One of the Lexicans tipped me to this, from the National Museum of Naval Aviation.
Douglas’ A3D (later A-3) Skywarrior was the largest plane ever operationally deployed aboard carriers. Earlier attempts by the Navy to field a nuclear capable bomber at sea were… marginal at best. Some P2V (later P-2) Neptunes were intended to be launched as nuclear bombers, but no attempt was made at providing a capability of recovering them aboard. The later North American AJ (later A-2) Savage was a hybrid propulsion bomber, with twin reciprocating engines, and a small jet engine embedded in the tail. It was not a terribly successful aircraft.
About the time the A3D started entering into squadron service in significant numbers, advances in nuclear weapons reduced their size to the p0int where smaller tactical aircraft, such as the AD (later A-1) Skyraider and the A4D (later A-4)* could carry nuclear weapons. The widespread adoption of in flight refueling also meant smaller strike aircraft could reach well into the heart of the Soviet Union after launching from the Eastern Mediterranean Sea.
The A3D, with its great size and payload capacity soon found itself adapted to roles beyond the nuclear strike mission. Variants would serve as tankers, electronic warfare platforms, reconnaissance jets and even as transport. A-3s did fly a handful of conventional strike missions during the Vietnam war, but rarely ventured into the contested skies above North Vietnam.
The last Navy A-3s finally retired in the early 1990s.