 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.After alterations by Britton Chance, Jr., she won the America's Cup again in 1970.Stephens also designed many off-shore and stock boats, including the Dark Harbor 20, which he designed in 1934.