HomeCalculatorsPolar Class - Selection Guide

Polar Class - Selection Guide

Polar Class recommendation from route, season, and ice-concentration profile - PC1 to PC7 selector for project feasibility.

Polar ClassSelectionPolar Code
Recommended Polar Class
PC5 / PC6
Formula, assumptions, and limits

IACS UR I & Polar Code Part I-A: PC 1–3 → icebreaker, PC 4–6 → ice-strengthened merchant, PC 7 → light ice. Higher PC → thicker hull, more power, higher build cost.

Symbol legend

SymbolMeaningUnitSource
Polar Code A/B/C - MSC.385(94)
IACS UR I polar class - IACS UR I