(1966 - 1973) An aqua Dolphin partly jumping against an orange sun. He Dolphin's head is near the center of the logo.
(1974 - 1989) The dolphin's body was centered on the sunburst.
(1989 - 1996) The colors are darkened and the helmet made bolder.
(1997 - Present) The most substantial revisions took place in 1997. Navy was introduced
as a trim color. The logo was reworked to make the dolphin appear
proportionally larger and more three-dimensional in effect. The
hashmarks around the perimeters of the logo's sunburst were removed