The Vortex Sail, Variable Geometry Proa
by Malcolm Smith
Model 3
Model 3, launched 18th March 2001 on Fitzroy Falls Reservior, NSW, Australia, in very little wind.
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Model
3 Data
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| General | Main hull | Ama | Sail |
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Radio controlled, 2 channel. Total Displacement = 2.1kg Max hull spacing = 0.58m |
LWL = 1.5m WLB = 0.055m Disp = 1.5kg |
LWL = 0.9m WLB = 0.045m Disp = 0.6kg |
Main spar length = 2.3m Max depth (chord) = 0.5m Area (approx) = 0.75sqm |
Model 3 moving in about 3 knots of wind.
Model 3 on the water.