Patent ID: 7152543

Claim:
A vang assembly ( 10 ) for manipulating a sailboat boom ( 16 ) in which a supporting part is hingendly connectable to a lower portion of a sailboat mast ( 12 ) with a first end portion hingendly attachable to the lower portion of the mast ( 12 ) below the boom, and a second end portion hingendly attached to a traveller ( 26 ) sliding on a track ( 30 ) fixable to the boom ( 16 ) at a location spaced outwardly from the lower portion of the mast ( 12 ), characterized in that: said supporting part is a rigid unexstensible strut ( 20 ) and said traveller ( 26 ) fore and aft movements are controlled by adjustement means, said adjustment means to pull said traveller ( 26 ) forward toward the mast, so to force said boom ( 16 ) upwarly and to pull traveller ( 26 ) aftward opposite the mast, so to force said boom ( 16 ) downward.