I found the rudder
on my ingrid to be hollow when she was hauled last fall. The rudder
was filled with water
through a small hole caused by a prop strike to it during sea trials.
has been drained and rudder has been drying out for 3 months.
Now, I'm planning on pouring urathane foam into the rudder in "lifts". The lifts should be shallow enough to help prevent damage to the rudder due to expansion. I'll drill a series of holes at 2' intervals to pour the foam.
I think I have this figured out for the most part. The boat yard debate going on is whether any weight needs to be added. If so, is it just need in the bottom of the rudder?
I don't believe it's necessary at all.
Any and all advice from builders or other knowlgeable individuals would be greatly appreciated.
I'm planning on using the U.S. Composites 8lb foam.