Hi, One of the reasons I liked Ganley's designs was his understanding of how to manipulate sheets
without having to have a ball roller. For example if you take a sheet say 1.5m square and run a weld around the perimeter with a hot stick welder you end up with a dish shape. so Ganley uses this effect to ensure that his side plates do not look like flat panels
. Secondly he designs with a 4-6" flat bar at the chine to soften the look. If this is combined with welding a 1/2" rod into the join and grinding back to the rod the effect is even better. Many amateur steel boat designs keep it simple and have very slab sides and sharp chines. The engineer
who build TinFin did this so successfully that many people didnot believe she was a steel build without using a sheet roller.
If you look at the Photos you provided carefully you will see the 4" flat welded in at the join of the topside plates and the bottom plates. This follows the natural flow of the boat and is not the water
line. I think you will see the colour change in the antifouling indicating where the water
was last time she was in.
will be a good airfoil shape with lead poured in the bottom. Ganley uses a 4" pipe as the leading edge and then 2 curved sheets
on each side with an airfoil shaped bottom cap. At the cord (widest part) it could be 6-10" wide. I had seen TinFin standing on its own keel (10" wide) when dried out alongside a wharf, and it didnt move as I walked around the deck
- then I paniced and rushed to brace it against the wharf!
Although it is supposedly ameteur built, the Ganley in your pics looks quite well made. Many good trades people built boats like that in their spare time because that was a skill they new. Cheers