To provide the Navy with an airborne early-warning aircraft capable of operating from aircraft carriers, Grumman began development of a variant of the S-2A Tracker in 1954. This was designated as the WF-2, based on the C-1A and subsequently redesignated E-1B, more often being known as "Willy Fudd" to its pilots and crewmen

Credits - Photo courtesy of National Museum of Naval Aviation