Hi Kinmel,I've seen your Tamar, it's a fantastic boat (or built). With more space here at home, it may have guided me to build a large Tamar too.
The slipway with the Lego-like (or is it Lego?) carrier is a great idea, and now I know that it's just metal on the boat side. I recently have built a small pontoon with neodym magnets on a hinge and smaller (and less strong) magnets in fenders on my boats. Having a strong magnet in the keel end of the Tyne too, would cause a 'grabbing' of the stern just when it comes close to the pontoon.
I'm building the Douglas slipway which isn't the easiest one, your carrier won't work 1:1 but I'm thinking about solutions with that idea. But first I have to build the slipway....
As I'm also building the boathouse I 'dream' of having a person with a hammer standing near the stern and while turning the person towards the keel end, the boat will be released from the hook (of course including the real sound).
Now I have to think about the keel end with hook and enough metal.
Do you have a control for the winch motor (ESC?) or is it just on/off? I thought of a gear motor with 5-20 turns per minute, direct driven winch trommel, but with 6.6V (LiFePO).Best regards,Joerg