In a masthead rig, tensioning the permanent backstay will directly tension the forestay. The mast was held in place by a forestay, a backstay and two side stays. A boom vang and adjustable backstay were standard equipment. There is an adjustable backstay, a boom vang and a Cunningham. Further, the waves leveled upwind hooks, water backstay, and krambal backstay on bowsprit. There is a 4&colon;1 mechanical advantage boom vang, as well as an adjustable backstay. The genoa employs a headfoil (a headsail airfoil-shaped reinforcement) and a concealed backstay adjuster. The mast can be shaped by the shrouds and 4&colon;1 mechanical advantage backstay. Gaff rigged boats invariably have running backstays with no permanent backstay. A permanent backstay is attached to the top of the mast. During beating or reaching, the running backstay in windward side is in tension. There are some rigs for which running backstays may be used without a permanent backstay. Others have taken to flying the ensign from a backstay. The six are&colon; Clovis, Wishbone, Peace, Watchtower, Backstay, and Independence. The six are&colon; Adirondack, Clovis, Wishstone, Peace, Watchtower, Backstay, and Independence.