Catenary equation for anchor chain - horizontal tension at fairlead given chain weight per metre and water depth.
Formula
$$ a = H/w, \quad s = \sqrt{d(2a + d)} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $H$ | Horizontal tension at fairlead | kN | static analysis |
| $w$ | Chain weight per unit length in water | kN/m | chain cert |
| $d$ | Water depth to fairlead | m | echo sounder |
Sources
- OCIMF Mooring Equipment Guidelines 4.