1 An elevated rod, fixed at both ends and parallel with the deck of a sailing vessel, to which the sheets of sails can be led. Lateral movement of the sheet is made by means of a traveller which can slide from side to side of the horse according to the trim of the sail. Before yachts were Bermudan rigged with foresails that overlapped the mainsail, a horse was fitted mainly for use with foresails. In old-fashioned sailing dinghies, the mainsail sheet is sometimes led to a small horse fitted on the boat's counter or taffrail. See also flemish horse.