Hello Dave
You have many options available regarding the repair of the rubbing strip, here is my contribution:
1. Clamp and glue.
or 2. Cut out damaged section and replace with new wood using long scarf joints.
or 3. Cut both strip on sides of chainplate and remove the section, then glue the various bits back together on the remaining rubbing strip chamfering the ends at 45 degress. HM boats are set up this way, i.e. the rubbing strip stops either side of the chainplate.
or 4. Remove whole rubbing strip and replace with new wood.
I think the first option is the best and the easiest to do.
As Russell has already said, you need to get everything dry first.
You will need two "G" (or "F") clamps and two pieces of wood longer than the damaged area to act as clamping blocks. Also a third piece of wood to act as a clamping block, to push the (sprung out) strip horizontally back in line. I would use two long ratchet straps (or rope tightened by twisting with a wooden lath) right around the boat to apply the necessary pressure to pull the broken ends of the rubbing strip back into alignment, then use the two G clamps to clamp together in the vertical plane.
Do a "dry run" first to make sure everything fits before you apply any glue.
An epoxy adhesive is much stronger than the wood it is gluing, and the glued surface area is so large that you should not need any screws if you can manage to keep the wood clamped together until the glue has cured.
Make sure that you put some sort of barrier between the clamping blocks and the rubbing strip to prevent the clamping blocks becoming firmly glued to the work.
You will probably not be able to see the resultant repair when the job is finished, and the joint will be stronger than the wood it is joining.
BTW I am very impressed with how you have managed to embed the photos into your post.
