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Hatch Cover Design Pressure (IACS UR S21A)

Design pressure head on weather-deck hatch covers by position along the hull.

StructuralIACS S21AHatch
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Formula, assumptions, and limits

pPos1=2.6 t/m2,pPos2=1.9 t/m2p_\text{Pos1} = 2.6 \text{ t/m}^2, \quad p_\text{Pos2} = 1.9 \text{ t/m}^2
SymbolMeaningUnit
Position1/2Position 1/2Hatch location along hull
ppDesign head pressurekN/m²

Source: IACS UR S21A - Hatch Cover Loads

In short

Design pressure head on weather-deck hatch covers by position along the hull.

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