Glossary

Glossary of Sailing Terms

SOGSpeed Over Ground
The actual speed of the boat relative to the ground, factoring in currents and other influences.
COGCourse Over Ground
The actual direction the boat is moving over the ground, considering the combined effects of wind, current, and steering.
Heading
The direction the bow of the boat is pointing, measured in degrees relative to true or magnetic north.
TWATrue Wind Angle
The angle between the boat's heading and the true wind direction, measured clockwise from the bow.
TWSTrue Wind Speed
The actual speed of the wind, independent of the boat's motion.
TWDTrue Wind Direction
The direction the wind is coming from, measured relative to true north.
Speed
The velocity of the boat as it moves through the water, measured relative to the water's surface.

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