Plain english please!Edit
With the notable exception of sailing by the lee:
- A boat is on starboard tack if the wind is crossing her center line from starboard to port.
- A boat is on port tack if the wind is crossing her center line from port to starboard.
For a boat on a windward leg the maneuvering of the boat to turn through head to wind is also called a tack or perhaps more correctly changing tack. The boat need not be moving forward to change tack although that is the most common situation.