Epoxy work on seats sheer and Zip parts

The last post left off with my having cut out a piece of Meranti for the rear seat. This weekend, I laminated that onto the A/C exterior plywood... and did a little more epoxy work along the way.

1/4" Meranti top for the rear seat

Just as Id done with the front thwart, I coated both mating sides with epoxy (not thickened), and held them together with concrete blocks and weights while the epoxy cured. I had just enough epoxy left over to also add a 2nd layer to the Zip transom knee.

Laminating the Meranti onto the rear thwart. I used the extraneous epoxy to encapsulate the underside of the front thwart, as well as the transom knee for the Zip.

Regrettably, however... after the epoxy cured, there remained a small gap.

And a dust bunny got stuck in the epoxy on the Zip part.

All this didnt go perfectly according to plan. After the epoxy had cured, I found a gap between the two layers that would need to be filled. Also, some dust had gotten stuck in the epoxy on the Zip transom knee. I am trying for substantially better fit and finish on the Zip, so I sanded off the dust bunny & planned to encapsulate with a third layer.

Logistically, I thought it best to encapsulate the undersides of both seats next. This would be the 2nd coat for the forward thwart. I planned to tilt the rear thwart just a little so that epoxy would run into the gap and fill it. Since I havent trimmed the Meranti top yet, this should help the epoxy flow down into the gap. With the extraneous epoxy, I planned to encapsulate the underside of the sheers on the aft third of the boat, as well as the Zip part.

I ended up having more left over epoxy than expected. So after quickly cleaning them off, I also encapsulated part of the Zip stem and the forward face of frame 5-1/2.

More encapsulation; trying to fill the gap on the aft thwart. Here it is propped up slightly with a scrap of mahogany left over from the quarter knees.

Epoxy drying on the Zip stem & frame 5-1/2.

Current Status of Zip Parts
Part	Status
Stem & Breasthook Assembly	Most surfaces have 1 coat of epoxy
Frame 5-1/2	Forward face has 2 layers of epoxy. Other surfaces have 1 layer.
Frame 4	Side members cut, but have not been planed or notched for sheer.
Transom Knee	Coated with 3 layers of epoxy
Transom	Side frame members cut 1/4" oversized on outer side. Have not been planed.

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Ventilation Air Subduction other reasons why paddles dont work as well as they should

One of my readers recently informed me that what I called air subduction already has a name in the field of boating, namely, ventilation.  OK, there we go, the internet once again comes to the rescue and dissipates darkness by spreading light, at least in the linguistic domain.
The original post, the one just before this was all about ventilation diminishing the efficiency of paddles.  Ventilation, the sucking of air down the back side of a paddle blade is a problem but can be fixed by appropriate modification of ones paddling technique.
But the problem, fundamentally of getting the best bang for ones paddling buck is that there are too many variables to the deployment of a paddle by a human and inadequate means for measuring input energy vs. forward propulsion, the two key numbers one needs to measure efficiency.
I thought the problem was more or less insoluble.  But perhaps it isnt.  Quite coincidentally while launching my kayak to do some paddle testing, I fell into conversation with a painter who has been commissioned to do paintings of some of the Americas Cup boats. He told me that the boats have a person on board whose title is tactician and he advises the helmsman, the person who actually controls the boat.  The tactician sits at a computer which gets constant inputs from a variety of sensors and then suggests ways to wring additional performance out of the boat.
Thats all I know, but I suppose that as software and sensors get more sophisticated, some of that learning paid for by sailing syndicates might also be used to increase the efficiency of lowly kayak paddlers.  I havent done any serious research on the topic, but who knows, paddle design might be advanced from art to science, assuming of course that someone cares enough to spend the money to do the research.

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Back to work

With the successful launch of Perseverance last weekend at G9 behind me, its time to get back to work on getting the little boat finished.

Yesterday, I applied the 2nd coat of epoxy to the center third of the interior, as well as the remaining length of the sheers. This area is now ready to be painted.

This area between frames #1 and #2 is ready to be painted.

The aft third of the interior still needs a 2nd coat of epoxy.

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G9 minus five Perseverance is a work in progress

Five days until the G9 Boatbuilders Gathering.

I think I mentioned in an earlier post that, I never intended for this boat to have more than a "workboat" quality finish. In many ways, this project has been more about wanting a boat, and proving to myself that I could build one. A blue-ribbon, classic boat show museum piece, she was simply never meant to be. 

So, aside from trying to do the best job I can on a bright-finished transom and foredeck, Ive accepted the rest of the finish to be, well... rough around the edges.

Still, some of those epoxy runs on Frame #2 were just irritating me. So, today I decided to sand them off, (or at least down), since I was already going to paint another coat over it, anyway.

Epoxy runs sanded off of Frame #2.

The underside of the breasthook needs some more paint, too

Theres still a lot of work to be done, just to get the boat ready to travel... let alone for her to be finished. But, shes getting closer. Perseverance is a work in progress. 

I guess we all are, each in our own ways.

Ill close with a quote from James, one of Jesus brothers:

"Let perseverance finish its work, so that you may be mature and complete, not lacking anything."

James 1:4 NIV

Peace.

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