More rudder nonsense

[bro t]

I'm a bit intrigued as to the actual shape and look of the foiled rudder.  The idasailor website photo is just a blur of white, hard to perceive.  That's interesting to know how much lower it is in density, that could come in handy in some of those bizarre situations that always seem to occur on the water!

[David Olson]

Shape (outline) is the same as a standard rudder, but the profile is the difference.  I would have to dig in my notes from when I sent Joel my rudder assembly for mock up, but it is a NACA foil matched to the normal speeds of operation (maybe 0012) .  NACA profiles have speed rangs they preform best in.  

Regards,

David