At this resolution, you can't see "XP3Y-1" on the tail. I believe this was the tail modification that caused the rudder to drag in the water during a take-off with a heavy load.
Photo: 1053771 (1961-Apr)
Caption: XP3Y-1 commanded by K.McGinnis set 3433 mile record on non-stop flight from Panama to Alameda, 1935-Oct.
(Photo courtesy of the Naval Historical Center, US Navy)