{
  "cases": [
    {
      "chart": "pump",
      "inputs": {
        "expansion": 0.713,
        "limit": 2000,
        "section": 12,
        "section_basis": "diameter"
      },
      "chart_ordinates": {
        "expansion": 1194.2122554824946,
        "limit": 1140.0,
        "pivot": 1167.2020786359067,
        "section": 1155.0,
        "length": 1160.5651372157006
      },
      "approximate_length_ft": 22.909671115509042,
      "graphical_read_band_ft": [
        21.52207056465858,
        24.38673495860808
      ],
      "qualification": "approximate recovered-scale graphical result; \u00b114 ordinate-pixel envelope, not engineering confidence or source numerical formula"
    },
    {
      "chart": "pump",
      "inputs": {
        "expansion": 0.506,
        "limit": 2000,
        "section": 12,
        "section_basis": "diameter"
      },
      "chart_ordinates": {
        "expansion": 1309.009013768986,
        "limit": 1140.0,
        "pivot": 1224.8036378823142,
        "section": 1155.0,
        "length": 1186.8361186287582
      },
      "approximate_length_ft": 20.37513202952443,
      "graphical_read_band_ft": [
        19.13499010579698,
        21.68878558078847
      ],
      "qualification": "approximate recovered-scale graphical result; \u00b114 ordinate-pixel envelope, not engineering confidence or source numerical formula"
    },
    {
      "chart": "vessel",
      "inputs": {
        "expansion": 0.179,
        "limit": 14000,
        "section": 30,
        "section_basis": "diameter"
      },
      "chart_ordinates": {
        "expansion": 1692.966304351633,
        "limit": 814.0,
        "pivot": 1468.9160699090598,
        "section": 904.0,
        "length": 1286.456388148472
      },
      "approximate_length_ft": 17.14396395194952,
      "graphical_read_band_ft": [
        16.103543056347945,
        18.251604566604016
      ],
      "qualification": "approximate recovered-scale graphical result; \u00b114 ordinate-pixel envelope, not engineering confidence or source numerical formula"
    },
    {
      "chart": "vessel",
      "inputs": {
        "expansion": 0.5,
        "limit": 14000,
        "section": 30,
        "section_basis": "diameter"
      },
      "chart_ordinates": {
        "expansion": 1464.0,
        "limit": 814.0,
        "pivot": 1298.313725490196,
        "section": 904.0,
        "length": 1170.956121946797
      },
      "approximate_length_ft": 28.81363028150851,
      "graphical_read_band_ft": [
        27.052412789181307,
        30.698986963927453
      ],
      "qualification": "approximate recovered-scale graphical result; \u00b114 ordinate-pixel envelope, not engineering confidence or source numerical formula"
    }
  ],
  "source_examples": "Pump/vessel input pairs are historical exemplars; output is independently reconstructed graphical read, not recertified source23/21/18ft conclusions. Last vessel.5in is a declared hypothetical sensitivity case."
}