The specific one I referenced is for an MC Scow. It would not fit the high aspect sail as on your cat. It would be very easy to make one. You could use rip-stop nylon which is available at most sewing centers if old sail material is not available. I would use closed cell foam. Check kids paddle boards available at Wal-Mart or such.

Terry

I have this problem with my strange multihull, it uses a biplane rig which means that rig is so short that it turtles straight away although it is fairly easy to right because of the very light rig and low centre of gravity.

I am considering having some inexpensive mast bobs made from the same material as swim noodles. Does anyone think their would be a demand for these?

Gareth
www.fourhulls.com

Another source of closed cell foam is those throwable seat cushions with two straps. The new ones I have encountered have a number of layers of thin (3/8" - 1/2") closed cell foam inside. Could be good for making a streamlined float for the sail top. I've seen something like that, probably commercially made, on a Flying Scott.