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Yes Brian this is the sensible way to go. Thanks for summing it up. Go to Brians blog and see the result Duo 480 Jigsaw Build NZ http://duo480.blogspot.fr/ http://duo480.blogspot.fr/ Duo 480 Jigsaw

The boat was painted ?from the beginning. Epoxy shrink over time (years). There was no UV on the epoxy before it cracked, Remember to paint the top horizontal surfaces with a very whitish or light

First; - epoxy 1 coat, virtually as a sanding sealer as per Bernd's reccomendation, sand. - glass cloth applied with straight epoxy, then: - 1 or 2 filler coats with small amount micro balloons or

Thanks Philip, These are the layers I think I'm going to use: Plywood Epoxy Epoxy Fiberglass Cloth Wetted out with 10% Silica Fiberglass Cloth Wetted out with 10% Silica Primer Primer Primer Paint

Esteban,?did you cover the hulls with glass or cloth?? I covered my hull with three layers of epoxy and two of epoxy flowcote which is basically epoxy with aluminium oxide flakes. This was done with

Hi Tomaz As long as it is an organic tar. So pine or beech will be fine. Mix 50% Epoxy with 50% Tar. Use the mixing ratio of your normal Epoxy hardener ratio! Silica, use to stop running only, so

Only short, the anti vortex panels can not work on a multi chine hull as I explained some days ago in a letter here at the forum. So to make it clear again no a-vortex panels for the DUO 1000, 1001

And a delta daggerboard is also still on my mind. Running aground without damage would be so comfortable..

Yes, I would consider that as well. It looks like the DUO 1001 does that.

I would also consider a single centerboard from the bridgedeck!

Hi Bernd Now better weather is about to come and it is perfect time to prepare a boat. Could you explain exactly -recipe- about under water use Epoxy/Tar mixture with fused silica ? Tar is known as

A tacking Harryproa, that is an interesting idea. I'm the originator of the Tri-harryproa The idea is if you have a trimaran that doesn't have enough accommodation you substitute an accommodation ama

I hope other forum members can help you here. On our own boats boats we used not one of these systems. The in my view money machines for the producers. After the last coat of Epoxy we use DD lack. DD

I'm getting close to actually doing this for the first hull of my 660, left to my own devices this is the plan: With hull upside down primer with three coats of this. Pettit Protect High Build Epoxy

Oh, OK. I understand now. Thank you. R/ Bill

hi Eric Using foam sandwich might be easier and cheaper in my area there is also this ply problem I ended building an boat out of regula 4mm birch plywood (not Marine Grade) on 3 rd year boat is still

Hi Bill Anti vortex panels can only work on sharp chine (V, sharpie and trapezoidal) hulls. The DUO 1000 has multi chine hulls. Please read my article on A-vortex panels.

Hello, In reading my study plans I see that you have designed in centerboards. I really like the idea of the anti-vortex panels that some of your boats have. Would those not work on the DUO1000?

Hi Eric It is up to you but the differences are big for such a small boat instead of 27 kg the hull weights with 6mm plywood 33 kg and an ama instead of 15 kg 20 kg. so the total weight would be then

Hi Bernd: I am curious, how much would it affect weight and performance if I built my entire tiny tri out of 6mm plywood? 4mm is very difficult to find in my area, whereas 6mm is more readily