They thus fly two topsails (and possibly two topgallant sails) per mast. "Nancy" was 67 tons burthen with two raked masts, square topsails and fore-and-aft mainsails. Traditional rigging may include square rigs and gaff rigs, usually with separate topmasts and topsails. Her normal sailing rig consists of a mainsail, foresail, two headsails, and no topsails. Gaff topsails, like gaff rigs in general, may still be seen at Tall Ships gatherings. Her six-sail battle configuration consisted of jibs, topsails, and driver. The gaff rig has been largely superseded by the Bermuda rig, which has no topsails. One of the easiest types to sail, but performs poorly to windward without gaff topsails. She was designed by William Steele, had a composite hull, and carried Cunningham's roller-reefing topsails. The sails are built using light canvas, while the topsails are linen cloth. The majority of large square-riggers today carry separate upper and lower topsails. As a result, the vessel lost topsails and staysails. The larger topsails were difficult and dangerous to handle in strong winds. Topsails were added by 1460, then a spritsail under a bowsprit. Topsails are never carried on gunter rigs.