Re: Fiberglass Sheathing a 1962 Carvel Hull
How is the tiller connected to the rudder shaft? The reason I ask is that I experienced the same situation years ago when I had my trimaran.
In my case it turned out that the tiller fitting was held to the shaft by a pair of stainless pinch bolts that had stretched and let go, there was no keyway there. It was hard to see.
I realise that it is unlikely that you will have the same arrangement, but thought it worth a mention just in case.
There is nothing quite as permanent as a good temporary repair.