Definitions for "Boom Vang"
Keywords:  vang, mainsail, tackle, sail, mast
A system used to adjust downward tension in order to hold the boom down when sailing downwind.
a rope or wire tackle leading from the boom to the foot of the mast
a pulley system at the “intersection” of the mast and boom used to create and ease tension on the boom. The boom vang can help provide appropriate sail trim for different points of sail.