{
  "title": "Harvey Bissell",
  "era": "Photograph-guided late two-masted barge form",
  "version": "1.1",
  "modelStatus": "Interpretive reconstruction; no original lines plan recovered",
  "detailLevel": "full",
  "units": "metres",
  "axes": {
    "up": "+Y",
    "bow": "-X",
    "starboard": "+Z"
  },
  "historicalDimensions": {
    "lengthFeet": 162,
    "beamFeet": 33,
    "depthOfHoldFeet": null,
    "beamInferred": false,
    "holdDepthUnknown": true,
    "dimensionsSourceQuality": "Selected documentary baseline; see vessel research notes for length and beam conflicts"
  },
  "geometryReference": {
    "hullBowX": -24.6888,
    "hullSternX": 24.6888,
    "deckY": 4.2,
    "waterlineY": 3.15,
    "waterlineIsInferred": true
  },
  "bounds": {
    "min": [
      -28.41442229357627,
      0.0050000000000000044,
      -5.114200000000001
    ],
    "max": [
      24.7738,
      29.203925501674526,
      5.114200000000001
    ]
  },
  "triangleCount": 54220,
  "trianglesByGroup": {
    "hull": 12950,
    "bulwarks": 9490,
    "fittings": 2892,
    "deck": 8300,
    "propulsion": 52,
    "anchors": 636,
    "deckhouses": 1152,
    "skylights": 64,
    "forecastle": 108,
    "spars": 2296,
    "standing_rigging": 2316,
    "running_rigging": 336,
    "furled_canvas": 2160,
    "cargo_hatches": 120,
    "hatch_covers": 288,
    "deck_cargo": 8832,
    "steering": 412,
    "ship_boat": 1816
  },
  "drawCalls": 58,
  "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": "Depicts the photographed two-masted towing barge, after earlier barkentine and three-masted schooner phases. The two masts and lumber load follow historical images. The exact conversion date, cargo quantity, deck fittings, paint and underwater hull are uncertain.",
  "sources": [
    {
      "title": "NOAA vessel record",
      "url": "https://thunderbay.noaa.gov/shipwrecks/harvey_bissell.html",
      "use": "Vessel identity, scale, history and surviving evidence"
    },
    {
      "title": "NOAA condition report: schooner barge comparison",
      "url": "https://sanctuaries.noaa.gov/science/condition/tbnms/history.html",
      "use": "Career conversion and historical lumber-load image"
    },
    {
      "title": "NOAA-hosted Bissell broadside",
      "url": "https://thunderbay.noaa.gov/media/img/20201204-harvy-bissell-2-1000.jpg",
      "use": "Inspected two-masted working form"
    }
  ],
  "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": [
    "NOAA records a 162×33 ft wooden vessel built at Toledo in 1866. [NOAA vessel record](https://thunderbay.noaa.gov/shipwrecks/harvey_bissell.html)",
    "Its career included barkentine, three-mast schooner and later two-mast towing-barge forms. [NOAA vessel record](https://thunderbay.noaa.gov/shipwrecks/harvey_bissell.html)"
  ]
}