Stephens had previously designed separate rudders on a number of increasingly large ocean racers of the 1960s, most notably Thomas Watson's state of the art Palawan III, before using it successfully on the Intrepid in 1967.
Prior to his work on the Intrepid in 1967, Stephens had designed separate rudders for several progressively larger ocean racers of the 1960s, most notably Thomas Watson's advanced Palawan III.