rudder foil selection

[daiquiri]

How come we are replying to a 6 yrs old thread?

[DCockey]

Very good question. Perhaps alex_sailor would respond.

[alex_sailor]

Now that leaves the question to 0015 or 0012 for the foil and given that, what should the aspect ratio be? 4:1 5:1 or 3:1? Trailing edge ellipitical or straight? Tip (bottom) rounded or flat?

[DCockey]

Originally Posted by alex_sailor

Now that leaves the question to 0015 or 0012 for the foil and given that, what should the aspect ratio be? 4:1 5:1 or 3:1? Trailing edge ellipitical or straight? Tip (bottom) rounded or flat?

Someone asked the same question and received some good advice and references in another thread. Foil Design 1970's Keel Boat