Anybody out there!

[growjd8888]

hey matt, its jeff.. I was wondering if you use single panel sails or if they're paneled? And I was wondering if you know where I can get information on building a airfoiled mast?

[matthias72]

If I understod, you mean how many parts my sails are built, and the answer is 4, with airfoil 8%.
To make a airfoiled mainmast I suggest to use two carbon tubes 10mm front and 4mm tail, light wood in the center as balsa, and 2 layers of carbon around all.
Final weight for two meters less than 170g is your goal.

Regards

Matth

[growjd8888]

awesome! thanks..

Any recommended websites for buying pultruded carbon rod?
much appreciated, jeff

[matthias72]

Jeff what is it?

[growjd8888]

Some work I've been doing. I have added a flange to my hull mold, and made my first deck mold which I will pull off the plug tomorrow.

[growjd8888]

Few more

[matthias72]

Jeff, you are working very as a professional boatmaker!
Good work really! Interesting the bulb shape, I'm curious of your next experiences in water using it.

Cheers
Matth

[growjd8888]

First pull with the Robinair 15600 1/2hp 6cfm pump....pressure is holding at 24Hg

[growjd8888]

I had to use a lot of sealant where my hose entered the bag...I think i will invest in the quick connect coupler with rubber gasket for the seal, was too much trouble using only a hose to enter bag.

[matthias72]

Interesting.
Could you tell us the final hull weight difference using the underpressure and without?