Cool outrigger
Posted by mattypatty88@reddit | sailing | View on Reddit | 8 comments
Currently on display at the museum I just got a job at. Didn’t see much info on it as I snapped these in passing during orientation.
pironiero@reddit
It's a proa
dodafdude@reddit
yup, both hulls seem designed to sail in either direction. But I'm not seeing how to jibe? the booms to sail on the other tack.
pironiero@reddit
The front most part of the sail moves from bow to bow
genericdude999@reddit
Aren't the amas on Polynesian sailing canoes solid wood? If so that explains why the akas are so long vs. a Hobie Tandem Island for instance. Less buoyancy means you need more leverage to keep the boat up.
dodafdude@reddit
How does leverage compensates for less buoyancy of the main hull? Rotation about the longitudinal axis is affected by force, but not placement of the pivot point - i.e. hull's depth and center of rotation.
genericdude999@reddit
The outrigger has X buoyancy. L = length of the aka (crossbar).
X times L = torque which the outrigger's buoyancy applies to resist heeling moment from the sail
If wind is from the opposite direction longer aka still helps, because the weight of the solid wood helps to resist opposite heeling moment
This is assuming no hiking out
dodafdude@reddit
As a long time windsurfer, I believe the single rope holding the mast up looks adjustable and may have allowed the mast to be slanted to windward in higher winds, like a windsurfer does and for the same reasons: faster, better control, effectively reefing as the breeze comes up without changing the sail.
johnatsea12@reddit
Moana used this to save her people!!!