Hi Sam,

we are getting closer to diving into foils, but not quite there yet!
I dont remember if sections was included in the plywood plans. What I know have been used as a safe section earlier is NACA0007 for daggers and NACA0012 for rudders. But there is a whole world of sections available and tuning that can be done. A very nice catsailor here sent me profile data for a modified NACA0013 to be used as both daggers and rudders. Then there are DAG sections which are used on quite a few catamaran foils..

Planform is also very important.



Not too much info is available but most in the know-how will answer direct questions on a good day.
We will start with proven sections and planforms and eventually make insets if we build experimental sections later on.

Place your bets and hold your breath