LMYC Tide and Anchor Scope Calculator
Enter the tide and depth values, then compare 3:1, 4:1, and 5:1 scope using the same calculation logic as the LMYC guidelines spreadsheet.
Inputs
Workbook logic used here
- Tide swing up = highest tide minus current tide.
- Tide swing down = current tide minus lowest tide.
- Water to seabed = anchor set depth plus keel offset.
- High water depth = water to seabed plus tide swing up.
- Rode required = scope ratio multiplied by high water depth.
Recommendation
Recommended scope: 4:1
Using the example values, 4:1 requires 108 ft of rode at high water.
Tide swing up3 ft
Tide swing down8.5 ft
High water depth27 ft
Low water depth15.5 ft
Low water clearance10.5 ft
Minimum depth on gauge12.5 ft
| Scope | Rode required | Status | Use case |
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