{
  "title": "Charles H. Bradley",
  "era": "Photographed lumber-carrying career",
  "version": "1.1",
  "modelStatus": "Interpretive reconstruction; no original lines plan recovered",
  "detailLevel": "full",
  "units": "metres",
  "axes": {
    "up": "+Y",
    "bow": "-X",
    "starboard": "+Z"
  },
  "historicalDimensions": {
    "lengthFeet": 201,
    "beamFeet": 37,
    "depthOfHoldFeet": 13.6,
    "beamInferred": false,
    "holdDepthUnknown": false,
    "dimensionsSourceQuality": "Selected documentary baseline; see vessel research notes for length and beam conflicts"
  },
  "geometryReference": {
    "hullBowX": -30.6324,
    "hullSternX": 30.6324,
    "deckY": 4.7,
    "waterlineY": 3.5,
    "waterlineIsInferred": true
  },
  "bounds": {
    "min": [
      -30.701018777753397,
      0.0050000000000000044,
      -5.7238000000000016
    ],
    "max": [
      30.8529,
      29.704563225588593,
      5.7238000000000016
    ]
  },
  "triangleCount": 61398,
  "trianglesByGroup": {
    "hull": 12668,
    "bulwarks": 9668,
    "fittings": 2716,
    "deck": 9286,
    "propulsion": 206,
    "anchors": 636,
    "deckhouses": 9064,
    "pilothouse": 36,
    "steering": 412,
    "stern_gallery": 1282,
    "machinery": 392,
    "standing_rigging": 1176,
    "spars": 1084,
    "staffs": 48,
    "cargo_hatches": 180,
    "hatch_covers": 504,
    "deck_cargo": 9984,
    "ventilators": 240,
    "ship_boat": 1816
  },
  "drawCalls": 57,
  "mastCount": 2,
  "supportsSails": false,
  "visibilityNodes": {
    "cargo": "deck_cargo"
  },
  "deployedSailCount": 0,
  "inferredFeatures": [
    "Underwater hull lines and draft",
    "Exact colors, fittings, hatch layout and rigging routes"
  ],
  "configurationCaveat": "The photograph guides the raised forward pilothouse, single aft funnel, large foremast and light aft pole mast. Lumber load and hidden fittings are interpreted. Sources differ between 1890 and 1891 for construction; 1890 is selected. Exact hull lines and loaded draft are unknown.",
  "sources": [
    {
      "title": "Brendon Baillod — Charles H. Bradley history and historical photograph",
      "url": "https://www.baillod.com/shipwreck/keweenaw/bradley.html"
    },
    {
      "title": "Mansfield 1898 shipbuilder list, reproduced by Links to the Past — conflicting construction year",
      "url": "https://linkstothepast.com/marine/captainsW.php"
    }
  ],
  "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": [
    "The vessel history records a 201×37×13.6 ft wooden steamer built at West Bay City in 1890; another shipbuilding list gives 1891. [Brendon Baillod — Charles H. Bradley history and historical photograph](https://www.baillod.com/shipwreck/keweenaw/bradley.html)"
  ]
}