Okay James, with regard to the reverse mounting of the bolts, you are quite right. I sacrificed indeed maybe 10-20 degrees of steerage range on my homebuilt cat.


If I understand you correctly, you seek support for your rebuilt on the interior sides of the hull. In fact you estimate that you have 1/2 in.or more working distance there.
In my proposal I searched for this working space a place on the outside of the hull which could give you a larger area.

Nevertheless we both do realise that the solution has to deal with the shifting-force when the new transom is charged with pulling-force (ripping off).

It isn't clear to me if you are planning to laminate inside the hull against the inner sidewalls too.
Do you have enough "flesh" overthere, especially because you have to make a "fillet" (I don't know the english) in the corners in order to laminate up against the innerwalls?????

If my understanding of this is correct, then I hesitate.