J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Rudder CAD

gave the Vee Jay 505 rudder a quick look this morning ... the V keel template appears to have the same radius at the leading edge. photo shows the V template in position ... on the rudder. Whether we are looking for a similar lift foil for a keel as a rudder I haven't got a hint.

original part of rudder is ~15.5 in. leading to trailing edge.
mod is 19 in. leading edge to trailing edge
Leading edge is ~26 in. deep before taper.

doing it again I probably would bring it out to the V foil line and perhaps shorten the leading edge depth of the mod to 20 in.

but I am used to this rudder and it does make a difference ... but of course OD VIOLATION.

That's the nice thing about OD ... we sort of get to stay in a time warp where some things stay the same but other things move on.

If marine engineering was a science we wouldn't have to have AC boats.