Milton Thrasher: Wing keel for Irwin 23 modified
The plywood wing keel prototype has been moved back 8" to improve balance.
The 1" x 6" board fits up into
the centerboard well where a bolt through it at the centerboard pivot point and a bolt at the stern end into the
lead keel makes it firmly attached but removable for
Posted by: Milton Thrasher - website: http://www.angelfire.com/fl4/mft