Rudders continue to be my main concern on the harrys. I am enamored of the asymmetrical setup that Todd has demonstrated on his proa daysailer, but I am also concerned about the instability issues that theory seems to predict on the rudders (from Tom Speer and others).
My question is what effect it would have to cant the rudder a small amount, while keeping the axis of rotation vertical. Does this effect the stability at all (plus or minus)? How would it effect the lift? I don't seem to be able to come up with a thought experiment that would give me a clue about what effect, if any, this would have. Does anyone know something that would help predict this?
- Gardner
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