{
  "title": "Galena",
  "era": "Working form guided by an undated historical illustration, 1857–1872",
  "version": "1.1",
  "modelStatus": "Interpretive reconstruction; no original lines plan recovered",
  "detailLevel": "full",
  "units": "metres",
  "axes": {
    "up": "+Y",
    "bow": "-X",
    "starboard": "+Z"
  },
  "historicalDimensions": {
    "lengthFeet": 190,
    "beamFeet": 30,
    "depthOfHoldFeet": null,
    "beamInferred": false,
    "holdDepthUnknown": true,
    "dimensionsSourceQuality": "NOAA catalogue; conflicting secondary dimensions flagged in notes"
  },
  "geometryReference": {
    "hullBowX": -28.956000000000003,
    "hullSternX": 28.956000000000003,
    "deckY": 4.55,
    "waterlineY": 3.1,
    "waterlineIsInferred": true
  },
  "bounds": {
    "min": [
      -29.020691495852436,
      0.0050000000000000044,
      -4.657000000000001
    ],
    "max": [
      29.03145580840546,
      30.553512296887966,
      4.657000000000001
    ]
  },
  "triangleCount": 44838,
  "trianglesByGroup": {
    "hull": 12668,
    "bulwarks": 9620,
    "fittings": 2716,
    "deck": 7466,
    "propulsion": 208,
    "anchors": 636,
    "deckhouses": 4704,
    "pilothouse": 744,
    "support_arches": 1360,
    "cargo_ports": 288,
    "spars": 1132,
    "standing_rigging": 600,
    "running_rigging": 168,
    "machinery": 592,
    "skylights": 72,
    "ship_boat": 1816,
    "roof_fittings": 48
  },
  "drawCalls": 54,
  "mastCount": 1,
  "supportsSails": false,
  "visibilityNodes": {
    "arches": "support_arches"
  },
  "deployedSailCount": 0,
  "inferredFeatures": [
    "Underwater hull lines and draft",
    "Exact colors, fittings, hatch layout and rigging routes"
  ],
  "configurationCaveat": "NOAA gives 190 × 30 ft. An undated archive illustration guides the large support arch, one forward mast, aft funnel and small forward pilothouse. It is a stylized historical image, not a measured plan. The far-side arch, exact cabin layout, hull lines, paint and dimensions of fittings are inferred. North Point wreck attribution and location remain approximate.",
  "sources": [
    {
      "title": "NOAA Galena record",
      "url": "https://thunderbay.noaa.gov/shipwrecks/galena.html",
      "use": "Dimensions, propulsion, builder, dates and archive identifier"
    },
    {
      "title": "Galena historical illustration",
      "url": "https://commons.wikimedia.org/wiki/File:Galena_ship.png",
      "use": "Inspected ship-specific image: arch, foremast, aft funnel, low cabin, forward pilothouse and bent pipes"
    },
    {
      "title": "Great Lakes Maritime Collection record 2895529",
      "url": "https://greatlakeships.org/2895529/data?n=1",
      "use": "Shared archive identifier linking the reproduced image to NOAA record; original page inaccessible"
    },
    {
      "title": "Great Lakes Shipwreck Files: Galena 10148",
      "url": "https://greatlakesrex.wordpress.com/g/",
      "use": "Conflicting length, hold depth, date and fatality account; not adopted"
    }
  ],
  "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": [
    "Propeller steamer built by Luther Moses at Cleveland in 1857. [NOAA Galena record](https://thunderbay.noaa.gov/shipwrecks/galena.html)",
    "NOAA wreck dimensions 190×30 ft. [NOAA Galena record](https://thunderbay.noaa.gov/shipwrecks/galena.html)"
  ]
}