abeam On the beam, a relative bearing at right angles to the ship's keel. It is usually the last resort after all other mitigating actions have failed or become impossible, and destruction or loss of the ship is imminent, and is customarily followed by a command to "man the lifeboats" or life rafts. It is an order issued by the Master or a delegated person in command, and must be a verbal order. abandon ship An imperative to leave the vessel immediately, usually in the face of some imminent overwhelming danger. "two points abaft the beam, starboard side" would describe "an object lying 22.5 degrees toward the rear of the ship, as measured clockwise from a perpendicular line from the right side, center, of the ship, toward the horizon"). abaft the beam Farther aft than the beam: a relative bearing of greater than 90 degrees from the bow (e.g. See also back and fill abaft Toward the stern, relative to some object (e.g. It is used to heave to or to assist with tacking.
In a fore-and-aft-rigged vessel, a headsail is backed either by hauling it across with the weather sheet or by tacking without releasing the sheet.
This is a dangerous situation that risks serious damage. A sudden wind shift can cause a square-rigged vessel to be "caught aback" with all sails aback. The purpose may be to reduce speed (such as when a ship-of-the-line is keeping station with others), to heave to or to assist moving the ship's head through the eye of the wind when tacking. On a square-rigged ship, any of the square sails can be braced round to be aback. A aback A sail is aback when the wind fills it from the opposite side to the one normally used to move the vessel forward.
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