{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T08:18:55Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 19.4,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a094b1-8b20-75f3-a02b-c770a6486733\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: C-9\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1001 registered ",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 78.5,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a094b1-8a5a-7363-9f7e-61108cbca5ff\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: C-9\nRegistry id: vr.tr.c-9\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext for this"
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:41:21+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "failure_modes_and_hazards",
        "owners",
        "visual_identification"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:30+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q3686766",
    "registryId": "vr.tr.c-9",
    "name": "C-9",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q3686766/",
  "model": {
    "registry_id": "vr.tr.c-9",
    "name": "C-9",
    "purpose": "Enable an agent to recognise a C-9 aircraft, distinguish its variant and configuration, assess its recorded condition, and identify the evidence needed for an intended transport role.",
    "definition": "C-9 is a United States military aircraft designation for adaptations of the McDonnell Douglas DC-9 twin-engine jet airliner used for aeromedical evacuation and transport.",
    "scope_statement": "Provisionally interpret vr.tr.c-9 as the McDonnell Douglas C-9 military aircraft family derived from the DC-9, pending confirmation of the registry's source identifier; this model owns family-specific recognition, configuration, operating constraints and condition evidence, while referencing individual aircraft records.",
    "in_scope": [
      "C-9 designation evidence, manufacturer lineage and variant identification",
      "Variant-specific passenger, cargo, aeromedical and special-mission configurations",
      "Installed propulsion, cabin systems and loading interfaces",
      "Configuration-dependent payload, balance and operating limitations",
      "Aircraft condition, maintenance evidence and authorized uses"
    ],
    "out_of_scope": [
      "Other objects or aircraft assigned the designation C-9 under different naming systems",
      "The complete civil DC-9 family and its airline operations",
      "Individual aircraft identity, ownership and maintenance logs as independently maintained records",
      "Patient diagnosis, treatment and clinical transport decisions",
      "Airport infrastructure, air traffic control and flight-crew qualification models"
    ],
    "distinguishing_features": [
      "Require designation or manufacturer records establishing the military C-9 relationship to the DC-9; a similar appearance or a name containing '9' is insufficient. [NASA C-9B](https://espo.nasa.gov/aircraft/C-9B)",
      "Use twin jet engines, swept wings and a T-tail as supporting recognition features, then require documentary identification because the civil DC-9 shares the family appearance. [US Air Force C-9 description](https://www.af.mil/News/Article-Display/Article/133275/historic-c-9-heads-to-andrews-for-retirement/)",
      "Distinguish the C-9A aeromedical role from other C-9 configurations using the variant designation and installed patient-handling equipment. [Air Force Medical Service C-9A history](https://www.airforcemedicine.af.mil/News/Display/Article/1459865/the-cadillac-of-medevac-the-c9as-lasting-mark-on-the-aeromedical-evacuation-sys/)",
      "Recognise Skytrain II as the Navy's C-9B variant name; do not use that name as proof that every C-9 has the same cabin equipment or mission. [NAVAIR C-9 history](https://www.navair.navy.mil/node/21446)"
    ],
    "characteristics": [
      {
        "name": "Designation and identification confidence",
        "kind": "category",
        "unit_or_values": "Recorded designation, naming authority and era; confirmed, provisional or conflicting",
        "why_it_matters": "The registry supplies neither a definition nor a source identifier, so the aircraft interpretation must remain explicit."
      },
      {
        "name": "Variant and parent design",
        "kind": "relation",
        "unit_or_values": "Documented C-9 variant linked to its applicable DC-9 design baseline",
        "why_it_matters": "Determines which technical documents and mission capabilities apply."
      },
      {
        "name": "Installed cabin configuration",
        "kind": "category",
        "unit_or_values": "Passenger, cargo, aeromedical, mixed or documented special configuration",
        "why_it_matters": "An aircraft's designation alone does not establish its present carrying capability."
      },
      {
        "name": "Approved occupant and patient capacity",
        "kind": "measurement",
        "unit_or_values": "Number of crew positions, passenger seats, litter positions and ambulatory-patient positions, per approved layout",
        "why_it_matters": "Prevents combining capacities from incompatible cabin arrangements."
      },
      {
        "name": "Mass and centre-of-gravity limits",
        "kind": "measurement",
        "unit_or_values": "kg or lb; centre of gravity in percent mean aerodynamic chord or the manual's specified datum",
        "why_it_matters": "A proposed load must satisfy the applicable configuration's weight and balance limits."
      },
      {
        "name": "Loading geometry and restraint limits",
        "kind": "measurement",
        "unit_or_values": "Door clearances in mm or in; floor loading in kPa or lb/ft²; restraint ratings in the approved document's units",
        "why_it_matters": "Cargo or patient equipment must fit the loading path and have an approved restraint arrangement."
      },
      {
        "name": "Installed engine configuration",
        "kind": "relation",
        "unit_or_values": "Engine model, installation approval and applicable operating-limit document",
        "why_it_matters": "Performance and maintenance requirements must follow the installed equipment."
      },
      {
        "name": "Mission performance basis",
        "kind": "measurement",
        "unit_or_values": "Range in nmi or km; runway requirement in m or ft, with payload, fuel, weather and runway assumptions",
        "why_it_matters": "A family-level headline range cannot establish suitability for a particular flight."
      },
      {
        "name": "Technical and operational disposition",
        "kind": "state",
        "unit_or_values": "Unknown, serviceable, restricted, maintenance, stored, retired or static display; dated authority evidence recorded separately",
        "why_it_matters": "Physical presence and historical capability do not establish permission or readiness to fly."
      }
    ],
    "affordances": [
      "Classify a candidate aircraft against documented C-9 identity and variant evidence.",
      "Compare an installed cabin layout with a proposed passenger, cargo or aeromedical requirement.",
      "Screen proposed loads against documented access, restraint, weight and balance constraints.",
      "Identify configuration-specific technical manuals and unresolved maintenance dependencies.",
      "Flag missing evidence that prevents recommending flight, loading, conversion or ground handling.",
      "Separate historical mission capability from the aircraft's currently documented permitted uses."
    ],
    "agent_conduct": {
      "may": [
        "Identify a C-9 aircraft and its variant from serial number and documentation.",
        "Report its configuration and status from official records."
      ],
      "must_not": [
        "Recommend flight, loading or patient transport without current airworthiness and configuration records.",
        "Make clinical decisions about patients transported on board.",
        "Confuse the C-9 designation with unrelated uses of the same code.",
        "Share operational details of military flights beyond public records."
      ],
      "requires_human": [
        "Approving the aircraft for an aeromedical mission or a conversion.",
        "Any decision about moving a patient by air."
      ]
    },
    "ethics": {
      "considerations": [
        "Aeromedical evacuation carries sick and wounded people whose lives depend on safe operation.",
        "Military flight details can put crews and passengers at risk if disclosed."
      ],
      "affected_parties": [
        "Patients and medical crews",
        "Aircrew",
        "Service members"
      ]
    },
    "owners": {
      "steward": "The military operator; the national military aircraft register holds its record.",
      "master_systems": [
        "Military aircraft serial registers"
      ]
    },
    "visual_identification": [
      "A twin-jet airliner shape with engines mounted on the rear fuselage and a T-tail.",
      "Military markings and serial numbers, and on aeromedical versions red cross markings.",
      "A large forward cargo door on some variants."
    ],
    "failure_modes_and_hazards": [
      "Ageing airframes need strict maintenance to stay airworthy.",
      "Improperly secured medical equipment or litters can endanger patients."
    ],
    "what_it_is_for": [
      "The C-9 family served military aeromedical evacuation and passenger or logistical transport roles.",
      "Historical records, preserved aircraft and maintenance documentation distinguish medical evacuation configurations from other transport variants."
    ],
    "standards_and_regulation": [
      "The United States Department of Defense Mission Design Series designation system classifies C-9 aircraft within the cargo and transport mission category."
    ]
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q3686766: C-9",
      "url": "https://www.wikidata.org/wiki/Q3686766",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: McDonnell Douglas C-9",
      "url": "https://en.wikipedia.org/wiki/McDonnell_Douglas_C-9",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "designation-and-lineage",
        "name": "Designation and lineage",
        "description": "Resolve what C-9 means and identify the applicable aircraft variant.",
        "rationale": "A short designation without a registry definition cannot safely determine technical applicability.",
        "layers": [
          {
            "id": "registry-referent",
            "name": "Registry referent",
            "description": "Connect the registry label to a documented aircraft concept.",
            "findings": [
              {
                "id": "designation-resolution",
                "name": "Designation resolution",
                "description": "Treat the McDonnell Douglas interpretation as provisional until the registry source confirms it.",
                "questions": [
                  {
                    "text": "Which source identifier and designation authority establish what vr.tr.c-9 denotes?",
                    "kind": "provenance",
                    "id": "designation-resolution-q01"
                  },
                  {
                    "text": "Does this entry denote the C-9 family, a particular variant, or a different use of C-9?",
                    "kind": "boundary",
                    "id": "designation-resolution-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "variant-applicability",
            "name": "Variant applicability",
            "description": "Associate a recognized C-9 variant with its design baseline and technical evidence.",
            "findings": [
              {
                "id": "variant-evidence",
                "name": "Variant evidence",
                "description": "Keep variant designation, popular name and installed modifications separately identifiable.",
                "questions": [
                  {
                    "text": "Which records establish the variant and its relationship to the underlying DC-9 design?",
                    "kind": "provenance",
                    "id": "variant-evidence-q01"
                  },
                  {
                    "text": "Which capabilities belong to that variant, and which require an additional documented modification?",
                    "kind": "boundary",
                    "id": "variant-evidence-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "transport-cabin-and-loading",
        "name": "Transport cabin and loading",
        "description": "Describe the approved carrying arrangement and the physical path for loading it.",
        "rationale": "C-9 mission suitability depends on the installed layout and loading provisions.",
        "layers": [
          {
            "id": "occupant-and-patient-layout",
            "name": "Occupant and patient layout",
            "description": "Identify seating, patient positions and mission-equipment dependencies.",
            "findings": [
              {
                "id": "approved-cabin-arrangement",
                "name": "Approved cabin arrangement",
                "description": "Record each approved layout without merging passenger and patient maxima.",
                "questions": [
                  {
                    "text": "How many seats, litter positions and attendant positions are approved in the installed arrangement?",
                    "kind": "measurement",
                    "id": "approved-cabin-arrangement-q01"
                  },
                  {
                    "text": "Which oxygen, electrical, access and restraint provisions must be verified before accepting a proposed aeromedical fit?",
                    "kind": "action",
                    "id": "approved-cabin-arrangement-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "cargo-access-and-restraint",
            "name": "Cargo access and restraint",
            "description": "Relate payload dimensions and mass to actual door, floor and attachment provisions.",
            "findings": [
              {
                "id": "load-path-compatibility",
                "name": "Load-path compatibility",
                "description": "Require configuration-specific evidence for loading and securing cargo or mission equipment.",
                "questions": [
                  {
                    "text": "What door openings, loading heights and interior clearances constrain the proposed load?",
                    "kind": "measurement",
                    "id": "load-path-compatibility-q01"
                  },
                  {
                    "text": "Which approved floor limits and restraint arrangements apply to its mass and position?",
                    "kind": "provenance",
                    "id": "load-path-compatibility-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "flight-envelope-and-systems",
        "name": "Flight envelope and systems",
        "description": "Connect installed aircraft systems with the limits governing a proposed transport mission.",
        "rationale": "A C-9 family's published capability cannot replace variant- and condition-specific performance evidence.",
        "layers": [
          {
            "id": "propulsion-and-cabin-services",
            "name": "Propulsion and cabin services",
            "description": "Identify installed engines and the systems supporting flight and cabin use.",
            "findings": [
              {
                "id": "installed-system-baseline",
                "name": "Installed system baseline",
                "description": "Tie propulsion, pressurization and cabin-service capability to applicable configuration documents.",
                "questions": [
                  {
                    "text": "Which engine models and approved modifications define the aircraft's performance baseline?",
                    "kind": "provenance",
                    "id": "installed-system-baseline-q01"
                  },
                  {
                    "text": "Which cabin-pressure, electrical or environmental limitations constrain the intended passenger or patient mission?",
                    "kind": "action",
                    "id": "installed-system-baseline-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "payload-fuel-and-runway",
            "name": "Payload, fuel and runway",
            "description": "Record the coupled constraints on load, fuel and airfield suitability.",
            "findings": [
              {
                "id": "mission-envelope-evidence",
                "name": "Mission envelope evidence",
                "description": "Keep performance values attached to their flight-manual assumptions and revision.",
                "questions": [
                  {
                    "text": "What mass, balance and fuel limits apply to the proposed cabin layout and load?",
                    "kind": "measurement",
                    "id": "mission-envelope-evidence-q01"
                  },
                  {
                    "text": "Which approved performance data support the required route and runway under the stated conditions?",
                    "kind": "provenance",
                    "id": "mission-envelope-evidence-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "continued-use-and-disposition",
        "name": "Continued use and disposition",
        "description": "Assess whether a particular C-9 can support the intended activity using dated technical and authority records.",
        "rationale": "Historical transport capability, maintenance condition and permission to operate must be evaluated separately.",
        "layers": [
          {
            "id": "airframe-and-equipment-condition",
            "name": "Airframe and equipment condition",
            "description": "Connect accumulated usage and recorded defects to applicable inspection and maintenance requirements.",
            "findings": [
              {
                "id": "maintenance-applicability",
                "name": "Maintenance applicability",
                "description": "Identify relevant structural, engine and mission-equipment obligations without asserting undocumented defects.",
                "questions": [
                  {
                    "text": "What recorded flight hours, cycles, storage history and inspection results determine the applicable C-9 maintenance tasks?",
                    "kind": "measurement",
                    "id": "maintenance-applicability-q01"
                  },
                  {
                    "text": "Which unresolved defects, life limits or mandatory instructions restrict the intended use?",
                    "kind": "action",
                    "id": "maintenance-applicability-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "authority-and-lifecycle-state",
            "name": "Authority and lifecycle state",
            "description": "Distinguish flight authorization from storage, preservation and display status.",
            "findings": [
              {
                "id": "permitted-use-evidence",
                "name": "Permitted-use evidence",
                "description": "Require current, operator-specific evidence before recommending an operational action.",
                "questions": [
                  {
                    "text": "Which military or civil authority, governing documents and release records apply to this aircraft's present operation?",
                    "kind": "provenance",
                    "id": "permitted-use-evidence-q01"
                  },
                  {
                    "text": "Does its documented disposition permit flight, ground operation, towing, cabin access or static display only?",
                    "kind": "action",
                    "id": "permitted-use-evidence-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "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.",
        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
        "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.",
                "evidence": [
                  "The registry supplies no sense or aliases; the aircraft interpretation is plausible but must be checked against the originating registry record because C-9 is an ambiguous designation.",
                  "These statements are recalled knowledge, not researched findings.",
                  "Dimensions, capacities, operating limits and applicable requirements should be checked for the specific variant and configuration."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of C-9 this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-kinds",
                "name": "Kinds and varieties",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "C-9A Nightingale",
                  "C-9B Skytrain II"
                ],
                "questions": [
                  {
                    "id": "evidence-kinds-q01",
                    "text": "Which of these kinds and varieties hold for the sense of C-9 this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-identifiers",
                "name": "Identifiers and schemes",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  {
                    "scheme": "United States military Mission Design Series (MDS)",
                    "value_or_pattern": "C-9",
                    "note": "Identifies an aircraft design family; suffixes such as A and B distinguish variants, while individual aircraft have separate serial numbers."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-identifiers-q01",
                    "text": "Which of these identifiers and schemes hold for the sense of C-9 this model covers, and on what evidence?",
                    "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.",
                "evidence": [
                  "Military aeromedical evacuation",
                  "Military personnel transport",
                  "Military cargo and logistics transport"
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of C-9 this model covers, and on what evidence?",
                    "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.",
                "evidence": [
                  "Engine failure or loss of thrust",
                  "Structural fatigue and corrosion in aging airframes",
                  "Loss of cabin pressurization at altitude",
                  "Incorrect loading or cargo restraint affecting balance and flight safety"
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of C-9 this model covers, and on what evidence?",
                    "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.",
                "evidence": [
                  {
                    "name": "McDonnell Douglas DC-9",
                    "difference": "The DC-9 is the parent commercial airliner family; C-9 denotes military adaptations."
                  },
                  {
                    "name": "C-9A Nightingale",
                    "difference": "A particular C-9 variant configured for aeromedical evacuation."
                  },
                  {
                    "name": "C-9B Skytrain II",
                    "difference": "A particular C-9 variant used for military passenger and cargo transport."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of C-9 this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Does the registry's original source identify the McDonnell Douglas C-9, and what is that source's persistent identifier?",
    "Does an existing Vercy world model already own this aircraft concept, requiring a link instead of a second model?",
    "Which variants, including any VC-prefixed derivatives, belong within this registry entry's authoritative boundary?",
    "Which authoritative manuals establish variant-specific dimensions, capacities, engine installations, performance limits and approved cabin arrangements?",
    "Which operator-specific maintenance programs, mandatory instructions and operating authorities govern any individual aircraft being assessed?"
  ],
  "statistics": {
    "bundles": 5,
    "layers": 9,
    "findings": 14,
    "questions": 22
  }
}
