Tag Archives: airfoils

6. Lay out the leading edge radius. The actual radius is a 90 degree segment of a circle drawn tanged to #0, bisected by the chord line. Its radius is 1.58% of the chord line length (c).

How to Loft Airfoil Sections

by Captain James R. Watson

When a designer chooses a foil section for a particular design, that section is often not produced to a close tolerance. I sailed on a boat that was noted for its erratic steering: the problem boiled down to an asymmetrical rudder. Optimization of the airfoil section translates into measurable performance and handling benefits. Continue reading