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Rigid Wing Sail - Thrust Estimate

Along-ship thrust of a rigid wing sail given sail area, lift coefficient, relative wind and angle - Oceanbird/WindWings design principle.

SailWingWind
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Formula, assumptions, and limits

T=12ρaCLAV2sinβT = \tfrac{1}{2} \rho_a C_L A V^2 \sin \beta
SymbolMeaningUnit
AASail area
CLC_LLift coefficient
VVApparent wind speedm/s

Source: BAR Technologies - WindWings

In short

Along-ship thrust of a rigid wing sail given sail area, lift coefficient, relative wind and angle - Oceanbird/WindWings design principle.

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