如何保持船的左右平衡 Boats sail fastest when upright and flat. With the centreboard/daggerboard down resisting the sideways force created by the wind and sails, the boat will heel over. This can be a bit scary for beginners but it’s quite normal. The trick is to use your weight to balance the boat and stop her tipping too far – the further out you sit, the more effective your weight will be.