{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.tender-locomotive","code":"thing-q20650761","url":"https://ver.cy/models/thing/q20650761/","name":"tender locomotive","alternateNames":["État-Belge type 12","WAGR L class","VR Class Sk1","L&YR Class 28","Henschel 26167–26169","Gotthardbahn D 4/4","South African Class NG8 4-6-0","South African Class NG7 2-6-0","CLB I","Chicago Burlington and Quincy O-5 class","CP 181 to 186","CFE 101 to 119"],"kind":"thing","status":"published","version":"0.2.0-wave.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":"A steam locomotive that hauls a separate vehicle, the tender, carrying its fuel and water, as opposed to a tank locomotive that carries them on its own frame; many historical classes worldwide.","purpose":"Let an agent handle tender locomotives by class, railway, wheel arrangement, preservation and history.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Separate fuel and water tender","Longer range than tank engines","Many national classes","Largely heritage today"],"structure":{"bundles":[{"id":"identity","name":"Identity","description":"Which locomotive.","layers":[{"id":"class","name":"Class","description":"Railway class.","findings":[{"id":"class-finding","name":"Class","description":"Class.","questions":[{"text":"Which class and railway is it?","kind":"provenance"},{"text":"What is its wheel arrangement?","kind":"definition"}]}]},{"id":"builder","name":"Builder","description":"Manufacturer.","findings":[{"id":"builder-finding","name":"Builder","description":"Builder.","questions":[{"text":"Who built it and when?","kind":"provenance"},{"text":"How many were built?","kind":"measurement"}]}]}]},{"id":"technical","name":"Technical","description":"Design.","layers":[{"id":"specs","name":"Specifications","description":"Performance.","findings":[{"id":"specs-finding","name":"Specifications","description":"Specifications.","questions":[{"text":"What were its tractive effort and tender capacity?","kind":"measurement"},{"text":"From which reference?","kind":"provenance"}]}]},{"id":"role","name":"Role","description":"Service.","findings":[{"id":"role-finding","name":"Role","description":"Service role.","questions":[{"text":"Was it used for passenger or freight service?","kind":"provenance"},{"text":"On which routes?","kind":"provenance"}]}]}]},{"id":"heritage","name":"Heritage","description":"Preservation.","layers":[{"id":"preserved","name":"Preserved","description":"Examples.","findings":[{"id":"preserved-finding","name":"Preserved","description":"Preserved examples.","questions":[{"text":"Where are preserved examples, and are any operational?","kind":"provenance"},{"text":"When do they run?","kind":"provenance"}]}]},{"id":"safety","name":"Safety","description":"Boilers and fires.","findings":[{"id":"safety-finding","name":"Safety","description":"Operational safety.","questions":[{"text":"Is the boiler certificate current?","kind":"provenance"},{"text":"How is lineside fire risk managed?","kind":"boundary"}]}]}]},{"id":"history","name":"History","description":"Railway history.","layers":[{"id":"service","name":"Service","description":"Career.","findings":[{"id":"service-finding","name":"Service","description":"Service history.","questions":[{"text":"What is its documented service history?","kind":"provenance"},{"text":"When was it withdrawn?","kind":"provenance"}]}]},{"id":"models","name":"Models","description":"Scale models.","findings":[{"id":"models-finding","name":"Models","description":"Scale models.","questions":[{"text":"Which scale models exist?","kind":"definition"},{"text":"Which references help accuracy?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Describe tender locomotive classes and history from railway archives.","Report the condition of a preserved locomotive to its operator."],"mustNot":["Operate, fire or move a steam locomotive without being authorized and qualified.","Tamper with a locomotive's boiler, brakes or safety valves.","Allow people near a live steam locomotive without the operator's supervision.","Remove parts or fittings from a preserved locomotive."],"requiresHuman":["Steaming, moving or coupling a locomotive.","Disposing of or altering a historic locomotive."]},"ethics":{"considerations":["A steam boiler stores great energy and can kill if mishandled.","Preserved locomotives are heritage held for the public."],"affectedParties":["Crew and volunteers","Visitors and passengers","Railway heritage"]},"owners":{"steward":"The railway or heritage operator that keeps it; railway safety regulators oversee its operation.","roles":[],"masterSystems":["National railway rolling stock and heritage vehicle registers"]},"relations":[{"target":"Q171043","type":"parent","note":"registry parent class"},{"target":"steam locomotive","type":"related","note":"category"},{"target":"tank locomotive","type":"related","note":"type"},{"target":"railway line","type":"related","note":"infrastructure"},{"target":"heritage railways","type":"related","note":"organisations"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.tender-locomotive","Wikidata: Q20650761 (https://www.wikidata.org/wiki/Q20650761)","class and running number: railway-specific locomotives","Whyte notation: wheel arrangement classification"]},"properties":{"applicability":"required","items":["Operating mass:  t - Mass is measured or taken from technical records with tender inclusion and fuel and water loading explicitly stated.","Overall length:  m - Length is measured between specified end reference points with the locomotive and tender coupled.","Track gauge:  mm - Compatible track gauge is specified as the distance between the inner rail faces at the prescribed measurement level.","Boiler working pressure:  MPa - Working pressure is obtained from boiler documentation with gauge or absolute pressure explicitly identified.","Tender water capacity:  m3 - Water capacity is obtained from tender specifications or measured volume with usable and total capacity distinguished."]},"recognition":{"applicability":"required","items":["Separate tender behind the cab","Whyte notation such as 4-6-2","Tank locomotives carry fuel on board","A steam engine coupled to a separate tender carrying coal or oil and water."]},"capabilities":{"applicability":"required","items":["identify classes and wheel arrangements","find preserved examples","research railway history","ride heritage trains"]},"hazards":{"applicability":"required","items":["Boiler failures","Lineside fires from sparks","Burns and scalds in operation"]},"interfaces":{"applicability":"required","items":["Heritage railway safety rules","Boiler inspection regulations"]},"context":{"applicability":"required","items":["Long-distance steam haulage; today heritage operation.","express passenger tender locomotives","freight tender locomotives","articulated tender locomotives","preserved heritage locomotives"]}},"sources":[{"title":"Wikidata item Q20650761: tender locomotive","url":"https://www.wikidata.org/wiki/Q20650761","note":"identity and sense of the item"},{"title":"Wikipedia (sv): Tenderlok","url":"https://sv.wikipedia.org/wiki/Tenderlok","note":"general description of the item"}],"openQuestions":["Should classes be separate entries?","How should preserved examples be linked?","How should wheel notations be recorded?"],"resources":{"spec":"/models/things/publications/thing-q20650761/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q20650761/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T09:06:37Z","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 2026-10-08T19:09:51+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}