It was a 1950s USN strategic bomber that devolved into recon, EA, fueling, etc, becoming the heaviest aircraft routinely deployed on carriers, weighing in @ 68k.
Looking it up, to save weight, it had no ejection seats, being expected to do its intended combat thing at high altitude.
So, the A3D was referred to as "All 3 Dead".
“So, the A3D was referred to as “All 3 Dead”.”
Ouch! lol.