A Composite Calendar Islands Yawl

[Clinton B Chase]

The boat is a dayboat, 18'8" loa x 6'6" beam, balance lug-yawl rig (will also draw a sloop), and a foredeck and side deck. If anybody is interested in commenting on the lines or the idea of doing these in composite please feel free.

http://www.clintchaseboatbuilder.com/3.html

She will have a 1300lb displacement, which will mean some internal ballast, especially for a composite hull. She has a "plank" keel that allows her to sit on the beach, roll up/down beach, sit nice on a trailer. I'd probably lay in some kevlar into the bottom for this purpose as well as a core to stiffen the bottom longitudinally. The only issue I see is getting her out of the mold -- there is a fair bit of tumblehome, but I think it'd work. Maybe I should build a model and try it out. Any other thoughts/observations on doing this in composite using VIP, please give constructive comments. I am a wood boatbuilder, so this is a new foray for me, one I hope will be a little more lucrative. There is a big push in Maine to make this form of boatbuilding using CMT and VIP more common. I think the coamings and trim in varnish will give the boat a lot of warmth. I have a sail plan/concept drawing that I am preparing for the Wooden Boat Show and will have that on my website soon. I have not decided whether to do the deck ply or composite, probably just ply with a traditional canvas laminated on it. I like the idea of making it look traditional, to trick people into think it might be wood. Most people see the smooth finish on my boats and think it is 'glass anyway, might as well do it!

Thanks again.

Cheers,
Clint
www.clintchaseboatuilder.com

[keith66]

Nice looking boat. If building in GRP i would get rid of the tumblehome or build a split mould as it may cause problems demoulding.
I am curious as to the need for resin infusion, it sounds a bit overkill for what is a simple boat, i would build her conventional GRP but use a high proportion of stiched Biaxial cloth, that way you could save considerable resin as opposed to straight CSM lay up.
Interestingly her lines are rather similar to my latest project which was rebuilt as a pair sculling boat.