Thread: Maori canoe sails

when they pulled up in a burnt out fj .......


for some reason that line comes to mind
lmfao

What I am dong is purely research into the nature of this particular sail, and doing various actual tests on models, I will soon be 86 and do not see myself as breasting the mighty Pacific Ocean waves. It is sort of a hobby and I have a small fan, run of a 12 volt battery and a turning arm where I set the different models on. Measurement is take of lift and drag, here are today's resuts.
Ketch, like a schooner, sail area 48 square inches, lift 5 drag 8 to nine
Flat back triangle like the one shown, 49 square inches lift 6 to seven drag 7 to 8
Curved back, slightly longer and not so wide 49 square inches lift 5 to 6, drag 8 to 9
Foam Wing, polystyrene wrapped in cello tape, frontal area 30, lift 8 to 9, drag 7 to 8.
I have a couple of examples of reef-able of the symmetrical foil, rather like a wrap around Junk sail.
The wing sail is on a rotating mast, under way there is just one control, a rotating device, for the 360 degree rotation, it will allow one to sail backward.
My current project is the design of a 1000 square ft sail with a working load of 4 lbs per square ft, and top load of 8 lbs a square ft. to get the best from this crab-claw sail it needs to be mounted at the pointy ends.