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22 ft proa based on Kiribati style canoes. assymetric hull

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Views: 305

Comment by paul anderson on October 2, 2013 at 5:12am

Fantastic,I'm sure she hauls ass.

Comment by Mick on October 2, 2013 at 6:28am

Thanks Paul! He sure does(proas are considered masculin in Micronesia) I already started drawing up a bigger version about 31 foot

Comment by Omar M. Rashash on October 3, 2013 at 10:18am

I contemplated the idea of rigging an Ama (outrigger) and two Lakas (crossbeams) to a single Hitia 17 hull.  Haven't worked out the mast/sailing/rigging issues yet.  If i were to do it from scratch, I'd omit everything having to do with the front crossbeam, omit the tiller, make the rudder a fixed part of the skeg, and go to a more open, self bailing cockpit.

Comment by Mick on October 3, 2013 at 3:14pm

I contemplated on that too. I would go for a setup similar to a spritrigged Melanesia with the mast on the fore beam and the shrouds on the second. One aft beam and you have a tacking outrigger canoe. I would keep the rudder as it is.  Also it is important if you're tacking to make the ama bouyant enough so it doesn't dig in when it's on the leeward side. I don't have this problem because it's a proa

Comment by Omar M. Rashash on October 4, 2013 at 7:32am

Well, in that case I'd use the starboard hull as is.  Would need to make a pair of crossbeams long enough to go from the Ama to stick out the other side of the hull by about 3-4 feet.  I'd mount a safety Ama on the short beams to help keep her upright.   Mount a smaller, as in 2-1/2" tapered mast, on the forward crossbeam just inboard of the lashing, with a crab claw sail.  I'd lash the half of the tramp to a cross piece between the two crossbeams.  There would be no changes to he existing hull and a minimal investment in additional parts.  For proof of concept, I might just use a windsurfer mast and a tarp for the sail.  I need to think about what I'd make the Amas from.


Depending on how well that worked, I'd consider making a purpose built hull.  Probably stretch the Hitia 17 by 3-4 feet.

Comment by Mick on October 4, 2013 at 1:15pm

My ama is a pvc tube with foam/glassfibre nosecones. filled with two component pu foam. That's fine for a proa but for a tacking outrigger canoe I think the easiest way after carving one from a solid log of something extremely light like red cedar, would be to carve one up from foam with a ply webbing. Like described in Gary Dierking's book. Also you need some form of maststep on your beam to stop the mast from sliding. Two little blocks would do


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