Wing Keel Rudder Mod

[Ken Juul]

The May 1999 Tech notes has a diagram of the differences between the standard and "new" rudders.  The dimensions are hard to read.  They are approximately:  length of trailing edge 46", width of tip (front to back) 14.5", trailing edge thickness 3/16".  The extension is 4.5-5" wide for the bottom third of it's length, tapering/fairing to a point at the top.  Rough diagram.

[Ron Hill]

Guys : If anyone is looking for the exact measurements -- call Catalina.  That's where I got that diagram and measurements from !! 
If you make the trailing edge add-on tapered to a 5" max,  and then carry that down to the bottom of the rudder, you'll have the new elliptical rudder !!  

[Stu Jackson]

Ron sent me this a while ago