Sailboat Daggerboard & Centerboard NACA Lift, Leeway Angle & Grounding Shear-Pin Solver

Deterministic Prandtl lifting-line finite-wing C_L_alpha = 2*pi*AR / (AR + 2) leeway equilibrium + grounding kinetic energy shear-pin sacrificial bolt sizing engine (.json, .dxf, .pdf) built for NACRA, Corsair Trimarans, Dragonfly, NACA Marine Foils — zero-upload ephemeral Wasm RAM execution.

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