{
  "title": "Panther",
  "era": "Photographed Toledo career form; date uncertain",
  "version": "1.1",
  "modelStatus": "Interpretive reconstruction; no original lines plan recovered",
  "detailLevel": "full",
  "units": "metres",
  "axes": {
    "up": "+Y",
    "bow": "-X",
    "starboard": "+Z"
  },
  "historicalDimensions": {
    "lengthFeet": 237,
    "beamFeet": 36,
    "depthOfHoldFeet": 19,
    "beamInferred": false,
    "holdDepthUnknown": false,
    "dimensionsSourceQuality": "Selected documentary baseline; see vessel research notes for length and beam conflicts"
  },
  "geometryReference": {
    "hullBowX": -36.1188,
    "hullSternX": 36.1188,
    "deckY": 6.5,
    "waterlineY": 4.6,
    "waterlineIsInferred": true
  },
  "bounds": {
    "min": [
      -36.182422897515806,
      0.0050000000000000044,
      -5.5714000000000015
    ],
    "max": [
      36.412800000000004,
      33.50411001612763,
      5.5714000000000015
    ]
  },
  "triangleCount": 52494,
  "trianglesByGroup": {
    "hull": 12668,
    "bulwarks": 9860,
    "fittings": 3012,
    "deck": 9056,
    "propulsion": 206,
    "anchors": 636,
    "deckhouses": 7320,
    "pilothouse": 36,
    "steering": 412,
    "pilothouse_roof": 6,
    "stern_gallery": 1282,
    "machinery": 392,
    "standing_rigging": 2280,
    "spars": 2168,
    "cargo_hatches": 180,
    "hatch_covers": 612,
    "ventilators": 480,
    "cargo_ports": 72,
    "ship_boat": 1816
  },
  "drawCalls": 51,
  "mastCount": 2,
  "supportsSails": false,
  "visibilityNodes": {
    "hatches": "hatch_covers"
  },
  "deployedSailCount": 0,
  "inferredFeatures": [
    "Underwater hull lines and draft",
    "Exact colors, fittings, hatch layout and rigging routes"
  ],
  "configurationCaveat": "The historical photograph guides the rounded stern gallery, single funnel and two masts. The dock’s tall loading gantries are not ship fittings. Exact hull lines, hatches, colors and final-voyage configuration are interpreted; the photograph is not a measured plan.",
  "sources": [
    {
      "title": "3DShipwrecks Panther field documentation",
      "url": "https://3dshipwrecks.org/shipwreck-panther/",
      "use": "Documentary dimensions and surviving steam machinery. Its separately licensed CC BY-ND archaeological model is not reused in this reconstruction."
    },
    {
      "title": "Historical Panther photograph",
      "url": "https://commons.wikimedia.org/wiki/File:Panther_ship.jpg",
      "use": "Inspected stern-quarter view with PANTHER / TOLEDO lettering. Upper works guide the model; background dock gantries are excluded."
    },
    {
      "title": "Whitefish Point Underwater Preserve",
      "url": "https://www.michiganpreserves.org/whitefish-point-underwater-preserve/",
      "use": "Regional wreck documentation and Panther listing; no new positional claim."
    }
  ],
  "revisedDate": "2026-09-08",
  "revisionNote": "Added sourced documentary features and repaired metadata and research-note formatting; this collection cleanup is not a new full historical or geometry audit.",
  "documentedFeatures": [
    "Wooden bulk freighter US150497, built in 1890, dimensions 237×36×19 ft. [3DShipwrecks Panther field documentation](https://3dshipwrecks.org/shipwreck-panther/)",
    "Wreck evidence includes steam machinery, boiler cabin and deck equipment. [3DShipwrecks Panther field documentation](https://3dshipwrecks.org/shipwreck-panther/)"
  ]
}