Hi Classic30,
This is a problem and it took me some time to fix it. I solve it in different ways :
- through high pass filtering. I filter a lot the wind direction which by nature is relatively stable. Much less the wind angle and bearing which are very dynamic. The calibration of parameters is important.
- upwind the boat is steered to wind angle to keep the target apparent angle, about 32 degrees.
- the wind vane has little inertia so it really reflects well the wind angle. In fact the boat react very quickly and so it is constantly optimizing the angle when going upwind.
- In fact she reacts a bit the same as on a large boat when there is a significant swell. It is very surprising to see.
- when wind is light, the boat filters more the wind angle and the target wind angle increases.
- finally swell and boat movement is messes compass reading, so a lot of calibration is necessary and as for a real boat, a lot of testing !
Best,
Chris.