{
  "id": "FN-01-PROTOTYPE-V1",
  "revision": "V1.1 · dimensional envelope / 16 new component groups",
  "created": "2026-10-16",
  "overview": [
    [
      "Configuration",
      "Low wing / T-tail / 2 seats"
    ],
    [
      "Reference",
      "Panthera / public geometry and performance study"
    ],
    [
      "Structure",
      "Aluminum + selected aircraft-grade fabric"
    ],
    [
      "Mass target",
      "<500 kg MTOW / not demonstrated"
    ],
    [
      "Status",
      "Concept only / no prototype or test evidence"
    ]
  ],
  "materials": [
    [
      "Fuselage / cabin",
      "Aluminum frames + stringers + stressed sheet skin",
      "โครงหลักและผิวรับแรงร่วมกัน · alloy / temper / gauge / joints รอ stress sizing"
    ],
    [
      "Wing / load path",
      "Aluminum spar + ribs + closed leading-edge D-box",
      "คง torsional stiffness; ห้ามแทนผิวรับแรงด้วยผ้าโดยไม่มี load path ใหม่"
    ],
    [
      "Aft wing bays",
      "Aircraft-grade fabric / feasibility candidate",
      "พิจารณาเฉพาะช่องที่ไม่พึ่ง skin shear หลังตรวจ torsion, rib spacing, pressure และ flutter"
    ],
    [
      "Aileron / rudder / elevator",
      "Aluminum skeleton + aircraft-grade fabric candidate",
      "ต้องกำหนด balance, tension, attachment, UV / coating และ flutter envelope"
    ],
    [
      "T-tail / attachment",
      "Aluminum fin / stabilizer / engineered fittings",
      "ตรวจ bending, torsion, fatigue, control authority และ deep stall"
    ],
    [
      "Cowling / fairings",
      "Formed aluminum / purchased non-structural parts",
      "ไม่มีงานผลิต carbon-composite structural shell ในแผนเริ่มต้น"
    ],
    [
      "Landing gear / engine mount",
      "Purchased or engineered metal assemblies",
      "อะลูมิเนียมไม่จำเป็นต้องใช้ทุกชิ้น · alloy และ process ต้องเหมาะกับหน้าที่"
    ]
  ],
  "phases": [
    [
      "01 / Reference capture",
      "บันทึกรุ่น เอกสาร วันที่ และเงื่อนไขของแต่ละค่า · ไม่วัดจากภาพ perspective เป็นขนาดจริง"
    ],
    [
      "02 / 2-seat layout",
      "CAD cabin / seat / baggage / engine / gear / T-tail; FN-01 ไม่ย่อ Panthera ทุกแกนด้วย scale factor เดียว"
    ],
    [
      "03 / Metal architecture",
      "เลือก alloy/temper จาก allowables; วาง spar, frames, D-box, joints และ access panels"
    ],
    [
      "04 / Fabric trials",
      "เลือก aircraft fabric system; ทำ coupon / attachment / tension / coating test ก่อนใช้จริง"
    ],
    [
      "05 / Structural demonstrator",
      "สร้าง jig และ test articles เพื่อเทียบ mass / stiffness / joint behaviour กับ analysis"
    ],
    [
      "06 / Integration & test",
      "ติดตั้งระบบและชั่ง CG; ground tests; flight tests เฉพาะหลังผ่าน review และอนุญาต"
    ]
  ],
  "procurement": [
    [
      "Aluminum / fasteners",
      "Material certificates, temper/traceability, sheet forming and corrosion process · RFQ pending"
    ],
    [
      "Fabric system",
      "Aircraft-grade fabric + compatible adhesive/coating/UV system; ordinary canvas excluded · RFQ pending"
    ],
    [
      "Engine / propeller",
      "Installed mass, mount, cooling, fuel and support; selection after power sizing · RFQ pending"
    ],
    [
      "Equipment / facilities",
      "CAD / stress capability, drill/deburr/rivet tooling, jigs, calibrated metrology, segregated coating area"
    ],
    [
      "Budget scope",
      "Separate engineering/NRE, tooling, test articles, prototype parts, purchased systems, labor, premises and contingency; supplier quotes required"
    ]
  ],
  "engineering_checks": [
    [
      "G0 / Requirements",
      "2 seats side-by-side · light-aircraft target <500 kg · mission and approval basis to agree"
    ],
    [
      "G1 / Geometry",
      "3D CAD / stations / airfoil / wing loading / tail volume / prop clearance / ergonomics"
    ],
    [
      "G2 / Mass & CG",
      "BOM mass + fasteners + fabric + coatings + paint + systems + contingency; verify loading cases"
    ],
    [
      "G3 / Structure",
      "Maneuver / gust / landing / engine / T-tail loads; joints, buckling, fatigue, corrosion"
    ],
    [
      "G4 / Aerodynamics",
      "Lift/drag polar and power required for new metal/fabric surface; stability, stall and cooling"
    ],
    [
      "G5 / Ground evidence",
      "Material coupons → joint / skin / fabric panels → wing/tail test articles → complete structure"
    ],
    [
      "G6 / Release",
      "Independent engineering review, ground/flight-test permissions and approved test plan before flight"
    ]
  ],
  "sources": [
    {
      "label": "Pipistrel Panthera / current product",
      "url": "https://www.pipistrel-aircraft.com/products/panthera/",
      "scope": "Manufacturer benchmark; checked 16 Oct 2026"
    },
    {
      "label": "Panthera 2025 brochure / dimensional reference",
      "url": "https://www.pipistrel-aircraft.com/wp-content/uploads/2023/04/Panthera_2025.pdf",
      "scope": "Provisional configuration; separate from current product headline figures"
    },
    {
      "label": "FAA / Airframe handbooks",
      "url": "https://www.faa.gov/regulations_policies/handbooks_manuals/aviation",
      "scope": "General metallic structure and aircraft-fabric background; not approval of the FN design"
    }
  ],
  "notes": [
    "FN-01 ใช้กรอบขนาด Panthera: span 10.86 m / length 8.07 m / height 2.19 m เป็นฐานภาพแนวคิดใหม่ แต่จัด cabin เป็น 2 ที่นั่งและโครงอะลูมิเนียม/ผ้าบางส่วน เป้า MTOW <500 kg ยังต้องพิสูจน์ ไม่ถ่ายโอนน้ำหนักหรือสมรรถนะเครื่อง 4 ที่นั่งมาเป็นผล FN",
    "นี่คือการศึกษาจากข้อมูลสาธารณะและภาพอ้างอิง ยังไม่มี manufacturer CAD, internal structure, laminate schedule หรือผลทดสอบของ FN การเปลี่ยนโครงสร้างเป็นโลหะ/ผ้าต้องออกแบบ load path ใหม่ และไม่ยืนยันว่าจะเบากว่า composite"
  ],
  "weight_rows": [
    [
      "Empty mass",
      "TBD / fresh aluminum + fabric BOM, systems and contingency"
    ],
    [
      "Occupants / baggage",
      "2 occupants; design masses and baggage allowance to freeze"
    ],
    [
      "Fuel mass",
      "Capacity × fuel density; capacity and density to specify"
    ],
    [
      "MTOW / CG",
      "Empty + occupants + baggage + fuel <500 kg target; check all loading cases"
    ]
  ],
  "component_groups": [
    {
      "id": "fuselage",
      "number": 1,
      "name": "Fuselage / โครงลำตัว",
      "construction": "Frames + stringers + riveted metal skin",
      "checks": "Cabin / wing / tail / gear load paths; buckling, fatigue, access and CG",
      "group": "airframe",
      "cell": 0,
      "image": "/static/fn01/components/fuselage-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/airframe-parts-board-v2.png",
      "viewport": "3.0 3.0 537.0 356.0",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "wings",
      "number": 2,
      "name": "Wings / โครงปีก",
      "construction": "Metal spar + ribs + closed leading-edge D-box",
      "checks": "Bending, torsion, gust loads; fabric aft bays only after load-path verification",
      "group": "airframe",
      "cell": 1,
      "image": "/static/fn01/components/wings-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/airframe-parts-board-v2.png",
      "viewport": "546.0 3.0 537.0 356.0",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "tail",
      "number": 3,
      "name": "T-tail / ชุดแพนหาง",
      "construction": "Aluminum fin and stabilizer; selected fabric control surfaces",
      "checks": "Elevator on top; attachment loads, flutter, deep stall, trim and balance",
      "group": "airframe",
      "cell": 2,
      "image": "/static/fn01/components/tail-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/airframe-parts-board-v2.png",
      "viewport": "3.0 365.0 537.0 356.0",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "canopy",
      "number": 4,
      "name": "Canopy / Doors / กระจก",
      "construction": "Purchased formed glazing with engineered frame",
      "checks": "Visibility, latch, egress, support and material compatibility",
      "group": "airframe",
      "cell": 3,
      "image": "/static/fn01/components/canopy-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/airframe-parts-board-v2.png",
      "viewport": "546.0 365.0 537.0 356.0",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "cowling",
      "number": 5,
      "name": "Cowling / ฝาครอบเครื่อง",
      "construction": "Formed aluminum removable panels",
      "checks": "Engine clearance, cooling inlet/outlet, vibration and fire-zone review",
      "group": "airframe",
      "cell": 4,
      "image": "/static/fn01/components/cowling-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/airframe-parts-board-v2.png",
      "viewport": "3.0 727.0 537.0 356.0",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "mount",
      "number": 6,
      "name": "Engine Mount / แท่นเครื่อง",
      "construction": "Engineered metal tube/fitting assembly",
      "checks": "Loads, vibration, firewall interface and installation envelope",
      "group": "airframe",
      "cell": 5,
      "image": "/static/fn01/components/mount-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/airframe-parts-board-v2.png",
      "viewport": "546.0 727.0 537.0 356.0",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "landing-gear",
      "number": 7,
      "name": "Landing Gear / ชุดขาล้อ",
      "construction": "Fixed tricycle baseline / metal assemblies",
      "checks": "Landing/drop loads, ground clearance, attachment and steering",
      "group": "airframe",
      "cell": 6,
      "image": "/static/fn01/components/landing-gear-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/airframe-parts-board-v2.png",
      "viewport": "3.0 1089.0 537.0 356.0",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "wingtips",
      "number": 8,
      "name": "Curved Wingtips / ปลายปีก",
      "construction": "Formed metal tip study",
      "checks": "Tip transition, total drag, stall progression and additional root bending",
      "group": "airframe",
      "cell": 7,
      "image": "/static/fn01/components/wingtips-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/airframe-parts-board-v2.png",
      "viewport": "546.0 1089.0 537.0 356.0",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "engine",
      "number": 9,
      "name": "Engine / เครื่องยนต์",
      "construction": "Generic light-aircraft powerplant placeholder",
      "checks": "Model, power, installed mass, fuel, cooling and prop compatibility pending",
      "group": "systems",
      "cell": 0,
      "image": "/static/fn01/components/engine-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/systems-parts-board-v2.png",
      "viewport": "3.0 3 537.0 341",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "propeller",
      "number": 10,
      "name": "Propeller / ใบพัด",
      "construction": "Supplier-selected propeller / not in-house structural composite work",
      "checks": "Match selected engine, rpm, diameter, clearance and vibration",
      "group": "systems",
      "cell": 1,
      "image": "/static/fn01/components/propeller-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/systems-parts-board-v2.png",
      "viewport": "546.0 3 537.0 341",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "avionics",
      "number": 11,
      "name": "Avionics / แผงเครื่องมือ",
      "construction": "Two-seat panel and purchased instruments",
      "checks": "Electrical load, visibility, interfaces, harness and installation",
      "group": "systems",
      "cell": 2,
      "image": "/static/fn01/components/avionics-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/systems-parts-board-v2.png",
      "viewport": "3.0 350 537.0 323",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "wheels-brakes",
      "number": 12,
      "name": "Wheels & Brakes / ล้อและเบรก",
      "construction": "Purchased assemblies / compatibility study",
      "checks": "Mass, tire/axle/brake ratings, heat and mounting interface",
      "group": "systems",
      "cell": 3,
      "image": "/static/fn01/components/wheels-brakes-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/systems-parts-board-v2.png",
      "viewport": "546.0 350 537.0 323",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "fairings",
      "number": 13,
      "name": "Wheel Fairings / แฟริ่งล้อ",
      "construction": "Formed panels or purchased non-structural fairings",
      "checks": "Tire clearance, bracket fatigue, drag and access",
      "group": "systems",
      "cell": 4,
      "image": "/static/fn01/components/fairings-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/systems-parts-board-v2.png",
      "viewport": "3.0 679 537.0 333",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "hardware",
      "number": 14,
      "name": "Hardware / อุปกรณ์ยึด",
      "construction": "Traceable aircraft rivets, bolts and engineered fittings",
      "checks": "Joint allowables, shear/bearing, corrosion, access and inspection",
      "group": "systems",
      "cell": 5,
      "image": "/static/fn01/components/hardware-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/systems-parts-board-v2.png",
      "viewport": "546.0 679 537.0 333",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "interior",
      "number": 15,
      "name": "Interior / เบาะและเข็มขัด",
      "construction": "Exactly two side-by-side seats / no rear row",
      "checks": "Occupant masses, seat restraint loads, ergonomics, baggage and CG",
      "group": "systems",
      "cell": 6,
      "image": "/static/fn01/components/interior-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/systems-parts-board-v2.png",
      "viewport": "3.0 1018 537.0 427",
      "board_width": 1086,
      "board_height": 1448
    },
    {
      "id": "systems",
      "number": 16,
      "name": "Fuel / Electrical / Cooling",
      "construction": "Separate systems and routing study",
      "checks": "Usable fuel, vent/drain/fire protection, wiring and cooling evidence",
      "group": "systems",
      "cell": 7,
      "image": "/static/fn01/components/systems-v2.svg",
      "status": "Proposed FN component / not manufacturer internal design",
      "dimensions": "Overall reference envelope only; component-specific dimensions, material gauge and joints TBD",
      "board": "/static/fn01/systems-parts-board-v2.png",
      "viewport": "546.0 1018 537.0 427",
      "board_width": 1086,
      "board_height": 1448
    }
  ],
  "exploded_image": "/static/fn01/exploded-v2.svg",
  "drawing_envelope": {
    "span_m": 10.86,
    "length_m": 8.07,
    "height_m": 2.19,
    "wing_area_m2": 11.2,
    "basis": "Panthera published envelope adopted for FN-01 concept",
    "status": "Concept drawing envelope / not structurally validated or CAD released",
    "seats": 2
  }
}