Due to overwhelming demand,we are presenting the next series of photos to show how Ebb created the OB Well Plug.
Step #1, As described elsewhere, two temporary frp sheets were glued to the bottom of the hole delineating the crease that runs between the rudder and the transom. Then the plug shape was molded in with 2 layers of xmat on the sides, more on the bottom to allow for possible fairing. White strips are carpet tape with peeler left on. Plug was glued to the temporary sheets which were then ground off.