Heading up and barring off

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Heading up is a sailing manoeuvre during which the bow of a boat is turned toward the upwind, or windward direction without reaching the "irons" point of sail. Thus, the boom of the ship never swings from its initial side to the opposite one, showing that tacking has not occurred. Heading up can be accomplished by pushing the tiller towards the sail, so that the rudder conversely moves away from the sail.

Bareing off is the direct opposite of heading up. In bareing off, the bow of a boat is turned toward the downwind, or leeward direction without reaching the "run" point of sail. Like in heading up, the boom does not swing from one side of the boat to the other, which shows that a jibe has not occurred. Bareing off is directly opposite to heading up. To bare off, the tiller must be moved away from the sail, so that the rudder conversely moves toward the sail.