Ice Design Load (IACS UR I1)
Order-of-magnitude ice bow load per IACS Polar Class UR I1, using the class-factor and hull-form dependencies.
Crushing factor CFc
4.50 -
Design ice impact force (bow)
30,611kN
Formula, assumptions, and limits
Simplified form. IACS UR I1 full calculation includes bow-angle dependencies, frame-direction angles, and local vs global pressure/load areas. Numbers here give order of magnitude; detailed ice-strengthening scantling needs the full rule.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Polar-class crushing factor | - | IACS UR I1 Table | |
| Ship displacement | kt | hydrostatic |