The curves at 7 and 10 knots indicate that going dead downwind is fastest with this tri for these wind velocities, which should not happen with a kite (45 sqm!). There is no typical kite lobe, the small max at 130 degrees for 20 knots would be compatible with a genova going downwind.
Looking at the curves; it looks like they do not go below 160!
Am I looking at the wrong polars?
