HullEvolution

Hulls have grown to 10.2 meters. More lenght for less total hull surface compared to the initial high cabin design. Cockpit a bit too exposed without sprayhood, but that is easy to add. At least the cockpit is a bit more functional, easier to route sheets there and have cleats and winches at hand.

Hold the phone !

Ok, so there's nut much outside input into my project so I tend to have a narrow vision on things and go on a not so good direction, going astray from my first priorities, which are : fast build, low budget, good performance, minimum acommodations. I have realized that I'm currently designing a double monohull instead of a proper cat. Meaning : too much freeboard and height, high CG, high CoE, too comfy acommodations and too much standing height, lots of work to do on the interior etc.

Next I will try to put the money to good use - which is more lenght, less standing headroom, less fancy, less interior fitout, going proper gipsy. Since the core material is allready bought design will have to take into account that and maximise lenght based on a total SA. Keep close.

Fresh from the lofting table

Bigcat has gotten bigger. New hulls are sleeker, finer, allow for more payload, better tacking due to a bit more rocker, substantial volume in the bows and a bit less at the stern so it keeps the nose up with ease.

Back to the drawing board

After receiving all the core materials I decided to elongate hulls to 9.2 meters, add some rocker too, just a few cm, lower the cabin height and edit some other cosmetic aspects. New hulls will be ready soon. The longer platform is just a safety measure without enlarged rig. The rig choice is still blurred. What do you want from your driving engine when you're in the middle of nowhere ? Reliability, easy to repair, low consumption. I guess that describes a basic diesel engine, how to translate that into a boat rig ?

Given the size of the cat and the type of sailing intended I assume a low CoE would be highly desired, this boat's trim will be highly influenced by waves as it is short, unless a cat rig is way underpowered I think it will be unsafe surfing down waves with it.

The hull design is intended to be a true monocoque no edges or kinks, the intention is to have almost every surface with double curvature for added stiffness.