The 39 Sport has two patents on the nonstepped V-bottom design, and Jose Abella is hoping for at least one more. The unique element of the bottom design is a keel pad at the transom thats 12 inches wide and has what can best be described as a swallowtail shape at the forward end. This pad provides the transom lift to keep the stern from dropping when the boat runs through waves. Other unique aspects of the design are that the inner strakes actually curve downward at the bow to create a softer re-entry. Inner strakes extend to amidships, while the outer set runs full length. The chines are 5 inches wide and turned down 8 degrees for their length. Abella said the combination of the lift created by the pad and the turned-down chines creates a pocket of air beneath the aft section of the boat when its running at speeds above 35 mph.