S/Y Linnea

This is pictures of Samson. A Norwegian ferro cement boat from Stavanger. It is a great boat of with a pig fence as stanchions and Ikea stuff in the cabin and you can sit in chairs on deck, while sailing insore in the beutiful Norwegian inshore waters. I sailed with it a couple of years ago and even though it has a SA/D ratio* of only 13 it has a lot of power in light winds. This is clearly seen in the pictures.

As can also bee seen in the pictures, the sails are baggy. They are also made of quite stretchy mateial, probably nylon.

So if you sew your junk sails with camber between the battens, the sail will give more power at the same wind speed.

So, camber is good? Yeah, probably. Will I use it? No. I try to not modify stuff before I try it out. The SA/D of Linnea is 17, so a flat sail will still have quite a lot of power. So, we will see if flat is ennough power. Otherwise I could resew the sail.

* SA/D=Sail Area vs Displacement ratio. Since the sail is two dimensional and the hull is three dimensional, the formula is SA/D^2/3. Otherwise the sail area and hull wouldn’t scale equally.