Lady T
The hull and a set of templates was given to me, I have found out that the templates in most cases are for guidence only. The hull is not one of the best mouldings I have had but with a bit of effort was knocked into shape.
In order that the rudder could be removed from the boat for repair I glued a piece of 3mm brass strip to the hull with Araldit and P38 filler, another piece of brass with a hole to take the rudder was laid on top and two 3.3mm holes drilled through both pieces, the brass on the hull was tapped 4mm and the piece with the hole for the rudder was drilled 4mm clear and countersunck.
By undoing the tiller arm and removing the two 4mm countersunk screws the rudder can be removed for repair.
The rudder was made with thin ply and P38 using the drawing to make a template of the shape.