Re: Is external rudder a good idea?
Its bad for ocean and blue water cruises. My boat is like this. Basically you are relying on one or two thru bolts and a tiller for your boats steering and since it is above the water line hard wave action from the stern will slam it hard over repeatedly loosening this connection.
If your a coastal cruiser no problem- if you want to do long trips over blue water it is not a good set up.