Over ground means "in relation to the earth", see also the term SOG.
Therefore, COG means the true direction free from the effects of sea currents.
COG
COG, Course Over Ground, indicates the direction of the boat's heading relative to the land.
COG, Course Over Ground, indicates the direction of the boat's heading relative to the land.
Over ground means "in relation to the earth", see also the term SOG.
Therefore, COG means the true direction free from the effects of sea currents.