{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.r-790-whirlwind","code":"thing-q8038252","url":"https://ver.cy/models/thing/q8038252/","name":"R-790 Whirlwind","alternateNames":["R-790-3 Whirlwind"],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.FLW"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A nine-cylinder air-cooled radial aircraft engine of the Wright Whirlwind family, the Wright J-5, developed in the mid 1920s from earlier Lawrance and Wright designs with about seven hundred and ninety cubic inches displacement and around two hundred and twenty horsepower, noted for reliability and used in many aircraft of the era including the Spirit of St. Louis on its transatlantic flight of 1927, with the R-790-3 among its variants; the engine is a landmark of aviation history preserved in museums.","purpose":"Let an agent explain the Wright R-790 Whirlwind as a historical aircraft engine, describe its design, variants and famous applications from published sources, identify preserved examples, and support aviation history and restoration questions.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Nine cylinders","Reliability","Spirit of St. Louis","Landmark engine"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What the R-790 is.","layers":[{"id":"design","name":"Design","description":"Design and specifications.","findings":[{"id":"design-finding","name":"Design","description":"Design.","questions":[{"text":"What are the design and published specifications of the R-790, and how do its variants differ?","kind":"definition"},{"text":"Which variant is meant?","kind":"boundary"}]}]},{"id":"lineage","name":"Lineage","description":"Lineage.","findings":[{"id":"lineage-finding","name":"Lineage","description":"Lineage.","questions":[{"text":"How did the R-790 develop from the Lawrance J-1 and earlier Wright engines?","kind":"provenance"},{"text":"Which entry fits the Whirlwind family?","kind":"action"}]}]}]},{"id":"use","name":"Use","description":"Applications and fame.","layers":[{"id":"flights","name":"Flights","description":"Famous flights.","findings":[{"id":"flights-finding","name":"Flights","description":"Flights.","questions":[{"text":"Which record flights, including the Spirit of St. Louis, used the engine, and why was its reliability significant?","kind":"provenance"},{"text":"Which entry fits a specific flight?","kind":"action"}]}]},{"id":"aircraft","name":"Aircraft","description":"Aircraft applications.","findings":[{"id":"aircraft-finding","name":"Aircraft","description":"Aircraft.","questions":[{"text":"Which aircraft used the R-790, according to published sources?","kind":"provenance"},{"text":"Which findings are contested?","kind":"boundary"}]}]}]},{"id":"preserve","name":"Preserve","description":"Preservation.","layers":[{"id":"museums","name":"Museums","description":"Museum examples.","findings":[{"id":"museums-finding","name":"Museums","description":"Museums.","questions":[{"text":"Where are R-790 engines preserved or displayed?","kind":"provenance"},{"text":"Which entry fits aviation museums?","kind":"action"}]}]},{"id":"restoration","name":"Restoration","description":"Restoration.","findings":[{"id":"restoration-finding","name":"Restoration","description":"Restoration.","questions":[{"text":"What is involved in restoring and operating vintage radial engines within airworthiness rules?","kind":"provenance"},{"text":"Which entry fits vintage aircraft restoration?","kind":"action"}]}]}]},{"id":"learn","name":"Learn","description":"Context and teaching.","layers":[{"id":"context","name":"Context","description":"Historical context.","findings":[{"id":"context-finding","name":"Context","description":"Context.","questions":[{"text":"How did reliable radial engines like the R-790 transform aviation in the 1920s?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"teach","name":"Teach","description":"Teaching.","findings":[{"id":"teach-finding","name":"Teach","description":"Teaching.","questions":[{"text":"How can the R-790 be used to teach aviation history?","kind":"action"},{"text":"Which misconceptions arise?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Explain the Wright R-790 Whirlwind's design and famous applications from published sources.","Help restorers find archival documents and museum examples.","Distinguish the R-790 from other Whirlwind engines."],"mustNot":["Present historic data as approval to run or fly an engine.","Advise on overhaul for flight without a certified mechanic.","Confuse variants or misattribute record flights.","Help falsify engine records or provenance."],"requiresHuman":["Returning a restored engine to flight."]},"ethics":{"considerations":["Vintage aircraft carry people; airworthiness depends on certified work.","Famous engines attract forged provenance in the collector market."],"affectedParties":["Pilots and passengers","Restorers","Museums"]},"owners":{"steward":"The owner of each surviving engine; aviation authorities certify airworthiness.","roles":[],"masterSystems":["Aircraft registers"]},"relations":[{"target":"Q1461777","type":"parent","note":"registry parent class"},{"target":"Whirlwind","type":"related","note":"category"},{"target":"R-760 Whirlwind","type":"related","note":"the seven-cylinder relative"},{"target":"Lawrance J-1","type":"related","note":"the predecessor engine"},{"target":"aviation","type":"related","note":"the wider field"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.r-790-whirlwind","Wikidata: Q8038252 (https://www.wikidata.org/wiki/Q8038252)"]},"properties":{"applicability":"required","items":["Engine displacement: Approximately 790 cubic inches - Displacement is the combined swept volume of the nine cylinders.","Rated shaft power: Approximately 220 horsepower - Rated power depends on the engine variant and specified operating conditions."]},"recognition":{"applicability":"required","items":["Nine-cylinder Wright Whirlwind of about seven hundred and ninety cubic inches","Known as the J-5, with the R-790-3 variant","The R-760 is the seven-cylinder Whirlwind; the Lawrance J-1 is the predecessor","A nine-cylinder star-shaped radial engine."]},"capabilities":{"applicability":"required","items":["explain design and variants","describe applications","identify preserved examples","support history questions"]},"hazards":{"applicability":"required","items":["Confusing Whirlwind variants","Parts scarcity for restoration","Outdated technical data"]},"interfaces":{"applicability":"required","items":["Historical type certificates","Airworthiness rules for vintage aircraft","Museum conservation standards"]},"context":{"applicability":"required","items":["Interwar nine-cylinder radial aircraft engine.","J-5 base model","R-790-3 and other variants","engines in record flights","engines in transport and training aircraft","preserved and airworthy examples"]}},"sources":[{"title":"Wikidata item Q8038252: R-790 Whirlwind","url":"https://www.wikidata.org/wiki/Q8038252","note":"identity and sense of the item"},{"title":"Wikipedia: Wright R-790 Whirlwind","url":"https://en.wikipedia.org/wiki/Wright_R-790_Whirlwind","note":"general description of the item"}],"openQuestions":["Should the Whirlwind family be the primary entry?","How should museum collections be linked?","How should record flight histories be linked?"],"resources":{"spec":"/models/things/publications/thing-q8038252/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q8038252/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T06:07:39Z","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 2026-10-07T10:10:32+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}