{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.ok-dinghy","code":"thing-q1896106","url":"https://ver.cy/models/thing/q1896106/","name":"OK Dinghy","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"The OK Dinghy is an international one-design class of single-handed sailing dinghy, designed by Knud Olsen in 1957, with an unstayed mast and a single mainsail.","purpose":"Enable an AI agent to recognise an OK Dinghy, assess its sailing readiness and class conformity, and identify appropriate setup, inspection and repair actions.","scope":{"in":["OK Dinghy identity and evidence linking a hull to the class","Hull geometry, construction, mass and buoyancy arrangements","Mast, sail, boom and sail-shape controls","Centreboard, rudder and hiking arrangements","Readiness, deterioration, repairs and equipment conformity"],"out":["The OK Dinghy International Association as an organisation","Individual boat ownership, sales and insurance records","Regattas, race results and racing tactics","Sailor competence, fitness and personal protective equipment specifications","Weather, waterway restrictions and rescue-service operations","Other dinghy classes and generic sailboat design theory"],"boundaries":[]},"distinguishingFeatures":["Look for the combination of singlehanded operation, hard-chine hull and approximately 4 m length; these are recognition clues, not sufficient proof of class conformity. [OKDIA introduction](https://okdia.org/introduction-to-the-ok-dinghy/)","Check hull geometry against OK-specific measurement evidence rather than identifying the boat solely by its sail emblem or resemblance to another singlehander.","Allow wood, GRP and composite construction when recognising the class; neither one material nor one builder defines it. [OKDIA introduction](https://okdia.org/introduction-to-the-ok-dinghy/)","Distinguish an OK hull's identity from the eligibility of its installed equipment: an equipment substitution can require a fresh conformity assessment without creating a different boat kind."],"structure":{"bundles":[{"id":"ok-identity-and-rule-basis","name":"OK identity and rule basis","description":"Establish which physical boat is being assessed and which OK requirements govern the assessment.","layers":[{"id":"hull-identity","name":"Hull identity","description":"Connect physical identifiers with documentary evidence.","findings":[{"id":"identifier-and-record-continuity","name":"Identifier and record continuity","description":"Record how hull markings, sail identification and measurement documents relate, including discrepancies.","questions":[{"text":"Which physical hull identifier links this boat to its OK measurement record?","id":"identifier-and-record-continuity-q01","kind":"provenance"},{"text":"Do the displayed sail identification and certificate belong to this hull, or is equipment borrowed?","id":"identifier-and-record-continuity-q02","kind":"boundary"}]}]},{"id":"applicable-class-authority","name":"Applicable class authority","description":"Identify controlling rules, plans and interpretations.","findings":[{"id":"versioned-conformity-basis","name":"Versioned conformity basis","description":"Record dated requirements and their precedence; OKDIA cautions that current rules can supersede older plans and that official templates take precedence over reproduced drawings. [OKDIA boat reference](https://okdia.org/the-boat/)","questions":[{"text":"Which rule edition and official interpretations apply to this boat and assessment date?","id":"versioned-conformity-basis-q01","kind":"provenance"},{"text":"Which questions require an official measurer or certification authority rather than an agent's dimensional comparison?","id":"versioned-conformity-basis-q02","kind":"action"}]}]}]},{"id":"hull-form-and-construction","name":"Hull form and construction","description":"Represent the OK hull's shape, material construction and measured mass.","layers":[{"id":"geometry-and-mass","name":"Geometry and mass","description":"Capture repeatable measurements under an explicit measurement convention.","findings":[{"id":"measured-hull-envelope","name":"Measured hull envelope","description":"Record hull dimensions and weighing configuration without treating rounded introductory specifications as legal tolerances.","questions":[{"text":"Which hull stations, datums and templates are required to check this OK hull's shape?","id":"measured-hull-envelope-q01","kind":"measurement"},{"text":"What is the measured hull mass, which items were included, and what corrector weights were fitted?","id":"measured-hull-envelope-q02","kind":"measurement"}]}]},{"id":"construction-and-load-paths","name":"Construction and load paths","description":"Locate material transitions and concentrated sailing loads.","findings":[{"id":"ok-hull-structural-condition","name":"OK hull structural condition","description":"Inspect the mast support, centreboard case, hiking attachment regions and rudder attachments using methods appropriate to the actual construction.","questions":[{"text":"What materials and previous repairs occur around the mast support and centreboard case?","id":"ok-hull-structural-condition-q01","kind":"provenance"},{"text":"What cracking, movement, softening or separation is present at these load-bearing regions?","id":"ok-hull-structural-condition-q02","kind":"measurement"}]}]}]},{"id":"rig-match-and-sail-controls","name":"Rig match and sail controls","description":"Describe the installed rig as an interacting mast, sail and control system.","layers":[{"id":"mast-sail-compatibility","name":"Mast and sail compatibility","description":"Connect component identity, mast response and sail shape.","findings":[{"id":"documented-rig-pairing","name":"Documented rig pairing","description":"Record mast material, bend evidence and sail identity before applying equipment-specific tuning guidance.","questions":[{"text":"Which mast and sail are installed, and what evidence supports their intended pairing?","id":"documented-rig-pairing-q01","kind":"provenance"},{"text":"Under what loading and support conditions were the mast bend measurements obtained?","id":"documented-rig-pairing-q02","kind":"measurement"}]}]},{"id":"trim-and-release","name":"Trim and release","description":"Assess control authority and practical access from the sailing position.","findings":[{"id":"usable-sail-control-range","name":"Usable sail-control range","description":"Map the installed mainsheet and sail-shape controls, including routing, travel, friction and release behaviour.","questions":[{"text":"How do the installed mainsheet, vang, outhaul and luff-tension arrangements change sail shape?","id":"usable-sail-control-range-q01","kind":"definition"},{"text":"Can the sailor operate and release each control from the normal seated and hiking positions?","id":"usable-sail-control-range-q02","kind":"action"}]}]}]},{"id":"foils-and-hiking-interface","name":"Foils and hiking interface","description":"Represent underwater control surfaces and the sailor's physical control of heel and steering.","layers":[{"id":"centreboard-and-rudder","name":"Centreboard and rudder","description":"Record foil identity, geometry, attachment and movement.","findings":[{"id":"foil-fit-and-deployment","name":"Foil fit and deployment","description":"Check centreboard and rudder installation for condition, useful travel and interference.","questions":[{"text":"Which centreboard and rudder are fitted, and what evidence supports their OK class conformity?","id":"foil-fit-and-deployment-q01","kind":"provenance"},{"text":"At which positions do binding, excessive play or contact with the hull occur?","id":"foil-fit-and-deployment-q02","kind":"measurement"}]}]},{"id":"hiking-and-steering-access","name":"Hiking and steering access","description":"Assess the interaction of hiking support, tiller movement and cockpit access.","findings":[{"id":"sailor-control-interface","name":"Sailor control interface","description":"Record hiking support condition and whether the fitted steering arrangement remains usable through position changes.","questions":[{"text":"Are hiking supports and their attachments sound and adjusted for the intended sailor?","id":"sailor-control-interface-q01","kind":"action"},{"text":"Where can the tiller extension, control lines or hiking arrangements obstruct a tack or recovery movement?","id":"sailor-control-interface-q02","kind":"boundary"}]}]}]},{"id":"buoyancy-readiness-and-repair","name":"Buoyancy, readiness and repair","description":"Assess flotation integrity, launch configuration and the consequences of maintenance.","layers":[{"id":"flotation-and-water-management","name":"Flotation and water management","description":"Identify buoyancy spaces, closures and routes for unwanted water entry.","findings":[{"id":"verified-buoyancy-configuration","name":"Verified buoyancy configuration","description":"Record compartment condition, hatch and drain closures, and installed cockpit drainage equipment.","questions":[{"text":"Which buoyancy spaces and closures exist on this hull, and when was their integrity last checked?","id":"verified-buoyancy-configuration-q01","kind":"provenance"},{"text":"What inspection or test method is appropriate for this construction, and what leakage did it reveal?","id":"verified-buoyancy-configuration-q02","kind":"measurement"},{"text":"Which closures and drainage fittings must be set or checked before launching this particular boat?","id":"verified-buoyancy-configuration-q03","kind":"action"}]}]},{"id":"repair-and-return-to-use","name":"Repair and return to use","description":"Connect observed deterioration and component changes to subsequent checks.","findings":[{"id":"repair-consequences","name":"Repair consequences","description":"Assess repairs at the chines, mast support, centreboard case and foil attachments for structural and measurement consequences.","questions":[{"text":"Does the proposed repair alter measured hull shape, mass, buoyancy or a class-controlled equipment property?","id":"repair-consequences-q01","kind":"boundary"},{"text":"What inspection, measurement or certification action is needed before returning the repaired boat to its intended use?","id":"repair-consequences-q02","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-confidence-notes","name":"Check these first","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these check these first hold for the sense of OK Dinghy this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-kinds","name":"Kinds and varieties","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these kinds and varieties hold for the sense of OK Dinghy this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of OK Dinghy this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]},{"id":"evidence-standards-and-regulation","name":"Standards and regulation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these standards and regulation hold for the sense of OK Dinghy this model covers, and on what evidence?","id":"evidence-standards-and-regulation-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these real-world use hold for the sense of OK Dinghy this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these typical measurements hold for the sense of OK Dinghy this model covers, and on what evidence?","id":"evidence-measurements-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of OK Dinghy this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-regional-variation","name":"Regional variation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these regional variation hold for the sense of OK Dinghy this model covers, and on what evidence?","id":"evidence-regional-variation-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of OK Dinghy this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Describe the class's design, rules and racing history.","Track a boat's sail number, measurement certificate and equipment for its owner.","Report weather and safety information to sailors who asked for it."],"mustNot":["Certify a boat as class-legal without a qualified measurer's check.","Encourage launching in conditions beyond a sailor's ability or without a buoyancy aid.","Interfere with race management or results."],"requiresHuman":["Any decision to start, postpone or abandon a race.","Rescue decisions for a capsized sailor."]},"ethics":{"considerations":["Fair one-design racing depends on honest measurement and equal rules."],"affectedParties":["Sailors","Race officials and rescue crews"]},"owners":{"steward":"The boat's owner; the class association keeps measurement and sail number records.","roles":[],"masterSystems":["Class association sail number and measurement records"]},"relations":[{"target":"Q13573011","type":"parent","note":"registry parent class"},{"target":"Q22683885","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.ok-dinghy","Wikidata: Q1896106 (https://www.wikidata.org/wiki/Q1896106)"]},"properties":{"applicability":"required","items":["Hull identity evidence: Hull identifier linked to measurement record, certificate and issuing authority","Hull geometry: mm; length, beam and class-defined measurement stations with datum and method","Hull construction: Wood, GRP, composite or unresolved construction","Measured hull mass: kg; weighing configuration, moisture condition and corrector contribution recorded","Mast and sail pairing: Installed mast linked to sail, bend measurements and setup notes","Sail-shape control travel: mm or marked settings; named control, endpoints and test conditions","Foil operating condition: Free-moving, binding, excessive play, damaged or untested","Buoyancy integrity: Verified by recorded method, leaking, damaged or untested","Class conformity assessment: Supported for named rules and configuration, unresolved, or identified nonconformity"]},"recognition":{"applicability":"required","items":["A small single-handed hard-chine dinghy has an unstayed mast.","A single mainsail is marked with the class emblem and sail number."]},"capabilities":{"applicability":"required","items":["Identify a candidate boat and request missing OK class identity evidence.","Compare measured hull and equipment properties with the applicable class requirements.","Record and reproduce mast, sail and foil settings for a particular sailor and sailing session.","Inspect buoyancy, steering and control systems before launching.","Assess whether a proposed repair or replacement needs specialist work or renewed measurement.","Flag unresolved defects or conformity questions before sailing or race entry."]},"hazards":{"applicability":"required","items":["Capsize and cold water immersion.","Head injuries from the boom during gybes."]},"interfaces":{"applicability":"required","items":["Racing Rules of Sailing, World Sailing."]},"context":{"applicability":"required","items":["The OK Dinghy is used for single-handed sailing and racing at club and international levels.","Its one-design class framework supports competition between boats that meet shared construction and measurement requirements.","It is encountered at sailing clubs, regattas and workshops where hull, rig and equipment condition are assessed."]}},"sources":[{"title":"Wikidata item Q1896106: OK Dinghy","url":"https://www.wikidata.org/wiki/Q1896106","note":"identity and sense of the item"},{"title":"Wikipedia: OK (dinghy)","url":"https://en.wikipedia.org/wiki/OK_%28dinghy%29","note":"general description of the item"}],"openQuestions":["What exact geometry tolerances, hull weighing configuration and corrector provisions apply under the current OK rules?","Which construction-date provisions govern older hulls, mast materials and replacement equipment?","What current restrictions apply to foil materials, sail construction, identification marks and control arrangements?","Which buoyancy test procedures and acceptance criteria apply to the different OK hull constructions?","Which repairs or equipment substitutions require renewed measurement or certificate action, and which authority decides?"],"resources":{"spec":"/models/things/publications/thing-q1896106/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1896106/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T11:43:49Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T12:16:30+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}