Am in the process of designing a catamaran
and would like to keep the draft
as small as possible while still maintaining good rudder
control. No appendages on the hulls, like a wharram
or hobie 16. My concern is with the rudders. I'd like them not protrude deeper than the hulls, meaning about 9 or 10". From what I gather, low aspect ratio rudders are not very efficient, for the same reason that low aspect ratio sails
aren't. Then I get to thinking about maybe having 4 smaller rudders, but that sounds like too many moving parts
. I could have breakaway rudders that are deeper, but that brings increased complexity which I hope to avoid.
Any ideas, suggestions, thoughts?