For those who don't already know, the 110 is sort of like a mini ULDB sled.
The first planing keel boat ( 20 years before the Flying 15) they are legitimately quick little beasts.
With a trapeze, they are fast upwind as well.
Also they are pointed at both ends which makes them irresistible.
For years the class has been wanting a kit.
I have wanted a kick ass 110 since I last sailed one when I was 15 and have very definite ideas.
So why wouldn't I design and build a CNC 110 kit?
I learned many years ago that I couldn't buy the boats I wanted so I had to build them.
The 110 does not have the modern "sport boat" styling ( asymmetrical, full battened sails and guys draped over lifelines like they are seasick) but in other ways they are firmly within the type.
I hope to document the process of building this new boat.
There are lots of choices, I will try to explain them as they come up.
This is also a record of things that aren't quite right in the kit cut. You never bat 1000. The only thing you can do is fix the screw ups one by one so the next kit will have fewer mistakes.
I met Meade Gougeon when I was 12 years old, and think that English wood racing dinghies from the 1960s and 70s are pure pussy, so even though I have built more than a few thousand fiberglass racing dinghies and maybe 100 exotic composite epoxy sandwich core dinghies,I chose to make this boat out of plywood. I am still pretty happy with the West System Koolaide. Occume plywood with a light veil of glass on both sides gets you a damn stiff boat with very little trouble. CNC cutting allows you to quickly and easily build fairly complex structures that would be onerous to make cutting parts out by hand. I have designed a few kits (Machete IC) using conventional 2d CAD, I wanted to see what using more advanced 3d modeling ( Rhino) made possible. In theory, we could build the entire hull inside the computer, explode it, and have accurate models of every part. We could then flatten them out nest them onto sheets of various thicknesses of plywood and reduce the whole build into 26 sheets of plywood.
As luck would have it, there is another CNC based effort in the PNW that is using a system developed by Turn Point Design. This is symilar but relies on PET foam cored panels instead of plywood. This looks very cool.
It is also necessary to build an assembly fixture which holds the pieces of the frame in position as they are assembled and glued together. In theory, you could build a 110 like you build a DN fuselage, using the untwisted vertical sides as the strong back which eliminates the need for building anything which isn't the boat. I tried this on the Machete, and found that it really isn't very satisfactory. You have to repeatedly check and realign the hull and you really waste a lot of time. In a jig you can set up once and rely on it. A common theme though out the design process is reliability. You always want to reduce the chance that something will turn out wrong, or crooked or somehow in the wrong place.