Evolution passed it's first hours sailing in saltwater with no problems.
Today the wind was up at 11am gusting just above 15 knots with about 20cm waves.
Perfect conditions for f5g b-rigg.
I was sailing evolution, with a b-rig borrowed from Fila, and a new slightly bigger rudder with a foil.
The boat is very fast and ready for racing in such conditions.
upwind is the usual; hit hullspeed, point high, work the waves.. |
downwind is a blast, the boat actually starts planing(yes it doubles its hull speed which is offically considered planning) |
in hectic conditions the foil keeps the stern planted, so far i haven't ever stalled the rudder or lost control downwind! |
picasa is shit software for editing photos.. |
main sail trimm for downwind is something to improove, the spreader is in the way of the sail, and i have no clue how to solve that problem, yet |
this is still happening when bearing away.. no big deal though. |
this is the new rudder, it is larger than standard, the foil attached is a hq3.5_10% thickness low renolds airfoil originally for model gliders |
previous experimets showed that an angle of attack of 1-2 deg is enough to keep the stern planted, so this 100x60mm foil is tilted 1.5deg downward. |
I am happy with the boat.
I will keep collecting speed and course measurments with the mobile phone inside the boat for the next week or so and come back with another post with a more numerical approach to the evolution of F5g sailing yachts.
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