{
  "title": "William Peter Thew",
  "era": "Photographed lumber-carrying career 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": 132,
    "beamFeet": 24,
    "depthOfHoldFeet": 8,
    "beamInferred": false,
    "holdDepthUnknown": false,
    "dimensionsSourceQuality": "Selected documentary baseline; see vessel research notes for length and beam conflicts"
  },
  "geometryReference": {
    "hullBowX": -20.1168,
    "hullSternX": 20.1168,
    "deckY": 3.6,
    "waterlineY": 2.5,
    "waterlineIsInferred": true
  },
  "bounds": {
    "min": [
      -20.185121608554773,
      0.0050000000000000044,
      -3.742600000000001
    ],
    "max": [
      20.194302126411177,
      27.60298177124238,
      3.742600000000001
    ]
  },
  "triangleCount": 49626,
  "trianglesByGroup": {
    "hull": 12668,
    "bulwarks": 9308,
    "fittings": 2844,
    "deck": 6010,
    "propulsion": 208,
    "anchors": 636,
    "deckhouses": 3576,
    "pilothouse": 36,
    "steering": 412,
    "machinery": 392,
    "standing_rigging": 2280,
    "spars": 1928,
    "cargo_hatches": 120,
    "hatch_covers": 240,
    "deck_cargo": 6912,
    "ship_boat": 1816,
    "ventilators": 240
  },
  "drawCalls": 55,
  "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 two masts, raised forward wheelhouse, aft house and single funnel. The visible lumber load is a career display; NOAA says the ship was empty when lost. Photo date, hull lines, exact stowage and small fittings remain uncertain.",
  "sources": [
    {
      "title": "NOAA vessel record",
      "url": "https://thunderbay.noaa.gov/shipwrecks/w_p_thew.html",
      "use": "Identity, scale, career and surviving remains"
    },
    {
      "title": "Historical W.P. Thew photograph",
      "url": "https://commons.wikimedia.org/wiki/File:W.P._Thew.png",
      "use": "Inspected two masts, forward elevated wheelhouse, aft house, one funnel and deck lumber. Image date not established."
    },
    {
      "title": "David Swayze, Great Lakes Shipwreck Files, T",
      "url": "https://greatlakesrex.wordpress.com/t/",
      "use": "Compilation gives 133 × 24 × 8 ft versus NOAA’s 132 ft length. The 8 ft hold depth is a secondary-source value; it is not a modeled draft."
    }
  ],
  "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 steam barge built at Lorain in 1884. [NOAA vessel record](https://thunderbay.noaa.gov/shipwrecks/w_p_thew.html)",
    "NOAA catalogue dimensions 132×24 ft. [NOAA vessel record](https://thunderbay.noaa.gov/shipwrecks/w_p_thew.html)"
  ]
}