{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.self-propelled-anti-aircraft-weapon","code":"thing-q1428849","url":"https://ver.cy/models/thing/q1428849/","name":"self-propelled anti-aircraft weapon","alternateNames":["Type 98 20 mm AA Half-Track Vehicle","2S38 Derivatsiya-PVO","SIDAM 25","Otomatic","Poprad (self-propelled anti-aircraft missile system)","Majid","Luftvärnskanonvagn L-62 Anti II","ZSU-37","ZSU-37-2 Yenisei","auto-canon De Dion-Bouton","M53/59 Praga","M247 Sergeant York"],"kind":"thing","status":"research-draft","version":"0.2.0-wave.4","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 mobile air defence system mounting anti-aircraft guns, missiles or both on a tracked, wheeled or half-track vehicle so that it can accompany ground forces, described here at a public reference level, with historical and modern examples the registry aliases name such as the Japanese Type 98 20 mm half-track of the Second World War, the Italian SIDAM 25 and the Otomatic prototype, the Russian 2S38 Derivatsiya-PVO, the Polish Poprad missile system and the Iranian Majid system; the model gives no operational, tactical or technical employment detail.","purpose":"Let an agent explain self-propelled anti-aircraft weapons at a general reference level, relay history, categories and arms control context from military history and public defence sources with attribution, describe the named systems only at encyclopaedic level, and distinguish them from towed anti-aircraft guns, fixed missile sites, man-portable systems and combat vehicles generally.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Mobility with ground forces","Guns, missiles or hybrids","Integrated sensors","Public reference level only"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What the category is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is a self-propelled anti-aircraft weapon, and how does it differ from towed guns, fixed sites and MANPADS?","kind":"definition"},{"text":"Is the question historical or encyclopaedic, rather than seeking operational or targeting detail, which is out of scope?","kind":"boundary"}]}]},{"id":"named","name":"Named systems","description":"Named systems.","findings":[{"id":"named-finding","name":"Named systems","description":"Named systems.","questions":[{"text":"What are the Type 98 half-track, 2S38, SIDAM 25, Otomatic, Poprad and Majid, at encyclopaedic level?","kind":"definition"},{"text":"Which entry fits the specific system?","kind":"action"}]}]}]},{"id":"history","name":"History","description":"History.","layers":[{"id":"ww2","name":"Second World War","description":"Second World War.","findings":[{"id":"ww2-finding","name":"Second World War","description":"Second World War.","questions":[{"text":"How did mobile anti-aircraft vehicles develop during the Second World War, as historians describe?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"cold","name":"Cold War","description":"Cold War and after.","findings":[{"id":"cold-finding","name":"Cold War","description":"Cold War.","questions":[{"text":"How did systems such as the Shilka and Gepard shape the category?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"policy","name":"Policy","description":"Arms control.","layers":[{"id":"exports","name":"Exports","description":"Export controls.","findings":[{"id":"exports-finding","name":"Exports","description":"Exports.","questions":[{"text":"How are such systems covered by export control regimes?","kind":"provenance"},{"text":"Which entry fits Wassenaar Arrangement?","kind":"action"}]}]},{"id":"law","name":"Law","description":"Humanitarian law.","findings":[{"id":"law-finding","name":"Law","description":"Law.","questions":[{"text":"How does international humanitarian law apply to air defence, in general terms?","kind":"provenance"},{"text":"Which entry fits international humanitarian law?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"Context.","layers":[{"id":"conflicts","name":"Conflicts","description":"Recent conflicts.","findings":[{"id":"conflicts-finding","name":"Conflicts","description":"Conflicts.","questions":[{"text":"How has reporting on recent conflicts discussed mobile air defence, with sources attributed and checked against current sources?","kind":"provenance"},{"text":"Is the presentation neutral?","kind":"boundary"}]}]},{"id":"museums","name":"Museums","description":"Museums.","findings":[{"id":"museums-finding","name":"Museums","description":"Museums.","questions":[{"text":"Where are historic anti-aircraft vehicles preserved?","kind":"provenance"},{"text":"Which entry fits military museum?","kind":"action"}]}]}]}]},"agentConduct":{"may":["explain the category at reference level","relay history with attribution","describe named systems encyclopaedically","distinguish related systems"],"mustNot":[],"requiresHuman":[]},"ethics":{"considerations":[],"affectedParties":[]},"owners":{"steward":"","roles":[],"masterSystems":[]},"relations":[{"target":"Q104387697","type":"parent","note":"registry parent class"},{"target":"Q4009273","type":"parent","note":"registry parent class"},{"target":"combat vehicle","type":"related","note":"in registry terms"},{"target":"anti-aircraft warfare","type":"related","note":"as a field of equipment"},{"target":"ZSU-23-4 Shilka","type":"related"},{"target":"man-portable air-defense system","type":"related"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.self-propelled-anti-aircraft-weapon","Wikidata: Q1428849 (https://www.wikidata.org/wiki/Q1428849)"]},"properties":{"applicability":"required","items":["early mass use: Second World War note","ZSU-23-4 Shilka introduced: 1960s note - widely known example","Gepard introduced: 1970s note - German example"]},"recognition":{"applicability":"required","items":["Vehicle-mounted air defence weapon","Type 98 20 mm AA half-track, 2S38 Derivatsiya-PVO, SIDAM 25, Otomatic, Poprad, Majid","Towed guns need a prime mover; fixed sites are static; MANPADS are carried by soldiers","An armoured or unarmoured vehicle carrying gun turrets or missile launchers, often with radar or sensors."]},"capabilities":{"applicability":"required","items":["explain the category at reference level","relay history with attribution","describe named systems encyclopaedically","distinguish related systems"]},"hazards":{"applicability":"required","items":["Operational or targeting detail requests, which are out of scope","Partisan framing of current conflicts","Registry aliases naming specific systems"]},"interfaces":{"applicability":"required","items":["Arms export controls such as the Wassenaar Arrangement","UN Register of Conventional Arms","International humanitarian law"]},"context":{"applicability":"required","items":["Mobile air defence for ground forces.","self-propelled anti-aircraft guns","self-propelled surface-to-air missile systems","gun-missile hybrids","historical half-track systems"]}},"sources":[],"openQuestions":["Should the named systems be separate primary entries?","How should public defence sources be linked?","The registry entry has merged aliases naming specific systems; should they be split off?","Which entry fits the specific system?","Which entry fits Wassenaar Arrangement?","Which entry fits international humanitarian law?"],"resources":{"spec":"/models/things/publications/thing-q1428849/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1428849/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T19:45:18Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"derived","ethics":"missing","owners":"missing","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"missing"},"notes":{"agentConduct":"Affordances listed as what may be done; prohibitions collected from the text.","sources":"Written from model knowledge without web access; claims are unverified."},"score":0.794}}