Data Logged by Vakaros Devices
Race Area
The main reason no single race was the same was the fact that the wind was clocking left all the time. This changes how the wind runs along the shore, and also creates a big difference in race geometry, making it from skewed to the left to becoming skewed to the right. Hitting the shore soon became less important since you could not stick for long into that nice bend from the first race that allowed you to sail very long in the favored lift. Now you were forced to tack and this would happen too soon and under the layline to the top mark. This is why higher lanes to the left became better since they could take you almost to the layline. It was always bad to sail long starboards in the middle of the lake.
The ability to see that things are no longer the same, even on pretty straightforward lake Garda, is essential. At least it makes you think that it is not 100% sure that the race will be as the one before and you need to be more alert.
Start
There was almost 70m of port-advantaged bias. 7 degrees of difference, but very long line.
This was putting GBR4968 in the lead even with being 20m under the start line.
1st Upwind
Having port-end bias was making the decision harder. The windward position would take you further to the left, but you had to pay the price of a biased line. Since ITA 3 was 10m closer to the start line than GBR 4968 and still on the pin-end side, it didn’t suffer the bias disadvantage that much. By keeping the upwind angle pretty high, it managed to create a long starboard tack before going to the top mark.
The disaster of getting out in the lake early is shown by GER 4701 tacking once more to the left and gaining quite a lot on the boats that went to the starboard layline.
The wind bend was still there and the wind at the top was so much left that any starboard sailing was hoing hard against the shift. The app suggests the wind at the beginning of the upwind at 212 and at the top at 192
1st downwind
On the downwind, GBR 4944 rounded the right-hand mark, went to the layline, and gained. So it became a much more open race on the downwind than it was before. There was a completely different wind on its path, resulting in sailing much longer on starboard, while the rest of the fleet had longer port tack.
In the polar dots, you can clearly see that the pink dots had different wind.
2nd upwind
Things became more open now with GBR 4968 again going a bit right before tacking and actually gaining. Still, going in the middle of the lake was no good with GBR 4944 winning at first with the lift, but having a horrible angle to come back.
2nd downwind
Huge gain by GBR 4968, taking the right-hand mark and going significantly lower after the gybe than anyone else. Ita 3 was losing some meters to AUS4900 by doing not the best 2 gybes at the beginning.
