{
  "club": "Dun Laoghaire Combined Clubs",
  "event": "Regattas 2026",
  "documents": [
    {
      "output": "source/2026_DL_Club_Regattas_SIs_Amendment_1_08Jun26_Copy.md",
      "source": "source/2026_DL_Club_Regattas_SIs_Amendment_1_08Jun26_Copy.pdf",
      "url": "https://s3.amazonaws.com/rrs.prod/dm7ag8qpwgr0m3mv15pklx7ugfad",
      "columns": "2@2-3",
      "title": "Dun Laoghaire Combined Clubs regattas 2026 sailing instructions, with amendment 1",
      "why": "Addendum A carries Course Card A itself; A1.6 gives every mark to port, A2.1 the marks, A3.1 the start line the courses begin at and A3.2 the finish. SI 8.1 says the start line positions are in the addendums."
    },
    {
      "output": "source/DL-Club-Regattas-2026-Sailing-Instructions.md",
      "source": "source/DL-Club-Regattas-2026-Sailing-Instructions.pdf",
      "url": "https://www.dmyc.ie/wp-content/uploads/2026/05/DL-Club-Regattas-2026-Sailing-Instructions.pdf",
      "columns": "2@2-3",
      "title": "Dun Laoghaire Combined Clubs regattas 2026 sailing instructions, final draft",
      "why": "The DMYC’s copy of the same instructions, kept so the check that the two agree on everything the card is made from can be read as well as run."
    }
  ],
  "artifacts": [
    {
      "output": "marks.json",
      "tool": "extract_dbsc_marks",
      "source": "../../dbsc/summer-2026/source/DBSC_Marks_Bearings_Distances_2026_v1.pdf",
      "url": "https://dbsc.ie/wp-content/uploads/2026/04/DBSC_Marks_Bearings_Distances_2026_v1.pdf",
      "supplement": {
        "source": "../../dbsc/summer-2026/source/machine-readable/DBSC_Marks_2026.csv",
        "url": "https://dbsc.ie/wp-content/uploads/2026/04/DBSC_MarksCourses_2026.zip",
        "citation": "DBSC Marks 2026, machine-readable list (DBSC_Marks_2026.csv), which the club says is not an official document",
        "ids": [
          "2",
          "3",
          "Z"
        ]
      },
      "meta": {
        "club": "DBSC",
        "name": "Racing marks 2026, as the Combined Clubs regatta SI Addendum A reproduces them",
        "source": "https://dbsc.ie/wp-content/uploads/2026/04/DBSC_Marks_Bearings_Distances_2026_v1.pdf",
        "notes": [
          {
            "title": "Positions",
            "text": "Mark positions may vary slightly. All figures are approximate."
          }
        ]
      }
    },
    {
      "output": "course-card-a.json",
      "tool": "extract_dlcc_card",
      "source": "source/2026_DL_Club_Regattas_SIs_Amendment_1_08Jun26_Copy.pdf",
      "url": "https://s3.amazonaws.com/rrs.prod/dm7ag8qpwgr0m3mv15pklx7ugfad",
      "templates": "dlcc-regattas-2026",
      "overrides": "overrides.json",
      "meta": {
        "club": "Dun Laoghaire Combined Clubs",
        "name": "Regattas 2026 Course Card A, cruisers",
        "source": "https://s3.amazonaws.com/rrs.prod/dm7ag8qpwgr0m3mv15pklx7ugfad",
        "marks": "marks.json"
      },
      "notesSource": "source/2026_DL_Club_Regattas_SIs_Amendment_1_08Jun26_Copy.pdf",
      "notesSections": [
        "A1",
        "A2",
        "A3"
      ],
      "startLine": {
        "source": "source/2026_DL_Club_Regattas_SIs_Amendment_1_08Jun26_Copy.pdf",
        "after": "A3.",
        "clauses": [
          "3.1"
        ],
        "columns": "2@2-3",
        "meta": {
          "id": "SL",
          "name": "Start line",
          "source": "Dun Laoghaire Combined Clubs regattas 2026 sailing instructions, Addendum A 3.1",
          "ends": [
            {
              "end": "starboard",
              "name": "Main mast or a staff displaying an orange flag on the race committee vessel",
              "placement": "Laid on the day",
              "source": "Dun Laoghaire Combined Clubs regattas 2026 sailing instructions 10.3"
            },
            {
              "end": "port",
              "name": "Course side of the port-end starting mark",
              "placement": "Laid on the day",
              "source": "Dun Laoghaire Combined Clubs regattas 2026 sailing instructions 10.3"
            }
          ]
        },
        "why": "Addendum A 3.1 says where the line is and SI 10.3 what forms it, for every course area: the committee vessel at the starboard end and the starting mark at the port end."
      }
    }
  ],
  "checks": {
    "tool": "check_dlcc",
    "items": [
      {
        "check": "same-addendum",
        "pdf": "source/2026_DL_Club_Regattas_SIs_Amendment_1_08Jun26_Copy.pdf",
        "other": "source/DL-Club-Regattas-2026-Sailing-Instructions.pdf",
        "url": "https://www.dmyc.ie/wp-content/uploads/2026/05/DL-Club-Regattas-2026-Sailing-Instructions.pdf"
      },
      {
        "check": "marks-table",
        "marks": "marks.json",
        "pdf": "../../dbsc/summer-2026/source/DBSC_Marks_Bearings_Distances_2026_v1.pdf"
      }
    ]
  },
  "map": {
    "background": "map/background.png",
    "marks": "marks.json",
    "layers": [
      "osm",
      "openseamap"
    ],
    "zoom": 14,
    "paddingMinutes": 0.6
  },
  "variation": {
    "date": "2026-06-20",
    "why": "Mid-series: the regattas are sailed from 6 June to 4 July 2026. Card pages work out the magnetic variation for this date at the middle of the marks from the World Magnetic Model; the variation changes by about a tenth of a degree a year here, so any day of the series gives the same figure."
  }
}