Production version of 1973 IOR One Ton Cup winner, ‘YDRA’. (1 ton was 27.5’, IOR MkIII)
Drawing shown here is of the racing version. (from Carter Offshore flyer - courtesy of Mike Davies)
More popular was another version with an extended wedge shaped coach roof and fitted out interior.
At least one other Carter One ton design was introduced and went into production several years later from an American builder.
(CARTER 36 OR TEXAS ONE TON?)