Constellation (USA 20)
Defender
ArchitectOlin Stephens
BuilderMinneford Yacht Yard
OwnerEric Ridder syndicate
ClubNew York Yacht Club
SkipperEric Ridder
Type12 MJI
Length HT20.83 m
Draft2.66 m
Displacement27.2 tons
Sail area170 m²
Sovereign (KA 12)
Challenger
ArchitectDavid Boyd
BuilderA. Robertson & son
OwnerJ. Anthony Boyden
ClubRoyal Yacht Squadron
SkipperGraham Mann
Type12 MJI
Length HT21.08 m
Draft2.71 m
Displacement28.4 tons
Sail area175 m²
The winner
In 1964, the Americans change the rules and require the challenger to be entirely built in their country of origin.
The loser
Sovereign did not have adequate sparring partners to train before the cup.