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7/8 months? So for us normal boatbuilding people, maybe 15 months. Not bad for such cool design. Once again, Dominico, I am super impressed not only by the quality of your work but also your speed.

Bernd if I had to build a new Duo 900 I would finish it in 7/8 months finished. The pandemic broke out during the construction of the Duo900, plus it was a problem to receive the pipes to complete the

Doesn’t that make the wall thickness 5mm……?

Okay thank you all, I wouldn’t have even considered 5mm to be the answer but that makes sense to me now.?

Of course it is 5 mm Bernd

Actually the wall thickness is 5mm not 10. ?Sent from TypeApp ?

As the outer diameter includes not only one wall but also the second wall in the opposit position, I would think 5 mm thickness.

Ho so 100/90 =10mm but have 2 side so it s not 5mm side wall?? That the way i understand it Envoyé depuis mon appareil

You are right. The first number is the outside diameter? (100/90) second number is the inside diameter Resulting in a wall thickness of 10 mm. Cheers Bernd

Hi Domenico Thank you for the photos. Looks very good, as usual. Do you have any idea how long it took to build the boat? Any idea will be helpful. I know it was only stop work in between building

Hi Patrick photos on the steps to go down the hulls. They ran out of wiring and I put the stairs back. I preferred to make them removable for the passage or control of the electrical cables. you never

Hello Bernd the Duo 900 the construction has come to an end, I'm waiting for the sailmaker who brings me the mainsail and the jib to assemble it before launching into the sea. Ciao link

Hey forum, I have a couple of questions for you. When a plan describes an aluminum tube as 100/90 or 90/80 does that mean the thickness of the tube wall is 10mm? Second question is how do you attach

Thanks Domenico! The steps look good. My steps are not as many and you can’t remove them. Good job. Cheers Patrick

Hi Patrick, the mainsail will be full batten The photo of the steps I only have this photo because they have now been removed to pass the cables of the electrical system. After that it will be put

Hi Ron Watch it. Drawing 17 is to scale, meaning 1 :1. The sort of sketch is a JPG file and not to scale. The wooden "eye" is only an example. You can also use a bull's eye on each side. The angle is

Thank you, Bernd. That helps. Now I understand where the bungee cord goes. ?Figure 17 ? says "The drawing is to scale. Print it out" What size paper is it being printed to in order to get "full

Hi Rod The rudder automatic is very simple. You can fasten the bungee cord in many ways. Example sketch attached. The elasticity of the bungee cords differs from type to type. You have to test it. If

Thank you Brend! Сб, 8 апр. 2023 г. в 17:35, Bernd Kohler <ikarus342000@...>:

I will provide a proper update in a few days. I decided to go with Dominic's approach. Thank you, Dominic, your photos were very helpful. ?This second attempt has been successful, enabling me to use