Allowance for leeway 1

After taking into account the effects of the tidal set and drift, another factor has to be considered: the wind.
The effect of the wind is called Leeway.
When you experience strong wind from abeam, you will have to allow for leeway.
Leeway is the sideways movement of the boat caused by the wind.
To estimate your leeway angle, take a bearing on the wake of your boat using the hand bearing compass.
Compare this bearing with the reciprocal heading.
The difference is the leeway angle.