''Constellation'' is an American

12-metre class The 12 Metre class is a rating class for racing sailboats that are designed to the International rule. It enables fair competition between boats that rate in the class whilst retaining the freedom to experiment with the details of their designs. ...

racing yacht that successfully defended the

1964 America's Cup The 1964 America's Cup was held in September 1964 at Newport, Rhode Island. The US defender, ''Constellation'', skippered by Bob Bavier, defeated the British challenger, ''Sovereign'', skippered by Peter Scott, in a four-race sweep. ''Constel ...

. On 20 March 1964, ''Constellation'' completed a 4–0 victory over ''

Sovereign ''Sovereign'' is a title which can be applied to the highest leader in various categories. The word is borrowed from Old French , which is ultimately derived from the Latin , meaning 'above'. The roles of a sovereign vary from monarch, ruler or ...

'' in the 1964 America's Cup.

References

{{Authority control 12-metre class yachts America's Cup defenders 1960s sailing yachts Sailboat type designs by Olin Stephens Sailing yachts built in the United States 1964 America's Cup