not anywhere near this phase of project but looking for feedback regarding stainless rudder design.. Im planning on cutting the glass off the barn door I have now and reusing the shaft and going with 3/8" stainless plate for the rudder. cutting the shaft into 2 halves, having the "3/8" slot machined into the shaft halves ( about 6") and then welding them on to the stainless plate..
What is the general rule of thumb for the measurements of the leading edge ( forward of the shaft) the radius of the corners, and the clearance of the rudder from the top of the rudder to the bottom of the boat and the bottom of the rudder to the skeg?

What is the general rule of thumb for the measurements of the leading edge ( forward of the shaft) the radius of the corners, and the clearance of the rudder from the top of the rudder to the bottom of the boat and the bottom of the rudder to the skeg?


