Glossary

Maritime glossary, terms beginning with P (page 5)

All maritime glossary terms that begin with the letter P, drawn from every subject section. 2685 entries.

Showing 250 of 2685 terms (page 5 of 11).

Pilot Booking X86. Port Agency, Husbandry and Disbursement: Reservation of pilots with the local pilot organization.
Pilot card B3. Nautical Science: Standard A4 card given to pilot.
Pilot Card Deficiency X146. Port State Control Regimes, MoUs, and Inspection Systems: A 10xxx deficiency where the pilot card is not available or incomplete, a common minor finding.
Pilot Card Verification X155. Marine Surveying Practice and Cargo Inspection: A surveyor's check that the pilot card reflects current trim, displacement, and maneuvering characteristics.
Pilot chart X16. Nautical Science, Navigation and COLREGs: Chart showing average meteorological and oceanographic data by month.
Pilot Cutter X30. Tug Operations and Harbour Towage: Pilot transfer launch, distinct from harbor tugs but often colocated.
Pilot door X32. Marine Pilotage and Pilot Operations: Hinged hull door on large vessels through which the pilot boards directly without climbing to deck level.
Pilot dues X32. Marine Pilotage and Pilot Operations: Statutory pilotage charges levied by an authority.
Pilot embarkation X3. Ship Handling, Seamanship and Deck Vocabulary: Procedure for taking a pilot on board, usually via pilot ladder.
Pilot error X12. Maritime Casualties and Investigation: Causal classification when the pilot's actions are central to the casualty.
Pilot exchange X15. Ports, Terminals and Stevedoring: handover between deep-sea and harbor pilots.
Pilot Exciter X67. Marine Electrical Systems and Shore Power: Permanent magnet generator on the same shaft as a brushless main exciter, providing AVR power independent of residual magnetism.
Pilot fee X32. Marine Pilotage and Pilot Operations: Charge for pilotage services.
Pilot Fee Settlement X86. Port Agency, Husbandry and Disbursement: Settlement of pilotage fees through the agency disbursement.
Pilot flag X32. Marine Pilotage and Pilot Operations: Signal flag H meaning "I have a pilot on board".
Pilot Fuel D6. Decarbonization, emissions and alternative fuels: Small amount of conventional fuel igniting alternative fuel in dual-fuel engines.
Pilot helmet X32. Marine Pilotage and Pilot Operations: Personal protective helmet worn by pilots during transfer.
Pilot hoist X32. Marine Pilotage and Pilot Operations: Mechanical pilot lift, prohibited under SOLAS V/23 for primary transfer since 1 July 2012.
Pilot in charge X32. Marine Pilotage and Pilot Operations: Designation of the responsible pilot in multi-pilot operations.
Pilot Ladder F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Ladder constructed to SOLAS V/23 standards.
Pilot ladder certification X32. Marine Pilotage and Pilot Operations: Manufacturer's certificate confirming SOLAS V/23 and ISO 799 compliance.
Pilot Ladder Compliance X40. Tanker Vetting, SIRE and VIQ: Compliance with SOLAS V/23 and the IMO Pilot Transfer Arrangements, verified under VIQ Chapter 4.
Pilot Ladder Inspection X5. Marine Surveying and Inspection: SOLAS and IMPA compliance check of pilot ladder and rigging.
Pilot ladder lighting X32. Marine Pilotage and Pilot Operations: Dedicated illumination for the ladder during night transfer.
Pilot ladder magnet X32. Marine Pilotage and Pilot Operations: Magnetic securing device used in some combination arrangements.
Pilot ladder reel X32. Marine Pilotage and Pilot Operations: Storage reel for the pilot ladder when not in use.
Pilot ladder safety campaign X32. Marine Pilotage and Pilot Operations: IMPA's annual program documenting non-compliant pilot transfer arrangements.
Pilot ladder securing strop X32. Marine Pilotage and Pilot Operations: Heavy strop securing the head of the pilot ladder to a strong point on deck.
Pilot ladder spreader X32. Marine Pilotage and Pilot Operations: Wider step that prevents the ladder from twisting, minimum 1.8 m long.
Pilot launch X32. Marine Pilotage and Pilot Operations: Smaller pilot vessel for short-range pilot transfer.
Pilot lift X32. Marine Pilotage and Pilot Operations: Mechanical hoist for offshore pilot transfer at exposed terminals, certified for offshore use.
Pilot mark X32. Marine Pilotage and Pilot Operations: White painted line on the ship's side denoting the SWL at the pilot embarkation area.
Pilot of the watch X32. Marine Pilotage and Pilot Operations: Pilot on duty during a watch rotation at a station.
Pilot order X32. Marine Pilotage and Pilot Operations: Helm or engine order issued through the master or OOW by the pilot acting as advisor.
Pilot ordering X32. Marine Pilotage and Pilot Operations: Procedure for requesting a pilot, normally by ETA-based booking through agent.
Pilot Phone (vessel) X68. Maritime Satcom and Telecommunications: Dedicated satellite voice line typically routed for pilotage and port communications.
Pilot Plug X15. Ports, Terminals and Stevedoring: ECDIS data plug used by pilot PPUs.
Pilot Plug Functionality X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: The bridge equipment check ensuring portable pilot units can interface, verified under SIRE navigation chapters.
Pilot point X32. Marine Pilotage and Pilot Operations: Recommended pilot boarding location on coastal navigation charts.
Pilot pool X32. Marine Pilotage and Pilot Operations: Roster of available pilots at a station.
Pilot port X32. Marine Pilotage and Pilot Operations: Port where pilotage is provided.
Pilot Portable Unit (PPU) E3. Technology, digitalization and smart shipping: Pilot's own laptop/sensor for berthing.
Pilot recovery X32. Marine Pilotage and Pilot Operations: Disembarkation of the pilot at the outbound station.
Pilot relief X32. Marine Pilotage and Pilot Operations: Hand-over of pilotage between pilots mid-transit on long passages.
Pilot Service Provider X32. Marine Pilotage and Pilot Operations: Generic term for organizations supplying pilotage under contract or statute.
Pilot signal X32. Marine Pilotage and Pilot Operations: Flag H or radio call indicating a pilot is on board or required.
Pilot station X15. Ports, Terminals and Stevedoring: designated boarding area at sea.
Pilot station VHF X32. Marine Pilotage and Pilot Operations: Designated VHF channel for pilot station communications, varies by port.
Pilot Tone X68. Maritime Satcom and Telecommunications: Reference signal transmitted on a satellite carrier to aid receiver locking.
Pilot Trainer X55. Marine Simulators, Training and Maritime Academies: Specialized bridge simulator with ownship and tug models suited to port-specific pilotage training.
Pilot Transfer Arrangements A2. Maritime safety legislation: SOLAS and its codes: Required under SOLAS V/23.
Pilot Transfer Equipment X32. Marine Pilotage and Pilot Operations: Term used in MSC.1/Circ.1428 for the totality of pilot boarding gear.
Pilot vessel B5. Ship Types and Individual Vessels: Small craft for pilot transfer.
Pilot Vessel Charlie X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: International Code flag and shape combination historically used to identify a pilot vessel on station.
Pilot well (CCS) X57. Ocean Energy Beyond Wind: First injector drilled at an offshore storage site to confirm reservoir behavior before scaling up.
Pilot whale X10. Marine Biology, Fisheries and Oceanography: Large dolphins of the genus *Globicephala*.
Pilot's bag X32. Marine Pilotage and Pilot Operations: Personal bag containing portable pilotage unit, charts, and documents, retrieved by heaving line.
Pilot's lifejacket X32. Marine Pilotage and Pilot Operations: Inflatable lifejacket worn by pilots during transfer.
Pilot's PPU X32. Marine Pilotage and Pilot Operations: Portable Pilot Unit, the pilot's laptop-based ECDIS plus DGPS unit.
Pilotage B3. Nautical Science: Conduct of vessel by a licensed pilot.
Pilotage (NSR) X27. Polar Code, Ice Navigation and Polar Operations: Russian-licensed ice pilot may be required on certain NSR voyages.
Pilotage Act 1987 X32. Marine Pilotage and Pilot Operations: UK statute restructuring British pilotage and creating Competent Harbour Authorities, abolishing Trinity House pilotage districts in 1988.
Pilotage area X15. Ports, Terminals and Stevedoring: water area where compulsory pilotage applies.
Pilotage authority X32. Marine Pilotage and Pilot Operations: Statutory or harbor body administering pilotage services in a defined area.
Pilotage charge X32. Marine Pilotage and Pilot Operations: Generic term for pilot fees and dues.
Pilotage District F3. Seafaring Life, Education, Professions and Institutions: Statutorily defined area of compulsory pilotage.
Pilotage Dues X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: Charges levied on the vessel for the use of pilotage services, generally calculated on tonnage, draft, and time.
Pilotage Exemption Certificate X32. Marine Pilotage and Pilot Operations: Certificate enabling the master or chief mate to pilot a specific ship or class without engaging a pilot.
Pilotage Exemption Certificate (PEC) F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Master's qualification to dispense with compulsory pilotage.
Pilotage frequency requirement X32. Marine Pilotage and Pilot Operations: PEC qualifying threshold, typically 12 transits in 12 months, varies by jurisdiction.
Pilotage license X32. Marine Pilotage and Pilot Operations: License issued by a pilotage authority to a qualified pilot for a defined area.
Pilotage limits X32. Marine Pilotage and Pilot Operations: Geographic boundaries of a pilotage area.
Pilotage Plan Confirmation X86. Port Agency, Husbandry and Disbursement: Confirmation of pilotage plan by the agent for the master.
Pilotage Restriction Notice X86. Port Agency, Husbandry and Disbursement: Notice of pilotage restrictions affecting movement timings.
Pilotage Simulator X144. Bridge Simulators, Engine Room Simulators, and Maritime Training Equipment: Fast-time and real-time port simulation for harbour pilot training and infrastructure design.
Pilotage tariff X32. Marine Pilotage and Pilot Operations: Schedule of pilotage charges set by the authority.
Pilotage waters X32. Marine Pilotage and Pilot Operations: Waters in which pilotage services are available.
Pilothouse X103. US Inland Waterway Towing and Barge: The control station of a towing vessel.
Pilotstar X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Raytheon Anschutz autopilot and heading control system family for commercial vessels.
Pilotstar NX X89. ECDIS and Bridge Equipment Makers: Raytheon Anschutz autopilot integrated within SYNAPSIS NX.
Pilottown X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: Historical settlement at the mouth of the Mississippi River where Associated Branch Pilots' station operated.
PIM (Product Information Management) X120. Marine Catering, Provisions and Ship Chandlers: Chandler back-office system mapping IMPA, ISSA, GTIN, and internal codes.
Pin X6. Container, Intermodal and Trade Codes: See twistlock pin and chassis pin.
Pin (Towing Pin) X30. Tug Operations and Harbour Towage: Retractable pin guiding the towline on the working deck.
Pin and lug coupling X47. Marine Fuel Quality and ISO 8217: Standard hose end used on bunker hoses, common in IMO standardized bunker manifolds.
Pin Lock X83. ISO Container Manufacturing and Leasing: Twist lock used to secure containers to chassis or to other containers.
Pin pile X42. Offshore Wind Installation and Cable Lay: Pile driven through a jacket leg sleeve to secure the foundation to the seabed.
PIN-class antifouling X165. Marine Coatings, Antifouling, and Hull Husbandry: Generic informal term for biocide-released self-polishing copolymer used on long-haul tankers and bulkers.
Pine Walk X117. Marine Insurance Markets, Captives and Reinsurance: Fidelis Insurance Group's managing general agent platform underwriting via its Lloyd's syndicate.
Pineapple carriage X26. Reefer Containers and Cold Chain Logistics: 8 C, 85 to 90% RH; chilling injury below 7 C.
Pineapple Reefer X136. Reefer Vessels and Cool Chain Operators: Costa Rican pineapple exports moving in reefer containers to the United States and Europe, dominated by Del Monte, Dole, and Chiquita.
Pineapple reefer carriage X70. Reefer Containers and Cold Chain Shipping: Tropical fruit transported at plus seven to plus 13 degrees Celsius depending on maturity stage and intended market.
Pinger D5. Coastal processes, sea-level, cryosphere and ocean observation science: Acoustic device used in fisheries and observations.
Pinger Localization X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Acoustic positioning of subsea assets by transponder, often integrated with hydrographic survey workflows.
PingOne X107. Maritime Cybersecurity and OT Security: Cloud identity platform from Ping Identity.
Pinhole X45. Marine Paints, Coatings and Antifouling: Tiny hole in a coating film caused by trapped solvent or air, detected with a low-voltage holiday detector.
Pinion Steering Gear X63. Marine Auxiliary Machinery and Pumps: Steering arrangement using rack and pinion, applied on some small craft.
Pink Ammonia X140. Ammonia as Marine Fuel and Hydrogen Shipping: NH3 produced from nuclear-powered electrolysis.
Pinkster's frequency domain method X162. Naval Architecture, Stability, Resistance, and Structural Design: Mean and low-frequency wave drift force formulation widely used in seakeeping software.
Pinnace X39. Pre-1900 Maritime History: A small two-masted vessel of the seventeenth and eighteenth centuries used as a ship's tender or independent craft.
Pinnacle class X24. Cruise, Passenger Ship and Ferry Operations: Holland America class introduced 2016 with Koningsdam, around 99,500 GT.
Pinning Tug X30. Tug Operations and Harbour Towage: Tug pressed against the ship's side to hold it onto the berth.
Pinniped X10. Marine Biology, Fisheries and Oceanography: Fin-footed marine mammal (seals, sea lions, walrus).
Pinniped Haulout D3. Marine environmental science, pollution and conservation: Beach area where seals and sea lions rest, conservation focus.
PINS X168. Bridge Electronics: Radar, ECDIS, GMDSS, and IBS: Pilot Integrated Navigation System carried aboard by marine pilots for berthing operations.
Pinsent Masons X114. Maritime Arbitration and Shipping Law Firms: International firm with shipping and offshore practice in London, Aberdeen, Singapore, and Sydney.
Pinta X39. Pre-1900 Maritime History: One of the three vessels of Columbus's 1492 expedition, captained by Martín Alonso Pinzón.
Pinta, Santa Maria, Nina Replicas F4. Recreational Boating, Yachting and Sport: Recreational vessels of Columbus' fleet.
Pintle X3. Ship Handling, Seamanship and Deck Vocabulary: Pin on the rudder fitting into a gudgeon.
Pintle (rudder) X38. Propellers, Stern Gear and Shaft Lines: Lower hinge pin of a rudder, relevant where rudder horn arrangements interact with the propeller race.
Pintle nozzle X61. Marine Lubricants and Cylinder Oils: Older injector design that has shaped marine cylinder lubrication research on spray distribution.
Piombino X85. Ferries, Ro-Pax Operators and Routes: Italian Tuscan port hosting Moby Lines and Toremar services to Elba, Corsica, and Sardinia.
Pioneer X85. Ferries, Ro-Pax Operators and Routes: P&O Ferries hybrid ro-pax of the Fusion class built at Guangzhou Shipyard delivered for Dover to Calais.
Pioneer (Methanol Tanker) X111. Methanol, Ammonia and Alternative Marine Fuels: 11,000 dwt methanol-fueled tanker built for Mitsui Chemicals in 2019.
Pioneer Bay Pipeline X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Subsea fuel pipeline at a coastal terminal in Western Australia.
Pioneer Container, The (KH Enterprise v Pioneer Container) [1994] 2 AC 324 X143. Landmark Maritime Law Cases and Doctrines: Privy Council held that a sub-bailee's exclusive jurisdiction clause bound the head bailor.
Pioneer Yard X113. Drydock and Ship Repair Yards: Reference to former Keppel Shipyard Pioneer site at Tuas, integrated into Seatrium operations.
Pioneering Spirit X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Allseas dual-hull heavy-lift and pipelay vessel of 382 m length, capable of S-lay and J-lay.
Pipe X3. Ship Handling, Seamanship and Deck Vocabulary: Boatswain's whistle call.
Pipe Cargo X1. Cargo Science, Commodities and Cargo Care: Line pipe carried on flat racks or breakbulk in pyramids with chocks.
Pipe coating X45. Marine Paints, Coatings and Antifouling: Coating system for underwater and topside pipework, often using high-build epoxies.
Pipe Connection Supervision X86. Port Agency, Husbandry and Disbursement: Agency supervision of bunker or cargo pipe connections.
Pipe Lay Vessel X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Specialized vessel that fabricates and installs subsea pipelines using S-lay, J-lay, or reel-lay methods.
Pipe Layer (S-lay, J-lay, Reel-lay) B5. Ship Types and Individual Vessels: Pipe laying vessel classes.
Pipe Renewal Survey X5. Marine Surveying and Inspection: Inspection following renewal of damaged or wasted piping.
Pipe spool X58. Shipbuilding Yards and Construction: Prefabricated pipe assembly with flanges and fittings, installed during outfitting.
Pipe spool fabrication X58. Shipbuilding Yards and Construction: Workshop production of pipe spools to drawings before installation aboard.
Pipe stripping X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Final draining of bunker hose into ship tank at end of transfer.
Pipe-Lay Vessel (PLV) E4. Cruise, offshore energy and auxiliary/specialised fleets: Vessel installing offshore pipelines.
Pipelay Vessel X14. Offshore Oil and Gas Marine Operations: Specialist S-lay, J-lay or reel-lay construction vessel.
Pipelay Vessel Salvage Support X60. Marine Salvage and Wreck Removal: Use of pipelay tonnage in support of salvage and decommissioning when no dedicated SSCV is available.
Pipeline X75. IMDG Code, Classes, Packing and Segregation: Mode for petroleum and gas not covered by IMDG; receipt at ports under terminal regulations.
Pipeline crossing X124. Dredging Industry and Reclamation Contractors: Trench dredging across cables and pipelines, requiring backfill or concrete mattress.
Pipeline End Manifold (PLEM) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Subsea structure connecting flowlines to a manifold for distribution among wells or platforms.
Pipeline End Termination (PLET) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Structure at a pipeline end providing a flanged connection for tie-in spools and jumpers.
Pipeline Free Span Rectification X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Use of rock dumping, grout bags, or mechanical supports to remediate free spans on submarine pipelines.
Pipeline Hot Tap X167. Major Salvage Companies, Wreck Removals, and Equipment: Application of hot tap method to a damaged subsea pipeline associated with a wreck.
Pipeline Inspection Gauge (PIG) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Tool inserted into a pipeline for cleaning, inspection, or batching, driven by product flow or by a pig launcher pressure.
Pipeline manifold X15. Ports, Terminals and Stevedoring: shore-side connection to tank farms.
Pipeline Pre-Lay Survey X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Geophysical survey along the proposed pipeline route to confirm seabed conditions and any new hazards.
Pipeline sendout X56. LNG/LPG Carriers and IGC Code: Regasified LNG discharged from a terminal into the high-pressure natural gas grid.
Pipeline Survey X43. Marine Surveying and Warranty Surveying: An attendance for laying, burying, or trenching subsea pipelines, frequently a marine warranty function.
Pipeline Walking X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Axial movement of a hot, high-pressure pipeline due to cyclic shutdown and start-up, mitigated by anchors or curve introduction.
Piper Alpha X14. Offshore Oil and Gas Marine Operations: Occidental UK platform lost 1988; 167 fatalities; led to Cullen Inquiry.
Pipework Pre-Cool X20. LNG Operations and Custody Transfer: Spraying of liquid header before loading to avoid thermal shock on manifold piping.
PIPSE X126. Marine Oil Spill Response and OPRC Regimes: Petroleum Industry Pollution Spill Equipment list.
Piracy A6. Public international law of the sea: Defined in UNCLOS Article 101.
Piracy (UNCLOS Art 101) E1. Maritime security, geopolitics and risk: Illegal acts of violence/detention for private ends on high seas.
Piracy Captivity Amendment X154. Maritime Welfare, Seafarer Charities, and MLC Rights: MLC 2018 amendment ensuring SEA continues and wages are paid while seafarer is held by pirates or armed robbers.
Piracy Clause 2013 (BIMCO) X51. Maritime Arbitration, Law and BIMCO Clauses: The BIMCO clause for transits of piracy risk areas allocating cost and risk between owner and charterer.
Piracy Folklore F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Black-flag legends including Blackbeard and Anne Bonny.
Piracy Ransom Welfare X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Coordinated welfare response to released hostages, often funded by ITF Seafarers' Trust grants.
Piracy Reporting Centre X22. Piracy, Maritime Security and Armed Protection: IMB facility in Kuala Lumpur operating since October 1992.
Piraeus X24. Cruise, Passenger Ship and Ferry Operations: Greek port serving Athens, major eastern Mediterranean cruise hub.
Piraeus Bar Association X114. Maritime Arbitration and Shipping Law Firms: Greek bar with extensive shipping practitioner membership.
Piraeus Bunker Service X72. Bunkering Hubs and Bunker Suppliers: Bunker supply at the Port of Piraeus by Aegean Oil, Coral Marine, Eko, and Mamidoil Jetoil.
Piraeus Maritime Cluster F3. Seafaring Life, Education, Professions and Institutions: Greek shipping hub.
Piraeus University of Maritime Studies X121. Maritime Education, Academies and Universities: Department of Maritime Studies at the University of Piraeus, Greece, founded 1989, BSc Maritime Studies.
Pirate Action Group X22. Piracy, Maritime Security and Armed Protection: Term used by combined naval forces for an organized group of skiffs and mothership.
Pirate Action Group (PAG) E1. Maritime security, geopolitics and risk: Tactical Somali piracy unit (skiff and mothership).
Pirate Round F1. Maritime History: Late seventeenth century circuit by American pirates to the Indian Ocean.
Pirate Skiff E1. Maritime security, geopolitics and risk: Small fast craft used in approach phase.
PIRR position list X71. Shipbrokers and Brokerage Firms: Generic broker term for position, itinerary, reasonableness, and rate distribution.
Pisa, Republic of X39. Pre-1900 Maritime History: Medieval Italian maritime republic that controlled trade in the western Mediterranean until defeated at Meloria in 1284.
PISCES II X126. Marine Oil Spill Response and OPRC Regimes: Computer-based spill response simulator developed by Transas (Wartsila).
Piston (CPP hub) X38. Propellers, Stern Gear and Shaft Lines: Hydraulic piston inside the CPP hub translating servo oil pressure into axial motion driving the blade crosshead.
Piston cooling jet B2. Marine Engineering: Oil jet cooling underside of piston crown.
Piston cooling oil X19. Engine Room Watchkeeping and UMS Operations: System oil routed up the piston rod to internal cooling spaces in MAN B&W and Wartsila engines.
Piston cooling water X19. Engine Room Watchkeeping and UMS Operations: Older arrangement on engines such as Sulzer RND using fresh water for piston cooling.
Piston Crown X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Combustion-side piston component manufactured from forged steel or Nimonic, examined for burn-through and crack initiation at piston pulls.
Piston Pull X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Removal of the complete piston, rod, and crosshead assembly through the cylinder head opening, performed every 16,000 hours on MAN B&W two-strokes.
Piston Pump X63. Marine Auxiliary Machinery and Pumps: Positive displacement pump with reciprocating piston in a cylinder, used in some specialty cargo and high-pressure duties.
Piston ring X61. Marine Lubricants and Cylinder Oils: Sealing ring fitted in a piston groove that relies on cylinder oil for friction and wear control.
Piston Ring Renewal X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Replacement of all compression and oil control rings at piston overhaul, with groove clearance measurement and CPR ring orientation.
Piston rings X19. Engine Room Watchkeeping and UMS Operations: Compression and oil control rings sealing combustion gases against the liner.
Piston rod gland X19. Engine Room Watchkeeping and UMS Operations: Stuffing box at bedplate top sealing piston rod between scavenge and crankcase space.
Pitch X3. Ship Handling, Seamanship and Deck Vocabulary: Vertical motion of bow and stern; tar.
Pitch (motion) B1. Naval Architecture: Rotational motion about the transverse axis.
Pitch (P) X38. Propellers, Stern Gear and Shaft Lines: Axial distance advanced per revolution if the blade screwed through a solid; measured at 0.7R for nominal value.
Pitch (propeller) B1. Naval Architecture: Axial advance per revolution at a section.
Pitch angle X38. Propellers, Stern Gear and Shaft Lines: Angle the helical pitch surface makes with the propeller plane at a given radius.
Pitch distribution X38. Propellers, Stern Gear and Shaft Lines: Variation of pitch with radius across the blade, often non-uniform for performance optimization.
Pitch Limit X31. Helicopter Operations on Ships: Maximum permissible vessel pitch angle, typically 3 degrees for unrestricted operations.
Pitch pole X3. Ship Handling, Seamanship and Deck Vocabulary: Capsize end-over-end.
Pitch ratio (P/D) X38. Propellers, Stern Gear and Shaft Lines: Pitch divided by diameter, a primary geometric parameter in propeller series.
Pitch system X42. Offshore Wind Installation and Cable Lay: Electromechanical or hydraulic system rotating turbine blades around their longitudinal axis to control aerodynamic loads.
Pitch-diameter ratio (P/D) B1. Naval Architecture: Propeller geometric parameter.
Pitman F4. Recreational Boating, Yachting and Sport: Crew role in the mid-cockpit of a racing yacht.
Pitometer Log X89. ECDIS and Bridge Equipment Makers: Traditional pressure based speed log using a tube projecting from the hull.
Pitot tube X19. Engine Room Watchkeeping and UMS Operations: Differential pressure device for flow measurement on cargo lines.
Pitting Corrosion X5. Marine Surveying and Inspection: Localized pit type corrosion; mapped and gauged during ESP.
Pittsburgh X103. US Inland Waterway Towing and Barge: The Pennsylvania city at the head of the Ohio River.
Pittsburgh District X103. US Inland Waterway Towing and Barge: The US Army Corps of Engineers district responsible for the upper Ohio, Allegheny and Monongahela.
Pivot point B1. Naval Architecture: Apparent center of rotation during a turn.
PIW X80. Maritime Search and Rescue Coordination: Person In Water, a generic SAR search object.
Pixel Level Annotation X109. Maritime Autonomous Surface Ships and MASS Code: Detailed labeling of marine imagery for training and evaluating perception models for MASS.
PKBWM (Panstwowa Komisja Badania Wypadkow Morskich) X163. Marine Accident Investigation Agencies and Landmark Inquiries: Polish State Commission on Maritime Accident Investigation established under the Maritime Accident Investigation Act of 31 August 2012 with offices in Szczecin.
PKI X48. Maritime Cybersecurity: Public Key Infrastructure of certificate authorities, registration authorities, and relying parties supporting digital identity.
PKI (Public Key Infrastructure) E3. Technology, digitalization and smart shipping: Cryptographic trust framework for eBL/SSAS.
PLA X6. Container, Intermodal and Trade Codes: Port of Loading Acknowledgement.
Placard X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: An enlarged hazard label of at least 250 mm x 250 mm displayed on each of the four sides of a CTU under Chapter 5.3.
Place of Arbitration X51. Maritime Arbitration, Law and BIMCO Clauses: The juridical seat of the reference, distinct from the venue of hearings.
Place of Refuge X13. Marine Salvage and Wreck Removal: Sheltered area allowing a casualty to stabilise, framed by IMO Resolution A.949(23).
Place of refuge (polar) X27. Polar Code, Ice Navigation and Polar Operations: Limited places of refuge in polar waters drive voyage planning under Polar Code.
Place of Safety X60. Marine Salvage and Wreck Removal: Term used in Article 1 of the Salvage Convention 1989 for the destination at which a casualty is delivered.
Placement X4. Marine Insurance, P&I and Claims: the act of broking a risk to underwriters.
Placing Broker X4. Marine Insurance, P&I and Claims: broker who arranges the original placement of the risk.
PLAEM X73. Marine Hydrography, Charting and ENC: Polar Low-Altitude Echo Mapping, an emerging survey method noted in IHO bulletins.
Plaice X10. Marine Biology, Fisheries and Oceanography: *Pleuronectes platessa*, a North Atlantic flatfish.
Plain suction dredger X175. Port Engineering, Dredging, Breakwaters, and Quays: Stationary suction dredger without a cutter head, used in loose granular soils where the suction alone is enough to mobilize the bed.
Plaintiff X114. Maritime Arbitration and Shipping Law Firms: Term for claimant in United States admiralty proceedings.
PLAN X11. Naval Vessels, Warship Systems and Naval Architecture: People's Liberation Army Navy.
Plan Approval X142. Classification Societies and Class Notations: Class office review and stamping of construction drawings prior to fabrication.
Plancius X97. Polar Expedition Cruise and IAATO Operations: Oceanwide Expeditions ice-strengthened ship with 116 PAX, originally a Royal Netherlands Navy oceanographic vessel.
Plane X132. High-Speed Craft, Hydrofoils and Ferry Operators: Operating regime where dynamic lift supports the majority of vessel weight.
Plane sailing X16. Nautical Science, Navigation and COLREGs: Approximate method assuming a flat Earth over short distances.
Planetary Boundary Layer D1. Physical and chemical oceanography and marine meteorology: Atmospheric layer directly affected by Earth's surface.
Planing B1. Naval Architecture: Hydrodynamic lift regime above hump speed.
Plankton X10. Marine Biology, Fisheries and Oceanography: Drifting aquatic organisms unable to swim against currents.
Planned maintenance X59. Offshore Wind O&M, CTVs and SOVs: See scheduled maintenance.
Planned maintenance system X19. Engine Room Watchkeeping and UMS Operations: PMS, software issuing job cards by hours, calendar, or condition.
Planning stage X16. Nautical Science, Navigation and COLREGs: Second stage of passage planning per A.893(21).
Plant Audit X40. Tanker Vetting, SIRE and VIQ: An operator-organized engine-room audit referenced under TMSA Element 4.
Plant Health Certificate X1. Cargo Science, Commodities and Cargo Care: Phytosanitary document accompanying agricultural cargoes.
Plant Layout Drawing X104. Project Cargo Forwarders and Heavy Transport: Site drawing used to plan delivery, lay down, and lift positions for project units.
Plaquemines LNG X56. LNG/LPG Carriers and IGC Code: Venture Global LNG export terminal in Plaquemines Parish, Louisiana, with first cargoes shipped in 2024.
Plasma X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Cortland-trademarked HMPE rope with proprietary surface treatment for improved abrasion resistance.
Plasma Cutting X28. Ship Recycling and End-of-Life: High-temperature plasma arc method used selectively in cleaner cutting zones.
Plaster of Paris bandage X36. Shipboard Medical, Telemedicine and Seafarer Health: Splinting material on Category A ships.
Plastic (Category A Annex V) X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: Garbage category for synthetic ropes, fishing nets, plastic bags, and all other forms of plastic; discharge of plastics from ships is prohibited everywhere under Reg 3.
Plastic Drum X75. IMDG Code, Classes, Packing and Segregation: Packaging code 1H1 single walled with non removable head or 1H2 with removable head.
Plastic IBC X75. IMDG Code, Classes, Packing and Segregation: Rigid plastic IBC code 31H1 with structural equipment in contact with substance or 31H2 freestanding.
Plastic Jerrican X75. IMDG Code, Classes, Packing and Segregation: Codes 3H1 non removable head and 3H2 removable head.
Plastic Packaging Waste X120. Marine Catering, Provisions and Ship Chandlers: MARPOL Annex V Regulation 3 prohibition on discharge, affects chandler packaging choices.
Plastic Receptacle in Steel Drum X75. IMDG Code, Classes, Packing and Segregation: Composite packaging code 6HA1 or 6HA2 with rigid or flexible plastic inner.
Plastimo HRU X95. GMDSS Equipment and Survival Craft Communications: Hydrostatic release unit manufactured by Plastimo of France for liferaft and EPIRB deployment at approximately four meters depth.
Plastisphere D3. Marine environmental science, pollution and conservation: Microbial communities colonizing plastic debris.
Plate Anchor X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Anchor type used in subsea pipeline anchoring systems and CALM buoy moorings.
Plate Boundary D2. Hydrography, tides, waves, bathymetry and marine geology: Edge between tectonic plates, divergent, convergent, or transform.
Plate Buckling X54. Naval Architecture Software and IACS Rules: Local instability mode evaluated in PULS, MAESTRO ALPS, and Ansys eigenvalue analyses.
Plate cooler X19. Engine Room Watchkeeping and UMS Operations: Plate heat exchanger common for central cooling and lube oil service.
Plate edge preparation B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Bevel preparation for welding.
Plate Evaporator X63. Marine Auxiliary Machinery and Pumps: Fresh water generator using titanium plate heat exchangers as evaporator and condenser.
Plate field B1. Naval Architecture: Stiffened-panel zone of the structural model.
Plate forming press X58. Shipbuilding Yards and Construction: Hydraulic press cold-forming hull plates to curvature.
Plate freezer X19. Engine Room Watchkeeping and UMS Operations: Refrigeration installation on fishing vessels for product freezing.
Plate Heat Exchanger X63. Marine Auxiliary Machinery and Pumps: Heat exchanger using stacked plates with gaskets for compact heat transfer.
Plate nesting X58. Shipbuilding Yards and Construction: Algorithmic packing of cut parts onto stock plates to minimize waste.
Plate Recovery Yield X28. Ship Recycling and End-of-Life: Percentage of hull plate recovered as re-rollable steel.
Plate seam B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Longitudinal plate joint.