Bodywork:
images also on:
http://oc1design.blogspot.com/

I paddled it yesterday and it went well. Thus I decided to finish it and make a competitive boat out of it.
The bottom has some areas where things need to be cleaned up - that's what you see there.
It is has 5 or 6 different layers of epoxy/duratec on the hull. One layer was not good enough, I scraped it off again etc. Now it's 'for real' to make it a choice grade finish - the hull for now. The deck will have to wait.
Here is a pic of the boat today, drying. I reworked the bow too.

Ono - The hull is actually not patched very much. I made the mistake to push a part of the layup down with duct tape, that led to a depression and so forth.
The hull is pretty fair meanwhile, you can't see it because of the different layers of Duratec.
I agree - once I decide that I really want that boat I will probably build a copy with all the little changes done right from the beginning.
Rambo - it is a self made high aspect ratio rudder : 11 1/2 height, 3 inch chord and about 1/4 inch thick at ~ 25 % of the chord. I made it a little longer than the original design to have more effect in larger waves.
The deck is super low in the back ~ 2 inches throughout, up to 4 inches towards the bow.
This will hurt the performance in some conditions. My hope is that these moments are relatively rare and that I have an overall benefit with the design.
Upwind it is wave piercing as intended, very cool. Downwind it surprised me quite a bit. My thought is to keep the hull speed higher by reducing changes in trim, bow up/ bow down.
It seems to work. I feel that I am in a better position at take off more often.
General hull speed in the flat is between Hurrican and Zephyr. This is expected due to the increased the length of waterline by 1 foot and barely narrowed hull at waterline, maybe 1/4 plus inches. That is design, have not measured in the water.
The speed was without fairing the hull too much and with a waveblade ama that is just sitting there, but nowhere trimmed to perform.
With the hull and bow finished and the ama set up optimized, it should move inches closer to Hurricane flat water performance. That is compared with my Hurricane with the forward seat/foot well.
It might lag a bit because of the increased wet surface area.
However. because of more volume the boat should do a little better when the wind starts to blow.
The boat is roughly 6 inch shorter than a Huricane, has 20 feet waterline by design, that is one foot longer than the Hurricane; not measured in the water yet.
One thing is amazing: it is quite a new paddling experience, while not entirely different. For now I think that the boat has less ups and downs, less stop and go in the following sea, it is a more fluent experience.
Just paddled it for 2 hours so far. More impressions in different conditions.
glasscasepaddler have a look at:
http://oc1design.blogspot.com in the section 'building an OC 1' for some info about the boat/building.
I am tempted to leave the entire hull with that speckled appearance and make the top all white - the downside would be that you can't see any cracks.
One more thing that I really like: it is fiberglass, ~ 25 lbs, very solid and no dings whenever you hit something; very different compared to the brittle carbon.

Onno, thanks for the tip on the rudder. I think the original design was for 9 inch. I may just do that and cut it down again. :)

You' d rather cut the root than the tip ?
Doesn't the chord get a little too short after all ?
I am using a 'knife sharpening' stone block from Don Quijote as a sanding block for fairing .
It is quite heavy, the weight gives it a good glide while fairing. Fairing the hull is fun again. Can use it with or without sandpaper.