A fore-and-aft rig is a sailing vessel rigged mainly with sails set along the line of the keel, rather than perpendicular to it as on a square rigged vessel.

What does the term fore and aft mean?

adverb. Definition of fore and aft (Entry 2 of 2) 1 : lengthwise of a ship : from stem to stern. 2 : in, at, or toward both the bow and stern. 3 : in or at the front and back or the beginning and end.

What is the fore and aft centerline?

Centerline or centreline: an imaginary, central line drawn from the bow to the stern. Fore or forward: at or toward the front of a ship or further ahead of a location (opposite of "aft") Inboard: attached inside the ship.