Ro-Ro Lashing - Trailer Holddown
Number of lashing points required for a ro-ro trailer from mass, acceleration and per-lashing WLL - CSS Code Annex 4.
Lateral force
157kN
Lashings per side
5each
Formula, assumptions, and limits
1.5 safety factor. Short voyage / sheltered water: 0.3 g; ocean worst: 0.6 g. Combined chains + web straps per ILU requirements. Check ramp angle + lashing angle (≤ 45° from vertical).
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Working load limit of lashing | kN | lashing cert | |
| Transverse accel | g | CSS Code |