Articles

Samwise part 2

 New Designs  Proas

There and back again, again.

I fleshed out a few scale drawings of Samwise last week. In keeping with the minimalist theme, I’m doing the minimum of calculations. As you can see, proportions have altered a bit - but form follows function. The goal was to make the hull sides from straight ripped ply - 2’ wide - easy as pie. The straight ply goal meant the crossbeams buried in the hulls had to go, so now they’re lashed or bolted to the…

Samwise sailplan

24 January 2008     0 comments.

Testing the crab claw sail

 Reports  Rigs  Research

Nicholas Schneider sent in some results of his crab claw rig experiments. Thanks Nic!

These are qualitative studies of slender foils and leading edge vortices for sailing craft.  The results of these experiments, suffering from improvised input and variable conditions were good enough to inspire further work but produced more questions than answers.

Description of rigs in drawings:

  • A. Original Sunfish rig, large camber, high…
  • 21 January 2008     0 comments.