Hydrofoil leading edge shape tool
thingiverse
This is a tiny tool to make it easier sanding the leading edge of hydrofoils. I used this for my A-Class Catamarans main foils. It is modeled using NACA airfoil shape with similar proportions than an A-Class main foil. The point is that a better shaped leading edge reduces foil ventilation as seen here: https://youtu.be/69wVCygnTiY
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