We designed and built a sailboat that could be easily adapted to different designs, we also took into account to built it using accessible materials and tools.
We hope that we can contribute to the Protei project by designing a platform that enables people to explore different sailboat designs and sailing principles.
We think that one of the major advantages of open-source is the ability of having a large audience during the development of the project. This is the reason why we are making an Instructable, we are hoping that you will help us in developing an autonomous oil-collecting sailing drone by contributing in one way or another.
Check out the Protei group here: http://www.instructables.com/group/protei/
We made a short video of the sailboat in action:
And the Protei video:
We hope that you will have as much joy reading this Instructable as we had building our Protei boats.
Step 1: Constructing the hull
PVC tube (540 mm in length, 70 mm diameter)
We use PVC piping since it is a very common material at most of the hardware shops in the world. The kind of PVC pipe that we are using is the kind that is used to collect rainwater. Another reason to use PVC has to do with the big collection of different couplings available. Using PVC glue it is very easy to experiment with different shapes and sizes.
To transform the PVC tube into a sleek and hydrodynamic sailboat hull we deform the tube by using a heating-gun (used to burn of paint and to isolate electric connections).
Apply the heat evenly on the tube and use some scrap wood to squeeze the soft PVC into such a shape so that the hull cuts through the water. Make sure that the hull is more or less symetrical to make sure that the ship goes in a straight line.
Watch out, the PVC it hot! Don't burn you're hands!
When the sides of tube are more or less touching use a hand-saw to make a diagonal cut (see pictures) to get a nice shape.
Use hot glue or even better; PVC-cement to fill any holes that the bow might have. Fill the other side of the tube with water to check for any leaks. We used hot-glue and got a small leak ;(. To finish the bow, sand any imperfections.
Use a PVC end cap for the stern (back of the boat), don't glue it yet!
Alternative: If you do not have a heat-gun just get a 45 degree coupling and an extra end-cap to make the bow of your sailing boat!