Yacht encyclopedia

• التناضح (هيكل GRP)

  في GRP البوليستر العبرة بعمق الرطوبة، لا بكلمة الفقاعات. درجات Schneider من 1 إلى 3، وما بقي من الإصلاح، لا عدد الصور.

• AIS transceiver

  AIS transceivers on sailing yachts: Class B send/receive role, antenna checks, survey limits, and clear separation from any FairHelm map product.

• Aluminium mast

  Aluminium masts on cruising yachts: corrosion and hardware checks, FairHelm survey flags, and limits on guessing spar life from paint.

• Antifouling

  Antifouling on sailing yachts: role, survey reading of paint history, and FairHelm caution on claiming remaining seasons from photos.

• Autopilot

  Yacht autopilots: tiller and below-deck types, survey checks, power draw, and FairHelm limits on trusting a dock demo alone.

• Backstay

  Backstay on sailing yachts: role in mast support, adjusters, survey checks, and FairHelm caution on guessing wire age from photos.

• Baltic ice risk

  Baltic ice risk for yacht owners: what ice can do to hulls and berths, FairHelm judgment on winter plans, and limits on guessing ice calendars.

• Barrier coat cycle

  The word barrier does not name one coat count. West System sheets and Gelshield 200 print different dry-film numbers, and this page does not collapse them.

• Battery bank

  Mixed chemistries under ABYC E-13, July 2022, are not one battery bank. Lithium beside a lead starter battery does not make those two a group on a boat.

• Bilge pump

  Bilge pumps on sailing yachts: electric and manual, float switches, and FairHelm survey checks without inventing flood rates.

• Bill of sale

  Bill of sale for yacht purchases: what the document does, FairHelm document checklist, and limits (not legal advice).

• Blistering

  Blistering on GRP yachts: how FairHelm reads gelcoat blisters, survey caution, and limits on equating every blister with catastrophic osmosis.

• Boat dehumidifier

  Boat dehumidifiers for winter layup: electric and desiccant options, survey clues, and FairHelm limits on treating a dry smell as proof of dry core.

• Bonding system

  Bonding systems on yachts: green-wire continuity between underwater metals, survey checks, and FairHelm caution on assuming anodes alone protect.

• Boom vang

  Boom vang on sailing yachts: what it controls, survey wear points, and FairHelm limits on guessing residual life from listing photos.

• Bow thruster

  Bow thrusters on cruising yachts: tunnel and pod types, survey focus, and FairHelm limits on treating thrusters as mandatory.

• Bronze seacock

  Bronze seacocks on yachts: why the alloy matters, seize and dezincification clues, and FairHelm survey checks below the waterline.

• Carbon mast

  Carbon masts on sailing yachts: weight and stiffness trade-offs, survey damage clues, and FairHelm caution on undocumented impacts.

• Cathodic protection

  Cathodic protection on yachts: sacrificial anodes versus active systems, survey reading, and FairHelm limits on claiming remaining life from photos.

• CE design category

  CE design categories for recreational craft: what A–D mean in practice, FairHelm reading, and limits versus claiming ocean capability from a letter alone.

• Chainplate (standing-rigging attachment)

  Chainplates on cruising sailboats: load path from shrouds into the hull, deck leaks, corrosion and survey checks for Nordic buyers.

• Chartplotter

  Chartplotters on sailing yachts: MFD role, chart currency, survey checks, and FairHelm limits on treating a bright screen as navigation proof.

• Club mooring

  Club moorings for yacht members: what membership berths mean, FairHelm buyer checks, and limits on assuming transfer to a new owner.

• Cockpit tent

  Cockpit tents on sailing yachts: weather and winter use, frame and canvas checks, survey limits, and FairHelm caution on valuing tired enclosures as new canvas.

• Cutless bearing

  Cutless bearings on shaft-drive yachts: wear signs, survey checks, and FairHelm limits on guessing remaining life afloat.

• Deck core

  Deck core on sandwich yacht decks: wet core signs, survey checks, and FairHelm limits on guessing repair cost from soft spots alone.

• Depth sounder

  Depth sounders on sailing yachts: transducer types, survey checks, offset errors, and FairHelm limits on trusting a single shallow reading.

• Diesel heater

  Diesel cabin heaters on cruising yachts: exhaust and fuel paths, survey checks, and FairHelm limits on claiming silent always-on comfort.

• Dinghy davits

  Dinghy davits on yachts: stern lifting gear, deck load survey points, and FairHelm limits on treating bolted arches as proof of sound laminate.

• Engine antifreeze

  Engine antifreeze on sailing yachts: closed and raw-water winter protection, survey questions, and FairHelm limits on guessing mix strength from a receipt photo.

• EPIRB (distress beacon)

  EPIRBs on yachts: 406 MHz distress beacons, registration and hydrostatic mounts, and FairHelm survey checks beyond a red plastic case in a photo.

• Epoxy barrier coat

  Epoxy barrier coats on GRP hulls: role after treatment, survey reading of claims, and FairHelm limits on guaranteeing dry laminate.

• Fibreglass laminate

  Fibreglass laminate on sailing yachts: layup role, survey reading of wet core and print-through, and FairHelm limits on guessing strength from photos.

• Forestay

  Forestay on sailing yachts: headsail support, furler load path, survey flags, and FairHelm limits on photo-only condition claims.

• Freeboard

  Freeboard on sailing yachts: definition, docking and motion trade-offs, and FairHelm survey reading without inventing "safe" heights.

• Frost protection

  Frost protection on yachts: systems that freeze, FairHelm winterisation checks, and limits on claiming one product covers every loop.

• Galvanic isolator

  Galvanic isolators on yachts: blocking DC shore-power paths, survey checks, and FairHelm limits on treating them as a cure-all for anode loss.

• Gelcoat (GRP yacht finish)

  Defined term — gelcoat on polyester GRP hulls: cosmetic layer, osmosis blisters, repair scope and survey language.

• Genoa

  Genoa headsails on sailing yachts: overlap vs jib, furling wear, survey checks, and FairHelm limits on photo-only cloth judgments.

• Genoa furler

  Genoa furlers on cruising yachts: forestay loads, survey checks, and FairHelm limits on treating furling as set-and-forget.

• Gooseneck

  Gooseneck fittings on sailing yachts: boom-to-mast hinge wear, survey play checks, and FairHelm limits on photo-only clearance claims.

• Guest berth

  Guest berths for visiting yachts: what you buy for a night, FairHelm practical checks, and limits on assuming length overall always fits.

• Guest harbour

  Guest harbours in Nordic cruising: what visitor facilities mean, FairHelm practical checks, and limits on assuming every quay takes guests.

• Harbour dues

  Harbour dues for yachts: what overnight fees usually cover, FairHelm buyer and cruiser checks, and limits on quoting fixed prices.

• Harness and tether

  Harness and tether for sailors: clipping on in rough water, survey of kit age, and FairHelm limits on treating unused gear in a locker as crew-ready.

• Haul-out survey

  Haul-out surveys for used yachts: what only shows out of water, FairHelm sequencing tips, and limits on skipping the hard look.

• Holding tank

  The IMO three-mile and twelve-mile figures are not the rule for an ordinary pleasure yacht. Not Annex IV. A holding tank follows a different text here.

• Hull-deck joint

  Hull-deck joints on production yachts: leak paths, survey checks, and FairHelm reading of rubbing strakes and fastener lines.

• Inverter-charger

  Inverter-chargers on yachts: AC from DC plus shore charging, survey checks, and FairHelm limits on sizing claims from brochure watts.

• Iron keel

  A bolt in a lead keel is cast in. On an iron keel it is drilled and tapped later. Fresh antifouling does not show which joint you are looking at here.

• Jackstay

  Jackstays on sailing yachts: deck safety webbing or wire for clipping on, survey checks, and FairHelm limits on treating frayed tape as offshore ready.

• Keel types on cruising sailboats

  Defined term — fin, long, bilge, and lifting keels: handling, grounding risk, and survey focus for buyers.

• Keelbolts

  Keelbolts on sailing yachts: survey access and corrosion clues, FairHelm judgment on torque claims, and limits on guessing life afloat.

• Lazy jacks

  Lazy jacks on sailing yachts: mainsail control when dropping, chafe risks, survey checks, and FairHelm limits on equating a stack pack with a new sail.

• Lead keel

  Lead keels on sailing yachts: ballast density, FairHelm survey checks for grounding damage, and limits on guessing bolt condition afloat.

• Life raft

  Life rafts on yachts: stowage, service dates, and FairHelm survey reading of containers, painters, and honest offshore readiness claims.

• LOA and LWL

  LOA versus LWL on sailing yachts: definitions, marina and performance uses, and FairHelm caution on mixing figures in ads.

• Mainsail

  Mainsails on sailing yachts: cut and reefing, survey wear points, and FairHelm limits on guessing remaining life from a flaked photo.

• Marine plywood

  Marine plywood on yachts: what the grade means, survey checks for delamination, and FairHelm limits on trusting labels alone.

• Mast step

  Mast step on sailing yachts: deck- vs keel-stepped loads, survey moisture risks, and FairHelm limits on guessing from cabin photos.

• Moisture meter (hull survey)

  Moisture meters on GRP yachts: what surveyors measure, how FairHelm reads maps, and limits of single spot readings.

• Packing gland

  Packing glands on shaft-drive yachts: packing rings and adjustment, FairHelm drip and heat checks, and how this differs from the full stuffing-box assembly story.

• PLB (personal beacon)

  PLBs for sailors: personal 406 MHz beacons, registration and carry practice, and FairHelm limits on treating a pocket beacon as a full vessel EPIRB.

• Portlight

  Portlights on sailing yachts: seals, frames, and FairHelm survey checks for leaks without inventing brand failure rates.

• Propeller shaft

  Propeller shafts on sailing yachts: shaft drive versus saildrive context, survey checks, and FairHelm limits on alignment claims from dock photos.

• Radar reflector

  Radar reflectors on sailing yachts: passive visibility, mount checks, survey limits, and FairHelm caution against treating a tube as a collision guarantee.

• Rope clutch

  Rope clutches on sailing yachts: holding lines under load, wear signs, survey checks, and FairHelm limits on assuming new clutches fix old rope.

• Rudder bearing

  Rudder bearings on sailing yachts: play, moisture paths, survey checks, and FairHelm limits versus claiming skeg boats never fail.

• Rudder stock

  A heavy helm does not give millimetres of play in a rudder stock. Crevice corrosion under the packing is a different finding from dockside wiggle here.

• Running rigging

  Running rigging on sailing yachts: sheets and halyards, wear signs, and FairHelm survey reading without inventing rope life years.

• Sacrificial anode

  Sacrificial anodes on sailing yachts: galvanic protection, survey checks, and FairHelm limits on guessing remaining life from photos.

• Sail cover

  Sail covers on sailing yachts: UV protection for the mainsail, fit checks, survey limits, and FairHelm caution on equating a new cover with a new sail.

• Saildrive (sailboat propulsion)

  Saildrive units on cruising sailboats: seal service intervals, corrosion, survey haul-out checks and Baltic ownership practice.

• Seacocks (through-hull valves)

  Seacocks and through-hull valves on cruising yachts: seizure risk, bonding, survey checks and Nordic winter haul-out practice.

• Shore power

  Shore power on yachts: AC inlet, isolation, and FairHelm survey checks for earthing faults and cable condition.

• Shrink-wrap

  Shrink-wrap for yacht winter storage: weather skin role, venting needs, survey limits, and FairHelm caution on equating wrap with full winterisation.

• Skeg (rudder protection)

  Skeg on sailing yachts: partial keel protecting the rudder, survey focus on bearings and grounding, and trade-offs versus spade rudders.

• Soft patch

  A high meter reading at a chainplate and flex underfoot are different findings. A heel on a soft patch does not produce a repair price. Not percent water.

• Solar on a yacht

  Solar on sailing yachts: panels, controllers, and FairHelm survey reading of mounts, shade, and honest amp-hour claims.

• Spinnaker

  Spinnakers on sailing yachts: symmetric and asymmetric use, packing checks, survey limits, and FairHelm caution on unused "included" sails.

• Spreader

  Six degrees of rise on a Seldén spreader is not thirty degrees of sweep. The same maker's B&R rig is a different angle, not a second name for six here.

• Stainless 316

  Stainless 316 on yachts: what the grade claims, crevice corrosion risk, and FairHelm caution on trusting magnet tests alone.

• Standing rigging (sailboat)

  Standing rigging on cruising sailboats: wire age, terminals, survey intervals and Nordic replacement cost context for buyers.

• Storm jib

  Storm jibs on sailing yachts: small heavy-weather headsails, deck fittings, and FairHelm limits on treating a furled genoa alone as a storm plan.

• Stuffing box (packing gland)

  A dry bilge and zero drips do not prove a stuffing box or a dripless seal is healthy. One drip rate on this page does not cover every brand of seal here.

• Swedish VAT yacht

  The word moms on an advert does not settle Swedish VAT on a yacht. Three months or one hundred hours is enough, and a broker stamp is not the proof here.

• Teak deck (yacht decking)

  Teak decks on cruising yachts: fastener corrosion, moisture under planks, survey scope and Nordic ownership cost for used-boat buyers.

• Thru-hull (hull fitting)

  Thru-hull fittings on yachts: what they are, how they relate to seacocks, and what FairHelm checks on used boats in Northern Europe.

• Trysail

  Trysails on sailing yachts: separate storm mainsails, track or lace-on setups, and FairHelm limits on treating deep mainsail reefs as a full trysail substitute.

• VAT-paid status (used yacht EU)

  VAT-paid status on used EU yachts: what the phrase means for buyers, paperwork risk, and Baltic brokerage practice — not tax advice.

• VHF DSC

  VHF DSC radios on sailing yachts: distress alerting, MMSI setup, survey checks, and FairHelm limits on treating a handset photo as proof of a working DSC path.

• Watermaker

  Watermakers on yachts: reverse-osmosis fresh water, power and maintenance survey points, and FairHelm limits on treating output claims as year-round fact.

• Winch

  Sheet and halyard winches on sailing yachts: self-tailers, service signs, survey checks, and FairHelm limits on brand-name buying logic.

• Wind generator

  Wind generators on yachts: charging in breeze, noise and mounting survey points, and FairHelm limits on claiming year-round amp-hours.

• Wind instrument

  Wind instruments on sailing yachts: masthead sensors, calibration, survey checks, and FairHelm limits on trusting stuck apparent-wind numbers.

• Windlass

  Six millimetres on sprocket 006 is not one chain. Two issues of the same Lewmar manual assign that sprocket to different chain standards. Not one standard.

• Winter storage afloat

  Winter storage afloat for yachts: ice and freeze risks, FairHelm ownership checks, and limits on treating a southern winter as Baltic reality.

• Winter storage ashore

  Winter storage ashore for yachts: cradle and yard checks, FairHelm ownership notes, and limits on assuming every yard blocks the same way.

• Winterisation

  Yacht winterisation in Northern Europe: systems drain and protect, survey questions, and FairHelm limits on assuming a yard sticker means full layup quality.

• Yacht insurance

  Yacht insurance for buyers and owners: what surveyors and insurers often ask, FairHelm document checks, and limits on advising cover levels.

FAQ

Is this a full 100-term glossary yet?

Yes. This hub lists 100 Dual-write DefinedTerm pages (target 100). Quality still rules: we do not pad with empty stubs.

Do these pages replace a survey?

No. They explain language and decision frames. A named surveyor still inspects the boat in front of you.

Which languages are Dual-write?

Encyclopedia term pages and this hub ship full Dual-write in English, German, and Russian.