{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.gamma-q3941040","code":"thing-q3941040","url":"https://ver.cy/models/thing/q3941040/","name":"Gamma","alternateNames":["Gamma 2D","YA-13","Gamma 2G","Gamma 2H","Gamma 2J","Gamma 2L","Gamma 5A","Gamma 5B","XA-16","Gamma 2A","Gamma 2B","Gamma 2E"],"kind":"thing","status":"published","version":"0.2.0-wave.17","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 Northrop Gamma is a family of single-engine all-metal monoplanes first flown in 1932 by the Northrop Corporation of the United States, used as mail and cargo transports and for record-setting and expedition flights, and a forerunner of later Northrop military designs.","purpose":"Let an agent identify the Northrop Gamma as an aircraft family, relay its design, variants and notable uses from aviation references, and keep it apart from the related Northrop Alpha, Delta and military derivatives.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Cargo and mail role, unlike the passenger-carrying Delta","Larger and later than the Alpha","Civil type, distinct from military attack aircraft derived from it","A family of variants, not a single airframe"],"structure":{"bundles":[{"id":"family-identity","name":"Family identity","description":"Which Northrop type this is.","layers":[{"id":"designation","name":"Designation","description":"Name and maker.","findings":[{"id":"designation-finding","name":"Designation","description":"Name and maker.","questions":[{"text":"Who built the Gamma and when did it first fly?","kind":"definition"},{"text":"How does it relate to the Alpha and Delta?","kind":"boundary"}]}]},{"id":"variants","name":"Variants","description":"Members of the family.","findings":[{"id":"variants-finding","name":"Variants","description":"Members of the family.","questions":[{"text":"Which Gamma variants were built and for whom?","kind":"provenance"},{"text":"Which variants were civil and which military?","kind":"boundary"}]}]}]},{"id":"design","name":"Design","description":"Construction and layout.","layers":[{"id":"structure","name":"Structure","description":"Stressed-skin construction.","findings":[{"id":"structure-finding","name":"Structure","description":"Stressed-skin construction.","questions":[{"text":"What construction method did the Gamma use, and why was it notable?","kind":"definition"},{"text":"Which reference describes it?","kind":"provenance"}]}]},{"id":"layout","name":"Layout","description":"Cockpit and cargo space.","findings":[{"id":"layout-finding","name":"Layout","description":"Cockpit and cargo space.","questions":[{"text":"How was the cargo or mail compartment arranged relative to the cockpit?","kind":"definition"},{"text":"Which engines were fitted to which variants?","kind":"provenance"}]}]}]},{"id":"use","name":"Use","description":"Service and notable flights.","layers":[{"id":"operators","name":"Operators","description":"Airlines and owners.","findings":[{"id":"operators-finding","name":"Operators","description":"Airlines and owners.","questions":[{"text":"Which airlines and private owners operated Gammas?","kind":"provenance"},{"text":"On which routes or tasks were they used?","kind":"provenance"}]}]},{"id":"notable-flights","name":"Notable flights","description":"Records and expeditions.","findings":[{"id":"notable-flights-finding","name":"Notable flights","description":"Records and expeditions.","questions":[{"text":"Which record or expedition flights used a Gamma, and with which crews?","kind":"provenance"},{"text":"Which airframe flew each notable flight?","kind":"boundary"}]}]}]},{"id":"legacy","name":"Legacy","description":"Derivatives and survivors.","layers":[{"id":"derivatives","name":"Derivatives","description":"Later designs.","findings":[{"id":"derivatives-finding","name":"Derivatives","description":"Later designs.","questions":[{"text":"Which later aircraft were developed from the Gamma?","kind":"provenance"},{"text":"Where does the civil family end and the military line begin?","kind":"boundary"}]}]},{"id":"survivors","name":"Survivors","description":"Preserved examples.","findings":[{"id":"survivors-finding","name":"Survivors","description":"Preserved examples.","questions":[{"text":"Does any Gamma survive, and where is it kept?","kind":"provenance"},{"text":"How is a survivor's identity authenticated?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Relay the history of the type family and cite the aviation reference used.","Help identify the type in historic photographs from described features."],"mustNot":["Invent production numbers, registrations or performance figures.","Attribute a flight or accident to the wrong airframe or crew.","Present the type as airworthy or current."],"requiresHuman":["Authenticating a surviving airframe or archive item."]},"ethics":{"considerations":["Accident and expedition histories involve real people and must be stated accurately.","Credit for record flights should go to the right crews."],"affectedParties":["Aviation historians","Museums and archives","Families of crews"]},"owners":{"steward":"The original manufacturer as designer; for any surviving airframe, the museum or collector that holds it.","roles":[],"masterSystems":["Historic civil aircraft registers","Aviation museum collections"]},"relations":[{"target":"Q627537","type":"parent","note":"registry parent class"},{"target":"monoplane","type":"related"},{"target":"cargo aircraft","type":"related","note":"main role"},{"target":"Northrop Alpha","type":"related","note":"an earlier, similar Northrop design"},{"target":"Northrop Delta","type":"related","note":"a passenger derivative"},{"target":"Northrop A-17","type":"related","note":"a military attack aircraft developed from it"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.gamma-q3941040","Wikidata: Q3941040 (https://www.wikidata.org/wiki/Q3941040)","Wikidata: Q3941040 registry item"]},"properties":{"applicability":"required","items":["kind: single-engine monoplane family note","first flight: 1932 note","construction: all-metal stressed-skin note"]},"recognition":{"applicability":"required","items":["Low-wing all-metal monoplane of the early 1930s","Fixed main gear in large spatted fairings","Single radial engine in a cowling","Cockpit set far aft on the fuselage in cargo versions","A streamlined low-wing all-metal monoplane with a single radial engine, fixed landing gear in large aerodynamic fairings, and a single cockpit set well back on the fuselage."]},"capabilities":{"applicability":"required","items":["identify the type family and its maker","relay its design features","summarise variants and notable flights","distinguish it from related Northrop types"]},"hazards":{"applicability":"required","items":["Accidents involving individual airframes","Confusing civil variants with military derivatives","Attributing a famous flight to the wrong airframe or variant"]},"interfaces":{"applicability":"required","items":["Civil aircraft registration and type approval by the United States aviation authority of the period"]},"context":{"applicability":"required","items":["Carrying mail and cargo, and flying long-distance and expedition flights in the 1930s.","Gamma 2 series variants","mail and cargo transports","record and expedition aircraft","export military variants"]}},"sources":[{"title":"Wikidata item Q3941040: Gamma","url":"https://www.wikidata.org/wiki/Q3941040","note":"identity and sense of the item"},{"title":"Wikipedia: Northrop Gamma","url":"https://en.wikipedia.org/wiki/Northrop_Gamma","note":"general description of the item"}],"openQuestions":["Should individual named airframes get their own entries?","Where should the boundary with military derivatives be drawn?","How many were built across all variants, given that sources differ?"],"resources":{"spec":"/models/things/publications/thing-q3941040/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q3941040/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-10-06T10:45:08Z","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 2026-10-09T07:30:02+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}