Most of the rudder I design use the following method quite successfully:
- draw a leading edge curve with tip radius.
- draw a trailing edge curve.
- import my favorite NACA thickness section and scale appropriately for a tip and root chord.
- sweep two using the the leading and trailing edge curves as the guides and root and tip chords as those to be swept along the leading and trailing edges.
I’ve included a couple of simple screen shots for your perusal; it’s something I did in 5 minutes for the purposes of this response.
