Physics Of Sailing Site

As a boat speeds up, the wind "shifts" toward the front of the boat.

If the sail creates a sideways force, why doesn’t the boat just slide sideways? The answer is the (or centerboard) under the boat. Physics of Sailing

This force doesn't just point forward; it mostly points sideways. 2. The Keel (Lateral Resistance) As a boat speeds up, the wind "shifts"