Douglas A3D/A-3 Skywarrior

The A3D Skywarrior originated from a U.S. Navy requirement in 1947 for an attack bomber with strategic (read it nuclear) strike capability.  The prototype first flew in 1953 and production deliver in 1956.

An inter-service agreement in 1962 redesignated the Skywarrior as the A-3.  The

A-3 was little used as a strike aircraft but performed many secondary roles such as reconnaissance, electronic warfare and in-flight tanker.

The U.S. Air Force version of the Skywarrior was the B-66 Destroyer.