Tuning..tuning...tuning

Still tuning the hulls, the parametric model is such a nice thing to play with, instant feedback on the changes. It's amazing how much volume I was able to squeeze in the bows without having it look like a truck.

WIP on the new hulls

Added forward buoyancy, slightly less draft. New decks allow popping up a convertible accommodation as a double bed, this was missing from the design and I learned that having a double bed on a boat is really worth it. Decks even allow popping up a standard double tent.

Parametric modeling

I have developed a parametric model of the hull in Grasshopper, this allows me to do changes to the hull on the fly, saving significant modelling time. The hull will undergo some significant changes, but the basic concept remains. I decided the hull is just too fast, will add a bit of fat to it to lower the LWL/BWL ratio. Maybe a tiny bit of extra rocker just for some extra displacement, nice to be able to shove more stuff on the boat. Changes to the inside and partitioning - going even more spartan, aside from BH's, and bunk floor there will not be much inside, this reduces build time significantly. The deck layout will be revised to allow a double bunk to be used in each hull, in a smart fashion hopefully. Simplify , simplify, simplify...
Aside from the parametric model, I'm considering running some Michlet/Godzilla optimization, although i believe the hull lines are very fast still, nice thing about Michlet is that it can tell you the optimal hull separation for a given set of constraints.

Clean Up

I have been looking at the design for some time and most probably I'll ditch the center pod and single dagger setup. It just adds a lot of build time, complexity, weight, without much benefit except stiffening up the platform, but I can do that with a very simple spar running from the main beam to the rear beam. My main dissatisfaction with the single foil is that it needs to go deeper than twin foils. I will most probably go with Dutch style centerboards, hung outside the freeboard, as I still want them to kick up. Redundancy is also nice. Since the pod is out, I can focus on the hulls more and optimize interior space. Once the boat is built, I can add a fancy center pod at any time if I really want it, until then, it just delays the boat from hitting the water.

Design Considerations

I am getting closer and closer to start building, I have a small shop now which is not big enough for the hulls but I can start the rest of the platform, beams, BH's, foils, spars, hardware. Before getting my hands dirty I have to revise the platform design, there are few things I can't decide on yet: surface piercing rudders, dual vs single rudder, center pod design, hull partitioning. I will rework the design a bit and then continue with lamination schedule details.

Also...life is so unfair sometimes...

And BTW

The project is still alive. I am currently looking to rent a place where I can start building. I also have to find a way to move 400kg of foam and balsa core 1500km away. I have 4 axis running on my CNC machine, almost ready to cut stations. I'm also stocking up on UD, bi, triaxials and quads.