For "standing lug" rigs, the sail may remain on the same side of the mast on both the port and starboard tacks.
Square sails, on the other hand, are symmetrically mounted in front of the mast and are manually angled to catch the wind on opposite tacks.
[4] The rig was widely used in Europe from the seventeenth through the nineteenth centuries for small fishing vessels and other coasters because of their good performance to windward.
[7] There are several lug rigged boat classes of long history that have been raced more or less continuously for a century.
One example is the balance lug rigged Lymington Scow[8] that has become highly developed in almost continuous racing since 1905.