A Line Driver is a clean and efficient deck part whose purpose is to support mainsheet traveler adjustement. It works by connection to a traveler in a closed circuit and it does the job of moving the traveler port and starboard without a winch. The control system is connected to a traveler on a closed circuit and ensures efficient control and a clean layout for systems such as the mainsail sheet.
Line Drivers mount a self tailing sheave which operates in both direction with a textile gripping system that is efficient even if the circuit is not under strain and causes no wear in the rope. Antal realizes two types of Line Driver: manual and powered.