Anchor Chain - Horizontal Tension & Sag
Catenary equation for anchor chain - horizontal tension at fairlead given chain weight per metre and water depth.
Catenary parameter a
1,482.7m
Suspended chain length
388.3m
Tension at fairlead
827.0kN
Formula, assumptions, and limits
Assumes flat seabed, chain lying flat on bottom near anchor (tangential entry angle = 0). If bottom angle > 0 anchor dragging risk rises.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Horizontal tension at fairlead | kN | static analysis | |
| Chain weight per unit length in water | kN/m | chain cert | |
| Water depth to fairlead | m | echo sounder |