{
  "name": "IEA Wind 15-MW Reference Wind Turbine — Windpass browser model",
  "repository": "https://github.com/IEAWindSystems/IEA-15-240-RWT",
  "revision": "e4993d63de10f165389534461dd544006750fe60",
  "license": "Apache-2.0",
  "licenseUrl": "/windpass/LICENSE.txt",
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      "url": "https://github.com/IEAWindSystems/IEA-15-240-RWT/blob/e4993d63de10f165389534461dd544006750fe60/CAD/OpenSCAD/IEA-15-240-RWT_blade.stl.zip",
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      "url": "https://github.com/IEAWindSystems/IEA-15-240-RWT/blob/e4993d63de10f165389534461dd544006750fe60/CAD/OpenSCAD/IEA-15-240-RWT_tower.stl.zip",
      "localPath": "/windpass/source/IEA-15-240-RWT_tower.stl.zip"
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      "localPath": "/windpass/source/IEA-15-240-RWT_monopile.stl.zip"
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      "url": "https://github.com/IEAWindSystems/IEA-15-240-RWT/blob/e4993d63de10f165389534461dd544006750fe60/WT_Ontology/IEA-15-240-RWT.yaml",
      "localPath": "/windpass/source/IEA-15-240-RWT.yaml"
    },
    {
      "name": "CAD-README.md",
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      "upstreamPath": "CAD/README.md",
      "url": "https://github.com/IEAWindSystems/IEA-15-240-RWT/blob/e4993d63de10f165389534461dd544006750fe60/CAD/README.md",
      "localPath": "/windpass/source/CAD-README.md"
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      "url": "https://github.com/IEAWindSystems/IEA-15-240-RWT/blob/e4993d63de10f165389534461dd544006750fe60/CAD/OpenSCAD/IEA-15-240-RWT.scad.zip",
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      "url": "https://github.com/IEAWindSystems/IEA-15-240-RWT/blob/e4993d63de10f165389534461dd544006750fe60/CAD/OpenSCAD/IEA-15-240-RWT.scad.zip",
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      "archiveMember": "IEA-15-240-RWT.scad",
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      "modification": "Verbatim six-line excerpt; not a standalone renderable OpenSCAD program."
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  ],
  "conversionScript": "scripts/build-windpass-model.mjs",
  "units": "metres",
  "axes": "y-up, display base y=0; upwind rotor points +z",
  "description": "Official blade/tower exterior geometry, simplified hub/nacelle envelopes and ontology-based assembly. Demonstration model, not engineering validation.",
  "limitations": [
    "No drivetrain internals, engineering properties, submerged foundation, small fittings or structural analysis.",
    "Hub sphere and nacelle box use upstream OpenSCAD envelope dimensions; the bridging shaft is a visualization approximation.",
    "Pinned OpenSCAD tower spans 0–144.386 m whereas ontology tower reference axis begins at 15 m. Retained native STL height and base instead of distorting geometry to conceal this upstream mismatch.",
    "Hub y=150 m, shaft uptilt 6° and precone 4° come from the pinned ontology. This adds the ontology assembly transforms absent in the simple upstream OpenSCAD assembly.",
    "The 1% overall CAD-accuracy objective has not been demonstrated. Measured blade axis-span preservation is not a surface-distance or mechanical validation."
  ],
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      "triangles": 66724,
      "bladeTriangles": 21730,
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      "value": 3.97,
      "source": "IEA-15-240-RWT-assembly-envelope.scad.txt",
      "originalLine": 129
    },
    "nacelleSourceSizeMetres": {
      "value": [
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        5.614
      ],
      "source": "IEA-15-240-RWT-assembly-envelope.scad.txt",
      "originalLine": 131,
      "axisConversion": "source (x,y,z) to browser (y,z,x) size gives width=5.614, height=5.614, depth=12.0313"
    },
    "nacelleCenterHeightMetres": {
      "value": 147.193,
      "source": "IEA-15-240-RWT-assembly-envelope.scad.txt",
      "originalLine": 126
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    "hubHeightMetres": {
      "value": 150,
      "source": "IEA-15-240-RWT.yaml",
      "path": "assembly.hub_height"
    },
    "shaftRadiusMetres": {
      "value": 1.5,
      "source": "IEA-15-240-RWT.yaml",
      "path": "components.drivetrain.lss.diameter",
      "derivation": "3.0 metre outer diameter / 2"
    },
    "shaftLengthMetres": {
      "value": 6,
      "source": null,
      "classification": "visual approximation; not measured/extracted CAD"
    },
    "shaftPositionRelativeToNacelle": {
      "value": [
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      "source": null,
      "classification": "visual bridging approximation; not measured/extracted CAD"
    }
  }
}