{ "model": { "rank": 6078, "code": "thing-q6484", "model_id": "vr.tr.airbus-a350", "name": "Airbus A350", "purpose": "Enable an AI agent to recognise an Airbus A350, establish the configuration and condition of a particular airframe, and assess proposed use or intervention against applicable evidence and limits.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.OBJ", "industry": "", "version": "", "url": "/models/thing/q6484/", "tier": 2, "score": 62, "payload": { "layer": "wikidata", "aliases": [ "Airbus A350-1000", "Airbus A350-900" ], "aliasCount": 2, "merged": 2, "knownIn": 62, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q6484", "url": "https://www.wikidata.org/wiki/Q6484", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T11:27:07Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.00866218, "turns": 1, "seconds": 136.8, "error": null }, "codex": { "seconds": 107.5, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07b9a-a2a7-76b1-8de9-436672b19e99\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: Airbus A350\nRegistry id: vr.tr.airbus-a350\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA" } } }, "metaModel": { "id": "THING-Q6484", "registryId": "vr.tr.airbus-a350", "name": "Airbus A350", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q6484/", "model": { "registry_id": "vr.tr.airbus-a350", "name": "Airbus A350", "purpose": "Enable an AI agent to recognise an Airbus A350, establish the configuration and condition of a particular airframe, and assess proposed use or intervention against applicable evidence and limits.", "definition": "The Airbus A350 is a family of long-range, twin-turbofan, wide-body transport aeroplanes with a primarily carbon-fibre-reinforced-polymer fuselage and wing, type-certificated as one product (EASA TCDS EASA.A.151) and powered only by Rolls-Royce Trent XWB engines.", "scope_statement": "This model owns the physical Airbus A350 family under vr.tr.airbus-a350 in PHY / PHY.OBJ, including variant distinctions and individual airframes with their installed configurations, condition, capabilities and restrictions; it separates family-level claims from evidence applicable to a particular aircraft.", "in_scope": [ "A350 family membership, variant identity, manufacturer serial number and registration history", "Installed engines, structural configuration, avionics standards and embodied modifications", "Aircraft-specific mass, balance, fuel, payload and performance limits", "Passenger or freight accommodation, loading interfaces and airport compatibility", "Observed condition, maintenance evidence and restrictions affecting permitted use", "Physical lifecycle from manufacture through operation, storage, modification and retirement" ], "out_of_scope": [ "Airbus as a manufacturer, business or production organisation", "Standalone engine and component models beyond their installation and effect on the aircraft", "Airline scheduling, ticketing, fleet economics and commercial service products", "Flight execution, air traffic control and airport infrastructure as independent systems", "Crew qualifications and operator approvals beyond their relationship to aircraft eligibility", "Aircraft purchase, leasing and insurance contracts beyond links establishing custody or responsibility" ], "distinguishing_features": [ "Confirm A350 identity through manufacturer identification and corresponding certification records; appearance, airline branding and flight-tracking labels alone do not establish aircraft type.", "Use the installed Rolls-Royce Trent XWB engine family as a corroborating A350 recognition test, alongside airframe identity, when distinguishing it from other widebody twinjets. [Airbus A350 family](https://www.airbus.com/en/products-services/commercial-aircraft/passenger-aircraft/a350-family)", "Distinguish the A350-1000 from the A350-900 through its longer fuselage, six-wheel main landing gear assemblies and Trent XWB-97 installation, then confirm the variant from records. [Airbus A350-1000 first flight](https://www.airbus.com/en/newsroom/press-releases/2016-11-first-a350-1000-becomes-airborne-for-its-maiden-flight)", "Treat the A350's composite fuselage and wing construction as corroborating evidence rather than a unique identifier; composite construction alone cannot distinguish it from a Boeing 787. [Airbus A350 family](https://www.airbus.com/en/products-services/commercial-aircraft/passenger-aircraft/a350-family)", "Resolve whether an A350 label denotes the family, a passenger variant or the A350F before assigning capabilities; Airbus includes all three in its family presentation, which does not establish an individual aircraft's certification or service status. [Airbus A350 family](https://www.airbus.com/en/products-services/commercial-aircraft/passenger-aircraft/a350-family)" ], "characteristics": [ { "name": "Variant and configuration applicability", "kind": "category", "unit_or_values": "Documented A350 variant, certified model designation, weight variant and modification standard; unresolved where evidence is absent", "why_it_matters": "Determines which limitations, maintenance instructions and capability claims apply." }, { "name": "Airframe identity", "kind": "relation", "unit_or_values": "Manufacturer serial number linked to registration, operator and dated identity records", "why_it_matters": "Maintains continuity when registration, ownership or operator changes." }, { "name": "Installed propulsion", "kind": "relation", "unit_or_values": "Left and right engine identities, Trent XWB model, approved rating and installation status", "why_it_matters": "Engine model and configuration affect compatibility, performance and maintenance applicability." }, { "name": "Aircraft mass and balance", "kind": "measurement", "unit_or_values": "kg and centre of gravity in percent mean aerodynamic chord, with loading condition and applicable envelope", "why_it_matters": "Distinguishes a permissible loading state from one exceeding aircraft-specific limits." }, { "name": "Fuel state and configuration", "kind": "measurement", "unit_or_values": "Usable fuel in kg, tank distribution and applicable installed capacity", "why_it_matters": "Supports endurance and balance assessment without treating advertised range as a flight entitlement." }, { "name": "Physical airport envelope", "kind": "measurement", "unit_or_values": "Length, span, height and clearances in m; turning and pavement requirements from applicable aircraft data", "why_it_matters": "Determines whether an A350 variant can use a proposed stand, taxiway or handling arrangement." }, { "name": "Installed payload accommodation", "kind": "category", "unit_or_values": "Approved cabin layout, installed seats, usable exits, cargo positions and loading restrictions", "why_it_matters": "Separates actual transport capability from typical family seating and cargo figures." }, { "name": "Structural condition", "kind": "state", "unit_or_values": "Inspected, damaged, repaired, restricted or unknown, with location, inspection method and date", "why_it_matters": "Makes damage and repair evidence available for A350-specific engineering assessment." }, { "name": "System and software configuration", "kind": "category", "unit_or_values": "Installed avionics and software standards, modification applicability and unresolved mismatches", "why_it_matters": "Prevents assuming common flight-deck appearance implies identical installed capability." }, { "name": "Utilisation and maintenance exposure", "kind": "measurement", "unit_or_values": "Flight hours, flight cycles and calendar time against applicable tasks and component limits", "why_it_matters": "Connects long-haul utilisation and calendar exposure to maintenance due status." }, { "name": "Operational eligibility", "kind": "state", "unit_or_values": "Eligible for a specified operation, restricted, unavailable or undetermined, with authority, evidence and validity time", "why_it_matters": "Keeps technical condition, maintenance release and operator-specific permission distinct." } ], "affordances": [ "Identify an A350 airframe and reconcile conflicting variant or registration records.", "Compare its installed configuration with applicable A350 limitations and modification requirements.", "Screen a proposed payload, mission or airport assignment using aircraft-specific evidence.", "Identify missing inspections, configuration evidence or maintenance actions requiring qualified review.", "Assess whether proposed cabin, engine or avionics changes have an applicable approved basis.", "Track storage, return-to-service and retirement prerequisites without inferring readiness from physical completeness." ] }, "sources": [ { "id": "airbus-a350", "title": "A350 passenger aircraft family (Airbus)", "url": "", "what_it_supports": "Family definition, in-production models, quoted dimensions, MTOW, range, seating and engine fit.", "url_status": "dead" }, { "id": "easa-tcds-a151", "title": "Type Certificate Data Sheet EASA.A.151 - Airbus A350 (European Union Aviation Safety Agency)", "url": "", "what_it_supports": "Type-certificate identity, approved models, airworthiness basis (CS-25) and certified limitations." }, { "id": "wikipedia-a350", "title": "Airbus A350 (Wikipedia / Wikimedia Foundation)", "url": "https://en.wikipedia.org/wiki/Airbus_A350", "what_it_supports": "Model history including cancelled -800, ULR and freighter, operators, and commonly cited dimensions and dates.", "url_status": "live" }, { "id": "icao-8643", "title": "Doc 8643, Aircraft Type Designators (International Civil Aviation Organization)", "url": "", "what_it_supports": "ICAO type designators A359 and A35K used in flight plans and ATC." }, { "id": "wikidata-q187366", "title": "Airbus A350 (Wikidata Q187366)", "url": "https://www.wikidata.org/wiki/Q187366", "what_it_supports": "Canonical catalogue identifier for the family as a class of aircraft.", "url_status": "live" } ], "structure": { "bundles": [ { "id": "a350-identity-and-applicability", "name": "A350 Identity and Applicability", "description": "Establish which A350 is represented and which claims apply to it.", "rationale": "Family branding can conceal differences between variants, production standards and individual airframes.", "layers": [ { "id": "family-and-variant", "name": "Family and Variant", "description": "Resolve the registry concept into an evidenced aircraft variant without creating duplicate registry things.", "findings": [ { "id": "variant-evidence", "name": "Variant Evidence", "description": "Record the relationship between commercial A350 naming, certified model designation and configuration options.", "questions": [ { "text": "Which manufacturer and certification records establish this aircraft's A350 variant and model designation?", "kind": "provenance", "id": "variant-evidence-q01" }, { "text": "Does an ultra-long-range, regional or freighter label describe a distinct variant, an installed configuration or a proposed capability?", "kind": "definition", "id": "variant-evidence-q02" } ] } ] }, { "id": "airframe-continuity", "name": "Airframe Continuity", "description": "Anchor changing registration and configuration records to one physical A350.", "findings": [ { "id": "serial-and-configuration-history", "name": "Serial and Configuration History", "description": "Preserve manufacturer serial identity and the effective dates of changes that alter technical applicability.", "questions": [ { "text": "Which manufacturer serial number anchors this A350 across registration and operator changes?", "kind": "provenance", "id": "serial-and-configuration-history-q01" }, { "text": "Which embodied modifications or weight-variant changes determine the technical documents applicable today?", "kind": "boundary", "id": "serial-and-configuration-history-q02" } ] } ] } ] }, { "id": "a350-airframe-and-propulsion", "name": "A350 Airframe and Propulsion", "description": "Represent the installed structural and propulsion configuration and its condition.", "rationale": "Composite structural assessment and variant-dependent Trent XWB installations require more than a generic intact-or-broken state.", "layers": [ { "id": "composite-structure", "name": "Composite Structure", "description": "Connect airframe damage observations to the affected material, structural zone and approved assessment basis.", "findings": [ { "id": "damage-and-repair-evidence", "name": "Damage and Repair Evidence", "description": "Record impact, lightning, surface or other damage without inferring structural acceptability from appearance alone.", "questions": [ { "text": "Which A350 structural zone and material are affected, and what inspection establishes the damage extent?", "kind": "measurement", "id": "damage-and-repair-evidence-q01" }, { "text": "Which applicable repair instruction or engineering disposition establishes restrictions, repair needs or acceptance?", "kind": "action", "id": "damage-and-repair-evidence-q02" } ] } ] }, { "id": "trent-xwb-installation", "name": "Trent XWB Installation", "description": "Track engine installation compatibility and aircraft-level consequences of engine condition.", "findings": [ { "id": "engine-compatibility-and-condition", "name": "Engine Compatibility and Condition", "description": "Associate each installed engine with its identity, approved configuration and unresolved condition evidence.", "questions": [ { "text": "What engine model, serial number and approved rating are installed at each position on this A350?", "kind": "provenance", "id": "engine-compatibility-and-condition-q01" }, { "text": "Which recorded engine defects, life limits or required inspections affect this airframe's availability?", "kind": "boundary", "id": "engine-compatibility-and-condition-q02" } ] } ] } ] }, { "id": "a350-systems-and-degraded-capability", "name": "A350 Systems and Degraded Capability", "description": "Connect installed digital systems and reported faults to evidenced capability.", "rationale": "A350 capability depends on configuration and interacting system states that cannot be inferred from the aircraft name.", "layers": [ { "id": "flight-deck-and-avionics-standard", "name": "Flight Deck and Avionics Standard", "description": "Identify the installed flight-control, avionics and software baseline.", "findings": [ { "id": "installed-digital-capability", "name": "Installed Digital Capability", "description": "Distinguish functions evidenced on this aircraft from functions advertised elsewhere in the A350 family.", "questions": [ { "text": "Which records establish the installed A350 flight-control and avionics software standards?", "kind": "provenance", "id": "installed-digital-capability-q01" }, { "text": "Which navigation, approach or communications capabilities require equipment or approvals not yet evidenced for this aircraft?", "kind": "boundary", "id": "installed-digital-capability-q02" } ] } ] }, { "id": "faults-and-dispatch-effects", "name": "Faults and Dispatch Effects", "description": "Translate observed system degradation into questions for applicable dispatch and maintenance documents.", "findings": [ { "id": "degraded-configuration-assessment", "name": "Degraded Configuration Assessment", "description": "Preserve fault combinations, timestamps and approved dispositions without independently declaring the aircraft dispatchable.", "questions": [ { "text": "Which A350 system faults are active, deferred or historical, and what evidence distinguishes those states?", "kind": "measurement", "id": "degraded-configuration-assessment-q01" }, { "text": "Under the applicable operator minimum equipment list, what restrictions, procedures and rectification deadlines apply to this combination?", "kind": "action", "id": "degraded-configuration-assessment-q02" } ] } ] } ] }, { "id": "a350-payload-and-mission-envelope", "name": "A350 Payload and Mission Envelope", "description": "Establish what this configured airframe can carry and which proposed missions merit further operational assessment.", "rationale": "A350 seating, fuel capacity and advertised range vary with configuration and cannot substitute for aircraft-specific loading and performance evidence.", "layers": [ { "id": "mass-fuel-and-range", "name": "Mass, Fuel and Range", "description": "Represent the aircraft's approved limits and the conditions behind a mission assessment.", "findings": [ { "id": "conditional-mission-feasibility", "name": "Conditional Mission Feasibility", "description": "Keep proposed payload and fuel separate from certified limits and calculated performance.", "questions": [ { "text": "What mass limits, fuel capacity and centre-of-gravity envelope apply to this A350's installed weight and fuel configuration?", "kind": "measurement", "id": "conditional-mission-feasibility-q01" }, { "text": "Which approved performance calculation supports the proposed payload and sector under stated runway, weather and reserve assumptions?", "kind": "provenance", "id": "conditional-mission-feasibility-q02" } ] } ] }, { "id": "cabin-and-cargo-configuration", "name": "Cabin and Cargo Configuration", "description": "Represent installed accommodation and loading constraints for the relevant passenger or freight configuration.", "findings": [ { "id": "usable-payload-positions", "name": "Usable Payload Positions", "description": "Record usable seats, exits and cargo positions rather than assigning typical brochure capacity.", "questions": [ { "text": "Which approved layout establishes installed seating, usable exits and cargo positions for this A350?", "kind": "provenance", "id": "usable-payload-positions-q01" }, { "text": "Which compartment, floor, restraint and balance limits constrain the proposed passengers or cargo?", "kind": "boundary", "id": "usable-payload-positions-q02" } ] } ] } ] }, { "id": "a350-airport-and-service-interfaces", "name": "A350 Airport and Service Interfaces", "description": "Match aircraft dimensions, landing gear and servicing interfaces to proposed ground facilities.", "rationale": "A350 variant geometry and ground loads affect stand access, pavement compatibility, handling and servicing.", "layers": [ { "id": "geometry-and-ground-loading", "name": "Geometry and Ground Loading", "description": "Assess physical fit and surface compatibility using applicable A350 planning data.", "findings": [ { "id": "airport-physical-compatibility", "name": "Airport Physical Compatibility", "description": "Relate aircraft envelope and landing-gear configuration to a specific airport movement or parking proposal.", "questions": [ { "text": "What dimensions, turning envelope and landing-gear configuration apply to this A350 variant?", "kind": "measurement", "id": "airport-physical-compatibility-q01" }, { "text": "Do the proposed stand, taxi route and pavement satisfy the aircraft's clearance and loading requirements at the intended mass?", "kind": "boundary", "id": "airport-physical-compatibility-q02" } ] } ] }, { "id": "ground-support-compatibility", "name": "Ground Support Compatibility", "description": "Establish compatibility of towing, lifting, access and servicing equipment.", "findings": [ { "id": "approved-handling-interfaces", "name": "Approved Handling Interfaces", "description": "Connect planned ground work to the equipment ratings and aircraft procedures that govern it.", "questions": [ { "text": "Which A350-specific interface, capacity and clearance requirements apply to the proposed ground equipment?", "kind": "boundary", "id": "approved-handling-interfaces-q01" }, { "text": "Which applicable procedure and aircraft configuration prerequisites govern towing, jacking or servicing?", "kind": "action", "id": "approved-handling-interfaces-q02" } ] } ] } ] }, { "id": "a350-airworthiness-and-lifecycle", "name": "A350 Airworthiness and Lifecycle", "description": "Connect configuration, utilisation and maintenance evidence to time-bounded eligibility for a proposed action.", "rationale": "A physically complete A350 may still have overdue obligations, unresolved defects or storage-related return-to-service requirements.", "layers": [ { "id": "continuing-airworthiness-evidence", "name": "Continuing Airworthiness Evidence", "description": "Determine which obligations apply to this airframe and whether completion is evidenced.", "findings": [ { "id": "applicable-obligations-and-release", "name": "Applicable Obligations and Release", "description": "Separate applicability, compliance evidence and authorised release rather than compressing them into one readiness flag.", "questions": [ { "text": "Which current directives, maintenance tasks and life limits apply to this A350 serial number and installed configuration?", "kind": "boundary", "id": "applicable-obligations-and-release-q01" }, { "text": "What dated records demonstrate completion and release, and which missing records prevent a supported eligibility judgment?", "kind": "provenance", "id": "applicable-obligations-and-release-q02" } ] } ] }, { "id": "storage-and-operational-transition", "name": "Storage and Operational Transition", "description": "Represent changes between operation, maintenance, storage, return to service and retirement.", "findings": [ { "id": "transition-prerequisites", "name": "Transition Prerequisites", "description": "Make outstanding A350 preservation, restoration and approval requirements explicit before a proposed lifecycle transition.", "questions": [ { "text": "What preservation actions, environmental exposure and elapsed storage time are documented for this A350?", "kind": "provenance", "id": "transition-prerequisites-q01" }, { "text": "Which inspections, restoration tasks and authorised releases remain necessary for the proposed return to service or other transition?", "kind": "action", "id": "transition-prerequisites-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-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "A350-900 (baseline passenger)", "A350-1000 (stretched passenger)", "A350-900ULR (ultra-long-range -900)", "A350F (freighter)", "ACJ350 / ACJ350 XWB (corporate/VIP)", "A350-900 high-gross-weight sub-variants", "A350-800 (launched then cancelled; still appears in older literature)" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of Airbus A350 this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "scheme": "Wikidata", "value_or_pattern": "Q187366", "note": "Item for the A350 family." }, { "scheme": "ICAO aircraft type designator (Doc 8643)", "value_or_pattern": "A359 | A35K", "note": "A359 covers A350-900 / -900ULR; A35K covers A350-1000. Freighter code follows the certified model." }, { "scheme": "IATA aircraft type code", "value_or_pattern": "359 | 351", "note": "359 = A350-900 family; 351 = A350-1000. Used in schedules and SSIM, not in ATC." }, { "scheme": "EASA type certificate", "value_or_pattern": "EASA.A.151", "note": "Covers the A350 type as certificated in Europe." }, { "scheme": "FAA type certificate", "value_or_pattern": "A58NM", "note": "U.S. validation of the A350 type." }, { "scheme": "Airbus manufacturer serial number", "value_or_pattern": "MSN nnnn", "note": "Airframe identity assigned at Toulouse/final assembly; used with the registration." }, { "scheme": "National registration mark", "value_or_pattern": "national prefix + remaining marks (e.g. 9V-SGA)", "note": "The public identity of an individual aeroplane; not a type code." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of Airbus A350 this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "EASA CS-25 (Large Aeroplanes) and TCDS EASA.A.151 - European Union Aviation Safety Agency", "FAA 14 CFR Part 25 and Type Certificate A58NM - Federal Aviation Administration", "ICAO Annex 8 (Airworthiness of Aircraft) - International Civil Aviation Organization", "ICAO Annex 16 Volumes I-III (noise, engine emissions, CO2) - International Civil Aviation Organization", "ICAO Annex 6 / Doc 10085 EDTO and FAA ETOPS rules for extended twin operations (A350 is approved to 370 minutes) - ICAO and FAA", "EASA/FAA airworthiness directives specific to A350 structure, systems and Trent XWB - EASA and FAA", "ICAO Doc 8643 aircraft type designators for flight planning - International Civil Aviation Organization", "CAAC type-certificate validation for Chinese-registered aircraft - Civil Aviation Administration of China" ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of Airbus A350 this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Scheduled long-haul passenger service as a 777-300ER / A340 / early A330 replacement on intercontinental trunk routes.", "Ultra-long-haul passenger flying on the A350-900ULR (notably Singapore-New York non-stop).", "Two-class and three-class airline cabins of roughly 300-410 seats depending on -900 vs -1000 and density.", "VIP and head-of-state transport as the ACJ350.", "Dedicated freight as the A350F, sharing the type but with a main-deck cargo door and reinforced floor.", "Flight-crew operations under a single A350 type rating, with differences training between -900 and -1000." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of Airbus A350 this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "quantity": "wingspan", "typical_range": "64.75", "unit": "m" }, { "quantity": "overall length", "typical_range": "66.8-73.8", "unit": "m" }, { "quantity": "maximum take-off mass", "typical_range": "280000-319000", "unit": "kg" }, { "quantity": "design range", "typical_range": "15000-18000", "unit": "km" }, { "quantity": "typical cruise Mach number", "typical_range": "0.85", "unit": "Mach" }, { "quantity": "typical two-class seating", "typical_range": "300-410", "unit": "seats" }, { "quantity": "take-off thrust per engine (Trent XWB-84 to XWB-97)", "typical_range": "374-431", "unit": "kN" }, { "quantity": "approved extended-diversion time (ETOPS/EDTO)", "typical_range": "370", "unit": "min" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of Airbus A350 this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Trent XWB in-service durability issues (including intermediate-pressure compressor blade and oil-system airworthiness directives), more demanding on the higher-thrust XWB-97 of the -1000.", "Barely visible impact damage and specialised NDT/repair of CFRP fuselage and wing after ground collisions, hail or tool drops.", "Lightning-strike current path and mesh/foil protection damage on composite structure.", "Fly-by-wire, FMS and flight-warning-system software anomalies addressed by ADs rather than by aerodynamic stall in the classical sense.", "Cabin-altitude, emergency-oxygen and pressurisation system defects (subject of type-specific ADs).", "Lithium-battery thermal runaway in cargo or cabin PEDs, as on other passenger types.", "Tailstrike and runway-excursion risk, increased on the longer A350-1000.", "Engine-out and contaminated-runway performance limits on hot-and-high or short fields despite ETOPS/EDTO approval." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of Airbus A350 this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Airbus markets the type as A350 XWB (Extra Wide Body); operators, passengers and ATC usually say A350, A359 or A35K.", "Schedules use IATA 359/351; flight plans and radar labels use ICAO A359/A35K - the two alphabets are not interchangeable.", "FAA documentation speaks of ETOPS; EASA and ICAO speak of EDTO for the same 370-minute twin-engine diversion approval.", "Chinese-registered aircraft need CAAC validation of the EASA type certificate in addition to the European/US approvals.", "Ultra-long-range cabin and fuel configurations are concentrated at a few Asian and Middle Eastern operators; European majors typically fly standard -900/-1000 on shorter long-haul." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of Airbus A350 this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "name": "Boeing 787 Dreamliner", "difference": "Also a CFRP wide-body twin, but a different type (smaller cabin cross-section and typically lower MTOW); 787 uses GEnx or Trent 1000, A350 uses only Trent XWB; ICAO B788/B789/B78X vs A359/A35K." }, { "name": "Airbus A330-900 (A330neo)", "difference": "Same manufacturer and similar mission on some routes, but a different type certificate (EASA.A.004), metal fuselage, smaller cross-section, and Trent 7000 or PW1100G engines; ICAO A339 vs A359." }, { "name": "Boeing 777-300ER", "difference": "Closest older capacity match to the A350-1000, but metallic structure, two-crew 777 type, GE90 engines, and ICAO B77W; not a composite XWB design." }, { "name": "Boeing 777-9", "difference": "Direct capacity competitor to the A350-1000; distinguished by folding wingtips, GE9X engines, 777X type certificate, and ICAO B779." }, { "name": "Airbus A380-800", "difference": "Four-engine very large aeroplane (ICAO A388), double-deck, different type certificate; not a twin and not in the A350 family." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of Airbus A350 this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does an existing Vercy world model already own the A350 concept, requiring this registry entry to link to it rather than receive a separate publication?", "With no registry definition recorded, how should A350F and historical or proposed A350 variants be represented within this single entry, and what is each one's evidenced certification status?", "What authoritative mapping connects commercial variant labels, certified model designations, weight variants and modification applicability by manufacturer serial number?", "Which current approved manuals, operator documents and aircraft records can the agent access to assess limits and eligibility beyond public family-level descriptions?", "What evidence freshness and responsible-authority requirements should govern unresolved conflicts between observed aircraft condition, maintenance records and operational eligibility?" ], "statistics": { "bundles": 7, "layers": 13, "findings": 20, "questions": 32 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "unclassified", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a Airbus A350, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise an Airbus A350, establish the configuration and condition of a particular airframe, and assess proposed use or intervention against applicable evidence and limits.", "characteristics": { "substance": "material", "origin": "manufactured", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: Airbus A350-1000, Airbus A350-900.", "2 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 62 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a Airbus A350, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Recognised by form and material. The registry holds no appearance data, so what a Airbus A350 looks like has to come from research." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "Airbus A350-1000", "Airbus A350-900" ] } ], "standing": "Described in 62 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 2 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one Airbus A350 from another, and a Airbus A350 from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a Airbus A350 sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a Airbus A350 from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a Airbus A350 is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a Airbus A350 is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a Airbus A350 is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a Airbus A350 is, how it got there and where it may go (varies).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a Airbus A350 is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a Airbus A350 is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a Airbus A350 passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a Airbus A350 between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a Airbus A350, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a Airbus A350 is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "use-and-operation", "name": "Use and operation", "description": "What can be done with a Airbus A350 and what it takes to do it.", "rationale": "An agent that can recognise a thing but not act on it has only half a model.", "layers": [ { "id": "intended-use", "name": "Intended use and function", "description": "What a Airbus A350 is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a Airbus A350 performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "function-and-purpose-q02", "text": "Who or what asserted this about the use of a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "function-and-purpose-q03", "text": "What may an agent decide or do once the use of a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "handling-and-procedure", "name": "Handling and procedure", "description": "The steps, skills and tools involved in using a Airbus A350.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a Airbus A350 at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "procedures-and-skills-q02", "text": "Who or what asserted this about handling a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "procedures-and-skills-q03", "text": "What may an agent decide or do once handling a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a Airbus A350 came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a Airbus A350 and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a Airbus A350 is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a Airbus A350, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a Airbus A350, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a Airbus A350 is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 13, "findings": 15, "questions": 45 } } } }