards: Annual Petrospot bunker conference held in Rotterdam.
Rotterdam Hydrogen Master Plan X140. Ammonia as Marine Fuel and Hydrogen Shipping: Port of Rotterdam target of 18 Mtpa imported H2-equivalent by 2050, 60 percent as ammonia.
Rotterdam LNG Bunkering X110. LNG Bunkering Infrastructure and Vessels: LNG bunker operations at the Port of Rotterdam, anchored by the Gate Terminal at Maasvlakte and served by Cardissa and Optimus.
Rotterdam Mainport Institute X121. Maritime Education, Academies and Universities: STC Group facility on Lloydkade, Rotterdam, integrated with Hogeschool Rotterdam.
Rotterdam Maritime Capital of Europe X119. Maritime Conferences, Trade Shows and Awards: Annual networking week launched 2018 by Port of Rotterdam.
Rotterdam Maritime Capital Reference F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Generic example of maritime reference data.
Rotterdam Maritime Cluster F3. Seafaring Life, Education, Professions and Institutions: Dutch port-city service hub.
Rotterdam Maritime Museum F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Maritiem Museum Rotterdam.
Rotterdam OPL X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: Off Port Limits anchorage rarely used for bunker delivery owing to robust in-port supply at Maasvlakte and Botlek.
Rotterdam Pilots X32. Marine Pilotage and Pilot Operations: Loodswezen Region Rotterdam-Rijnmond, Dutch pilots serving Europoort and Rotterdam.
Rotterdam Provisioning X120. Marine Catering, Provisions and Ship Chandlers: Largest European provisioning hub, with major chandlers including Wilhelmsen Ships Service and Marine Care.
Rotterdam Repair Cluster X113. Drydock and Ship Repair Yards: Cluster of repair yards in the Port of Rotterdam including Damen Shiprepair Rotterdam, Shipdock, and Smulders.
Rotterdam Rules A5. Maritime Law, private and commercial: UN Convention on Contracts for the International Carriage of Goods Wholly or Partly by Sea, 2009, not yet in force.
Rotterdam Rules 2009 X51. Maritime Arbitration, Law and BIMCO Clauses: The United Nations Convention on Contracts for the International Carriage of Goods Wholly or Partly by Sea, not yet in force.
Rotterdam School of Management Erasmus Shipping X121. Maritime Education, Academies and Universities: Logistics and shipping management MBA tracks.
Rotterdam TTF X20. LNG Operations and Custody Transfer: Title Transfer Facility, European natural gas price benchmark used in LNG indexation.
Rotterdam World Gateway X15. Ports, Terminals and Stevedoring: RWG, automated container terminal at Maasvlakte II.
Rotterdam World Gateway (RWG) X94. Port Machinery and Quay Equipment Makers: Maasvlakte II container terminal using Kalmar automated stacking cranes and battery-electric AGVs.
Rouen X39. Pre-1900 Maritime History: Norman Seine port with a long history of medieval and early modern maritime trade.
Rough Log X155. Marine Surveying Practice and Cargo Inspection: The handwritten contemporaneous notebook from which the fair log is transcribed, often more probative in disputes.
Rough weather boarding X32. Marine Pilotage and Pilot Operations: Pilot transfer in adverse conditions, with helicopter as alternative.
Roughness X165. Marine Coatings, Antifouling, and Hull Husbandry: Hull surface deviation contributing to frictional drag, expressed as AHR average hull roughness or as Ra arithmetic mean.
Roughness allowance (CA) B1. Naval Architecture: Correlation allowance for ship-scale roughness.
Roughness Average X88. Marine Surface Preparation and Coatings Application: Arithmetic mean of profile departures from a mean line, denoted Ra and measured by stylus instrument.
Roughness average Ra X45. Marine Paints, Coatings and Antifouling: Statistical mean of profile heights, used in hull roughness assessment.
Round 1 X42. Offshore Wind Installation and Cable Lay: UK Crown Estate first offshore wind leasing round in 2001 awarding 18 small lease areas.
Round 2 X42. Offshore Wind Installation and Cable Lay: UK Crown Estate second leasing round in 2003 awarding 15 medium sized projects.
Round 3 X42. Offshore Wind Installation and Cable Lay: UK Crown Estate third leasing round launched in 2008 enabling gigawatt scale zones including Dogger Bank and East Anglia.
Round 4 X42. Offshore Wind Installation and Cable Lay: UK Crown Estate fourth leasing round concluded in 2021 with seven projects across English and Welsh waters.
Round Haul Net X87. Fishing Vessels and Fisheries Management: Family of encircling nets including purse seines and lampara nets.
Round in X3. Ship Handling, Seamanship and Deck Vocabulary: Haul in on a tackle.
Round Island wave site X57. Ocean Energy Beyond Wind: Generic reference to Caribbean wave resource assessments.
Round of inspection X19. Engine Room Watchkeeping and UMS Operations: Engine room walkdown by the watch engineer.
Round Ship X39. Pre-1900 Maritime History: General medieval European term for a beamy cargo vessel as opposed to the narrow galley.
Round Sling X9. Cargo Securing, Lashing and Stability Vocabulary: Endless synthetic sling.
Round Trip X103. US Inland Waterway Towing and Barge: A complete loaded and ballast cycle for a tow between two endpoints.
Round trip sample X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Sample handed to supplier and returned unopened, used in some custody-transfer regimes.
Round Trip Time Charter (RTTC) X44. Shipping Indices, FFAs and Freight Markets: Time charter structure for a single round voyage, frequently used as the building block of Baltic time charter route definitions.
Round turn X3. Ship Handling, Seamanship and Deck Vocabulary: Single complete turn of a rope around a post.
Round up X3. Ship Handling, Seamanship and Deck Vocabulary: Bring a vessel head to wind.
Round Voyage X17. Chartering, Shipbroking and Freight Trading: Voyage returning the vessel to the loading region after discharge.
Round Voyage Clause X51. Maritime Arbitration, Law and BIMCO Clauses: A voyage charter provision regulating carriage on the outbound and return legs as a single venture.
Round Voyage Estimation X44. Shipping Indices, FFAs and Freight Markets: Calculation summing voyage revenues and costs across loaded and ballast legs to derive a single round voyage TCE.
Round-trip time X15. Ports, Terminals and Stevedoring: truck cycle time including in-terminal moves.
Roundhead X175. Port Engineering, Dredging, Breakwaters, and Quays: Outer end of a breakwater, typically armoured with larger units due to higher local wave forces.
Rourkela X92. Marine Steel Suppliers and Shipbuilding Plate: SAIL integrated steel plant in Odisha, India, producing plate, coil, and pipe.
Route Adaptation X109. Maritime Autonomous Surface Ships and MASS Code: An autonomy function that revises the planned route in response to weather, traffic, or operator instructions.
Route du Rhum F4. Recreational Boating, Yachting and Sport: French solo transatlantic race held every four years.
Route Engineering Survey (RES) X122. Submarine Cable Laying, Repair Vessels and Operators: Detailed pre-installation marine survey with multibeam, sub-bottom profiler and side scan, the basis for the as-planned route.
Route Exchange Format (RTZ) E3. Technology, digitalization and smart shipping: IEC 61174-compliant interoperable route format.
Route monitoring X16. Nautical Science, Navigation and COLREGs: ECDIS function for monitoring vessel against the planned route.
Route monitoring (ECDIS) B3. Nautical Science: Display of own ship on planned route.
Route Optimization X78. Voyage Optimization and Vessel Performance Software: The selection of a vessel route, speed profile, and steaming plan to minimize an objective such as fuel, time, risk, or cost subject to weather and operational constraints.
Route Plan X73. Marine Hydrography, Charting and ENC: A waypoint-based passage plan validated against an ENC by an ECDIS.
Route planning X16. Nautical Science, Navigation and COLREGs: ECDIS function for designing the planned route.
Route Position List (RPL) X91. Submarines and Submarine Cable Systems: Engineering document defining the planned route and as-laid geometry of a submarine cable.
Route Sharing X73. Marine Hydrography, Charting and ENC: An emerging S-421 product specification for exchange of route plans.
Route Survey X43. Marine Surveying and Warranty Surveying: A pre-tow or pre-transit assessment of bathymetry, weather, and traffic along a planned voyage, especially for heavy lift or offshore tows.
Route Survey Engineer X104. Project Cargo Forwarders and Heavy Transport: Engineer assessing roads, bridges, and crossings for an oversize move.
Routeing measure (Polar) X27. Polar Code, Ice Navigation and Polar Operations: IMO-adopted routeing such as the Bering Strait two-way route.
Routeing Measures A2. Maritime safety legislation: SOLAS and its codes: Adopted under SOLAS V/10.
Router (vessel) X68. Maritime Satcom and Telecommunications: Onboard device that routes traffic between vessel networks and one or more satellite or cellular links.
Routine Husbandry Visit X86. Port Agency, Husbandry and Disbursement: Routine husbandry stop without significant cargo operations.
Routine IHM Updating X28. Ship Recycling and End-of-Life: Periodic update of Part I during the ship's operational life.
Routine Inspection X5. Marine Surveying and Inspection: Periodic inspection by crew, owner, or class.
Routine maintenance C2. Ship operations, crewing and technical management: Maintenance executed on a schedule.
Routine Reporting, Yard to Authority X50. Ship Recycling, Demolition and Hong Kong Convention: The HKC Regulation 17 yard activity reporting to the competent authority.
Routine survey (PSC) B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Port State inspection at port call.
Routine Update X48. Maritime Cybersecurity: Scheduled application of patches, signatures, and configuration changes.
Routing alarm X19. Engine Room Watchkeeping and UMS Operations: Diversion of alarm signals to cabins or duty engineer pager.
Routing Application X54. Naval Architecture Software and IACS Rules: Plant design module for piping and cable routing in AVEVA E3D, Foran, and CADMATIC.
Routing order X6. Container, Intermodal and Trade Codes: Buyer's instruction specifying the carrier and routing to be used by the shipper.
Routing Policy X68. Maritime Satcom and Telecommunications: Configured rules determining which traffic uses which available link.
Routing Risk X44. Shipping Indices, FFAs and Freight Markets: Exposure that arises when physical voyages deviate from the standardized routes underlying their FFA hedges.
Routing Through HRA X22. Piracy, Maritime Security and Armed Protection: Passage planning factoring naval escort timings, weather and recent incidents.
ROV X13. Marine Salvage and Wreck Removal: Remotely Operated Vehicle used for survey, hot tap support, and deep salvage work.
ROV (Remotely Operated Vehicle) D5. Coastal processes, sea-level, cryosphere and ocean observation science: Tethered underwater robot.
ROV CP Survey X100. Marine Cathodic Protection and Anodes: An offshore cathodic protection survey performed with reference electrodes and probes mounted on a remotely operated vehicle.
ROV interface X65. ROVs, AUVs, USVs and Marine Robotics: Set of standardized handles, buckets and torque tool receptacles defined by API 17H and ISO 13628-8.
ROV mine disposal X77. Naval Mine Warfare and Mine Countermeasures: The technique of placing a shaped charge on or beside a mine via a remotely operated vehicle.
ROV Support X82. Saturation Diving and Offshore Diving Operations: Use of an ROV to assist or supervise diver work.
ROV Survey X60. Marine Salvage and Wreck Removal: Use of remotely operated vehicles for underwater inspection of casualties and wrecks.
ROV-Equipped Cable Recovery Vessel X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Cableship configured with deepwater work-class ROVs for grapnel runs and cable cutting.
ROV-friendly valve X65. ROVs, AUVs, USVs and Marine Robotics: Subsea valve designed with a hot stab or ROV bucket interface so it can be actuated by a vehicle manipulator without diver intervention.
ROV-Mounted MBES X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Multibeam mounted on a remotely operated vehicle for close-range high-resolution mapping of subsea infrastructure.
Rove X3. Ship Handling, Seamanship and Deck Vocabulary: Past tense of reeve, passing a rope through a block.
ROVSV X14. Offshore Oil and Gas Marine Operations: ROV support vessel.
Row X46. Container Terminal Operations: A transverse position number within a bay on a container vessel, with even numbers to port and odd to starboard from the centerline.
Rowan Gorilla VII X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Marathon LeTourneau Gorilla-class jackup operated under the Valaris ARO Drilling joint venture.
Rowan Renaissance X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Drillship inherited by Valaris from Rowan Companies.
Rowan Resolute X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Drillship in the Valaris fleet inherited from Rowan.
Royal African Company X39. Pre-1900 Maritime History: English chartered company of 1672 with a monopoly of the West African trade including slaves.
Royal Albatross X10. Marine Biology, Fisheries and Oceanography: *Diomedea epomophora* and *Diomedea sanfordi* of the Southern Ocean.
Royal Alfred Seafarers' Society X154. Maritime Welfare, Seafarer Charities, and MLC Rights: UK charity founded 1865 providing residential care for retired seafarers in Surrey.
Royal Australian Mission to Seafarers X102. Seafarer Welfare and Maritime Charities: Australian Anglican mission to seafarers, part of The Mission to Seafarers global network.
Royal Australian Navy X11. Naval Vessels, Warship Systems and Naval Architecture: Naval service of Australia, RAN.
Royal Belgian Institute of Marine Engineers X55. Marine Simulators, Training and Maritime Academies: National professional body recognized by IMarEST for Belgian marine engineers.
Royal Belgian Shipowners' Association F3. Seafaring Life, Education, Professions and Institutions: Industry body in Antwerp.
Royal Bermuda Regiment Admin (Bermuda Shipping and Maritime Authority) X156. Superyacht Industry, Builders, and Yacht Charter Market: Bermuda Shipping and Maritime Authority operating the Bermuda flag, a Red Ensign Category 1 registry.
Royal Bodewes X58. Shipbuilding Yards and Construction: Dutch shipbuilder at Hoogezand building general cargo and multipurpose vessels.
Royal Boskalis Westminster X60. Marine Salvage and Wreck Removal: Parent company of Boskalis Salvage and Boskalis Heavy Lift.
Royal Canadian Navy X11. Naval Vessels, Warship Systems and Naval Architecture: Naval service of Canada, RCN.
Royal Cargo IS C3. Logistics, freight forwarding and multimodal trade: Example of cargo logistics IT, not exhaustive.
Royal Caribbean Bunker Desk X72. Bunkering Hubs and Bunker Suppliers: In house bunker procurement function of Royal Caribbean Group covering cruise fleet stems.
Royal Caribbean Group X24. Cruise, Passenger Ship and Ferry Operations: Parent of Royal Caribbean International, Celebrity Cruises, and Silversea.
Royal Caribbean International X24. Cruise, Passenger Ship and Ferry Operations: Contemporary brand within Royal Caribbean Group.
Royal class X24. Cruise, Passenger Ship and Ferry Operations: Princess Cruises class introduced 2013 with Royal Princess.
Royal Commission inquiry (historical) X163. Marine Accident Investigation Agencies and Landmark Inquiries: Higher-tier inquiry mechanism in the United Kingdom and other Commonwealth jurisdictions, used historically for severe maritime disasters.
Royal Cork Yacht Club X35. Yacht and Superyacht Industry: Yacht club in Crosshaven, Ireland, founded 1720, claiming the title of world's oldest yacht club.
Royal De Vries X35. Yacht and Superyacht Industry: Dutch Feadship yard in Makkum and Aalsmeer.
Royal Denship X125. Superyacht Industry, Builders and Brokers: Defunct Danish yacht brand.
Royal Dock X59. Offshore Wind O&M, CTVs and SOVs: See Grimsby Royal Dock.
Royal Falcon Fleet X125. Superyacht Industry, Builders and Brokers: Yacht Plus and similar crewed charter brands.
Royal Fleet Auxiliary X11. Naval Vessels, Warship Systems and Naval Architecture: RFA, civilian-manned RN logistics fleet.
Royal George, HMS X39. Pre-1900 Maritime History: First-rate Royal Navy ship of the line that capsized at Spithead on August 29, 1782 with the loss of around 800 lives.
Royal Greenland A/S X131. Commercial Fisheries, Trawler Fleets and Seafood Processors: Greenland government-owned coldwater shrimp processor, the world's largest cold-water prawn supplier.
Royal Hakvoort X156. Superyacht Industry, Builders, and Yacht Charter Market: Dutch custom yacht builder at Monnickendam, sister yard within the Hakvoort group.
Royal Helena X128. Sail Training Ships and Tall Ship Associations: Bulgarian three masted topsail schooner built 2017 in Varna, 54 m length, civilian sail training and charter vessel, regular STI Tall Ships Races participant.
Royal Hellenic Navy Sailing X128. Sail Training Ships and Tall Ship Associations: Hellenic Navy operates the brigantine Eugenios Eugenides as a Hellenic Naval Academy training vessel.
Royal Huisman X35. Yacht and Superyacht Industry: Dutch sailing-superyacht builder in Vollenhove.
Royal IHC X58. Shipbuilding Yards and Construction: Dutch shipbuilder specialized in dredgers and offshore mining vessels.
Royal IHC Trencher Range X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Series of subsea trenching machines used in cable installation worldwide.
Royal Institution of Naval Architects X121. Maritime Education, Academies and Universities: See RINA.
Royal Mail Ransomware (January 2023) X148. Maritime Cybersecurity, IACS Cyber Rules, and Incidents: The 10 January 2023 LockBit attack that suspended Royal Mail International export services for weeks.
Royal Mail Steam Packet Company X39. Pre-1900 Maritime History: Chartered in 1839 to carry mail to the West Indies under Captain James MacQueen.
Royal Marechaussee Maritime X130. National Coast Guards and Cutter Fleets: Dutch Koninklijke Marechaussee district handling maritime border police along Wadden Sea.
Royal Marines Association X102. Seafarer Welfare and Maritime Charities: UK association of serving and former Royal Marines, with welfare and benevolent functions.
Royal Marines Charity X102. Seafarer Welfare and Maritime Charities: UK service charity supporting Royal Marines and their families.
Royal Museums Greenwich F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Group including the National Maritime Museum, Royal Observatory, and Cutty Sark.
Royal Naval Association X102. Seafarer Welfare and Maritime Charities: UK association of serving and former Royal Navy personnel, with welfare branches around the country.
Royal Navy F1. Maritime History: Naval forces of the United Kingdom, the senior service since the sixteenth century.
Royal Navy Britannia Royal Naval College X160. Maritime Academies, Universities, and STCW Certification: UK Royal Navy officer initial training establishment at Dartmouth Devon founded in 1863.
Royal Navy Hospital Haslar X39. Pre-1900 Maritime History: Naval hospital at Gosport opened in 1753 and the largest brick building in Europe at the time.
Royal Navy Naval Service Welfare X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Distinct from merchant welfare, occasionally cooperating via Trinity House and SSAFA.
Royal Navy Submarine School X121. Maritime Education, Academies and Universities: Faslane, training Royal Navy submariners, sometimes referenced alongside merchant academies for simulator partnership.
Royal Netherlands Navy X77. Naval Mine Warfare and Mine Countermeasures: Operator of Alkmaar-class minehunters and partner in the Belgian-Dutch rMCM program.
Royal Niestern Sander X58. Shipbuilding Yards and Construction: Dutch shipbuilder at Delfzijl building ferries and special purpose vessels.
Royal Princess X64. Cruise Industry Operators, Brands and Ships: First Princess Cruises Royal-class ship delivered in 2013.
Royal Research Ship X133. Polar Research Vessels and Polar Code Regimes: UK designation prefix for vessels including RRS Discovery, RRS James Cook and RRS Sir David Attenborough.
Royal Smit Tak X60. Marine Salvage and Wreck Removal: Historic name of the Rotterdam salvor founded in 1842 and now part of Boskalis Salvage.
Royal Society X39. Pre-1900 Maritime History: Founded in 1660 and central to the British promotion of scientific navigation and exploration.
Royal Tar X39. Pre-1900 Maritime History: Steamer lost off Vinalhaven, Maine in October 1836 while carrying a circus.
Royal Van Lent X35. Yacht and Superyacht Industry: Dutch Feadship yard in Aalsmeer and Kaag.
Royal Van Lent Shipyard X156. Superyacht Industry, Builders, and Yacht Charter Market: Dutch yard at Kaag, part of the Feadship consortium since 1949.
Royal William, SS F1. Maritime History: 1833 Canadian-built early transatlantic steam crossing.
Royal Yacht Britannia F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Preserved at Edinburgh's Port of Leith since 1998.
Royal Yacht Squadron X35. Yacht and Superyacht Industry: Historic UK yacht club at Cowes, Isle of Wight, founded 1815.
Royal Yachting Association (RYA) X84. Yacht Racing, Regattas and Sailing Governance: The national governing body for sailing in the United Kingdom.
Royal Yachting Association (RYA) Sail Training X128. Sail Training Ships and Tall Ship Associations: UK national governing body that, with UK Sail Training charity, represents Britain at Sail Training International.
Royale International X104. Project Cargo Forwarders and Heavy Transport: Hong Kong-headquartered logistics group with project and time critical divisions.
RP-OSCS X126. Marine Oil Spill Response and OPRC Regimes: IPIECA Reference Profile, Oil Spill Containment System.
RPL X122. Submarine Cable Laying, Repair Vessels and Operators: Route Position List, the cumulative kilometer reference defining cable positions, repeater locations and slack along the system.
RPM indicator X19. Engine Room Watchkeeping and UMS Operations: Tachometer showing engine or shaft speed.
RPMA X148. Maritime Cybersecurity, IACS Cyber Rules, and Incidents: A long-range industrial wireless technology occasionally used at terminals.
RPO Recovery Point Objective X25. Maritime Cybersecurity, OT and IT: Maximum acceptable data loss measured in time.
RPS X42. Offshore Wind Installation and Cable Lay: Reference engineering consultancy active in offshore wind environmental services.
RPS Oceans and Coastal X126. Marine Oil Spill Response and OPRC Regimes: Consultancy specializing in spill modeling with OILMAP and SIMAP, acquired by Tetra Tech in 2023.
RPSL X21. STCW Certificates, Crewing and Seafarer Welfare: Recruitment and Placement Service Licence issued under MLC Regulation 1.4, including the Indian DGS scheme.
RS X7. Flag State, Port State Control and Detention Vocabulary: Russian Maritime Register of Shipping, IACS member headquartered in St Petersburg.
RS (Russian Maritime Register of Shipping) X5. Marine Surveying and Inspection: IACS member classification society.
RS (Russian Maritime Register) X38. Propellers, Stern Gear and Shaft Lines: Russian classification society publishing rules for shafting and propellers, including ice classes.
RS Aero X84. Yacht Racing, Regattas and Sailing Governance: A modern single-handed dinghy designed by Jo Richards and produced by RS Sailing.
RS Platou X49. Ship Finance, Leasing and Maritime Capital Markets: Norwegian shipbroker and project finance house that merged with Clarksons in 2014.
RS Surveyor X43. Marine Surveying and Warranty Surveying: A field surveyor employed by the Russian Maritime Register of Shipping for classification and statutory work.
RS200 X84. Yacht Racing, Regattas and Sailing Governance: A two-handed asymmetric dinghy by RS Sailing.
RS400 X84. Yacht Racing, Regattas and Sailing Governance: A two-handed asymmetric dinghy by RS Sailing.
RS500 X84. Yacht Racing, Regattas and Sailing Governance: A two-handed asymmetric dinghy by RS Sailing.
RSA Marine X145. P&I Clubs, War Risk Insurers, and Marine Insurance Markets: Royal Sun Alliance marine line.
RSB X111. Methanol, Ammonia and Alternative Marine Fuels: Roundtable on Sustainable Biomaterials, an international sustainability certification body covering marine biofuels.
RSD-E Tug 2513 X30. Tug Operations and Harbour Towage: Fully electric variant of the Damen RSD Tug 2513.
RSI X124. Dredging Industry and Reclamation Contractors: Royal Schelde Industries, historic Dutch builder of dredgers absorbed into Damen.
RSPCA X126. Marine Oil Spill Response and OPRC Regimes: UK Royal Society for the Prevention of Cruelty to Animals, oiled wildlife responder.
RSPO X111. Methanol, Ammonia and Alternative Marine Fuels: Roundtable on Sustainable Palm Oil, a certification scheme used where palm-derived FAME enters marine biofuel blends.
RT X6. Container, Intermodal and Trade Codes: Refrigerated Tank container or, in another usage, Revenue Ton.
RTC X6. Container, Intermodal and Trade Codes: Reefer Tank Container.
RTCM X80. Maritime Search and Rescue Coordination: Radio Technical Commission for Maritime Services, source of beacon standards.
RTCM SC-104 X148. Maritime Cybersecurity, IACS Cyber Rules, and Incidents: The Radio Technical Commission for Maritime Services special committee responsible for DGNSS standards.
RTE X57. Ocean Energy Beyond Wind: Réseau de Transport d'Electricité, the French transmission system operator that connects tidal stream projects in Brittany.
RTECS Number X75. IMDG Code, Classes, Packing and Segregation: Registry of Toxic Effects of Chemical Substances number; not a UN identifier but useful in supporting documentation.
RTG X6. Container, Intermodal and Trade Codes: Rubber-Tyred Gantry crane in container yards.
RTG (Rubber-Tyred Gantry) X46. Container Terminal Operations: A self-propelled rubber-tired portal crane that straddles a stack of containers in the yard, typically six or seven containers wide and four to six high.
RTG crane C4. Ports, terminals and coastal/marine civil engineering: Rubber tyred gantry crane in container yards.
RTI Trinidad X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: Petrotrin successor bunker operation, now under Heritage Petroleum Company.
RTK (Real-Time Kinematic) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: GNSS positioning technique delivering centimeter-level horizontal and vertical accuracy in real time, used for GNSS-tide survey workflows.
RTK Coastal Survey D5. Coastal processes, sea-level, cryosphere and ocean observation science: Real-time kinematic GPS surveying of coasts.
RTK Tide Gauge D2. Hydrography, tides, waves, bathymetry and marine geology: Real-time kinematic positioning used to support tide gauge benchmarks.
RTO Recovery Time Objective X25. Maritime Cybersecurity, OT and IT: Maximum acceptable time to restore service after disruption.
RTTI X80. Maritime Search and Rescue Coordination: Real Time Tracking Information used by SMCs to monitor SRUs.
RTU X48. Maritime Cybersecurity: Remote Terminal Unit used in distributed industrial control architectures.
RTU (Remote Terminal Unit) X139. Maritime Cybersecurity, OT Threats and Standards: OT device used in offshore platforms and shore facilities, addressed by IEC 62443-4-2.
Rubber coating X45. Marine Paints, Coatings and Antifouling: Elastomeric coating used on rudders and specific hull components for abrasion resistance.
Rubber Mat X9. Cargo Securing, Lashing and Stability Vocabulary: Anti-skid mat raising mu to 0.6 or higher.
Rubber sleeve seal X38. Propellers, Stern Gear and Shaft Lines: Auxiliary rubber sleeve type used as a temporary stern-tube seal for repair at sea.
Rubber-Tired Gantry (RTG) X94. Port Machinery and Quay Equipment Makers: Wheeled container yard crane spanning multiple container rows for stacking laden boxes.
Rubber, Natural X1. Cargo Science, Commodities and Cargo Care: Breakbulk in pressed bales.
Rubble Field X52. Polar Code, Arctic and Antarctic Shipping: Area of randomly oriented broken ice fragments formed by ice pressure or grounding.
Rubble mound breakwater C4. Ports, terminals and coastal/marine civil engineering: Breakwater using armour stone and underlayers.
Ruby Princess X24. Cruise, Passenger Ship and Ferry Operations: Princess Cruises ship at the center of a major COVID-19 outbreak in Sydney in March 2020.
Rudder X3. Ship Handling, Seamanship and Deck Vocabulary: Hinged blade aft used to steer.
Rudder angle indicator X3. Ship Handling, Seamanship and Deck Vocabulary: Bridge display showing rudder position.
Rudder Anode X100. Marine Cathodic Protection and Anodes: A sacrificial anode mounted on the rudder blade or stock to protect the rudder structure.
Rudder bulb X38. Propellers, Stern Gear and Shaft Lines: Streamlined bulb on the rudder leading edge aligned with the propeller hub to recover hub-vortex energy.
Rudder hinge X18. Ballast Water, Biofouling and Antifouling: Niche area with crevices and stagnation prone to fouling.
Rudder horn B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Structural rudder support cast or fabricated.
Rudder Inspection X113. Drydock and Ship Repair Yards: Drydock survey of rudder horn, stock, bearings, and pintles, with carrier bearing wear-down measurement.
Rudder lift coefficient X38. Propellers, Stern Gear and Shaft Lines: Non-dimensional rudder force coefficient, function of rudder angle, profile, and slipstream.
Rudder propeller (Schottel) X38. Propellers, Stern Gear and Shaft Lines: Schottel term for an azimuth thruster (SRP, STP), where the propeller and duct rotate together for steering.
Rudder stock B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Forged shaft transmitting rudder torque.
Rudder Survey X5. Marine Surveying and Inspection: Inspection of rudder plating, pintles, bearings, and stops.
RUF X22. Piracy, Maritime Security and Armed Protection: Rules for the Use of Force governing PCASP engagement, distinct from military Rules of Engagement.
Ruim Wave X57. Ocean Energy Beyond Wind: Generic label used in early wave energy resource mapping in southern Europe.
Rule 10 (TSS) X16. Nautical Science, Navigation and COLREGs: Conduct of vessels in or near traffic separation schemes adopted by the IMO.
Rule 11 to 18 X16. Nautical Science, Navigation and COLREGs: Conduct of vessels in sight of one another, including head-on, crossing, overtaking, sailing vessels and responsibilities.
Rule 12 X16. Nautical Science, Navigation and COLREGs: Conduct of sailing vessels.
Rule 13 (Overtaking) X16. Nautical Science, Navigation and COLREGs: Overtaking vessel shall keep out of the way.
Rule 14 (Head-on situation) X16. Nautical Science, Navigation and COLREGs: Each vessel shall alter course to starboard.
Rule 144A X49. Ship Finance, Leasing and Maritime Capital Markets: SEC rule enabling resale of restricted securities to QIBs, used by larger shipping bond issuers.
Rule 15 (Crossing situation) X16. Nautical Science, Navigation and COLREGs: Vessel which has the other on her starboard side shall keep out of the way.
Rule 16 (Action by give-way vessel) X16. Nautical Science, Navigation and COLREGs: Take early and substantial action.
Rule 17 (Action by stand-on vessel) X16. Nautical Science, Navigation and COLREGs: Maintain course and speed, with permitted action when give-way fails.
Rule 18 (Responsibilities between vessels) X16. Nautical Science, Navigation and COLREGs: Hierarchy of stand-on/give-way among vessel categories.
Rule 19 (Restricted visibility) X16. Nautical Science, Navigation and COLREGs: Conduct of vessels not in sight of one another in restricted visibility.
Rule 20 to 31 (Lights and shapes) X16. Nautical Science, Navigation and COLREGs: Carriage and characteristics of navigation lights and day shapes.
Rule 22 (Visibility of lights) X16. Nautical Science, Navigation and COLREGs: Minimum visibility ranges by vessel length.
Rule 23 (Power-driven vessels underway) X16. Nautical Science, Navigation and COLREGs: Lights to be exhibited.
Rule 24 (Towing and pushing) X16. Nautical Science, Navigation and COLREGs: Lights and shapes for vessels engaged in towing.
Rule 25 (Sailing vessels and vessels under oars) X16. Nautical Science, Navigation and COLREGs: Required lights and shapes.
Rule 26 (Fishing vessels) X16. Nautical Science, Navigation and COLREGs: Lights and shapes when engaged in fishing.
Rule 27 (Not under command and restricted in ability to maneuver) X16. Nautical Science, Navigation and COLREGs: Lights and shapes.
Rule 28 (Vessels constrained by their draught) X16. Nautical Science, Navigation and COLREGs: Optional lights and shapes.
Rule 29 (Pilot vessels) X16. Nautical Science, Navigation and COLREGs: Lights and shapes.
Rule 30 (Anchored vessels and vessels aground) X16. Nautical Science, Navigation and COLREGs: Lights and shapes.
Rule 31 (Seaplanes and WIG craft) X16. Nautical Science, Navigation and COLREGs: Lights and shapes.
Rule 32 to 37 (Sound and light signals) X16. Nautical Science, Navigation and COLREGs: Equipment, maneuvering and warning signals, restricted visibility, attention and distress signals.
Rule 33 (Equipment for sound signals) X16. Nautical Science, Navigation and COLREGs: Required whistle and bell.
Rule 34 (Maneuvering and warning signals) X16. Nautical Science, Navigation and COLREGs: One short, two short, three short and five-or-more short.
Rule 35 (Sound signals in restricted visibility) X16. Nautical Science, Navigation and COLREGs: Required fog signals.
Rule 36 (Signals to attract attention) X16. Nautical Science, Navigation and COLREGs: Use of light or sound.
Rule 37 (Distress signals) X16. Nautical Science, Navigation and COLREGs: Reference to Annex IV.