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Rudder Normal Force - Class Formula

Rudder normal-force per typical classification-society rule - F_N = 132·A·v²·κ for full-spade rudders.

RudderForceClass
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Formula, assumptions, and limits

FN=132ARv2κF_N = 132 \cdot A_R \cdot v^2 \cdot \kappa
SymbolMeaningUnit
ARA_RRudder area
vvService speedm/s
κ\kappaProfile coefficient

Source: DNV Pt.3 Ch.14

In short

Rudder normal-force per typical classification-society rule - F_N = 132\u00b7A\u00b7v\u00b2\u00b7\u03ba for full-spade rudders.

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