As with tacking, the type of sailing rig dictates the procedures and constraints for jibing. This allows them to sail upwind by tacking. A course generally involves tacking upwind to a 'windward' marker or buoy. Thus when a ship is tacking, it is moving both upwind and across the wind. Sailing to windward close-hauled and tacking is called 'beating'. To assist in tacking the beitass kept the luff taut. The type of sailing rig dictates the procedures and constraints on achieving a tacking maneuver. Strip-lining involves reinforcing tacking that has weakened. This is called tacking on or laying off. Tacking fastens objects to surfaces, such as bulletin boards or walls. Ted Turner attempted to force Mosbacher into a mistake by executing a grueling tacking duel. Equipping a horse is often referred to as tacking up. The junk rig is also self tacking. The next stage was tacking the quire. It is double-ended, since it needs to "shunt" to reverse direction when tacking.