B-204

The B-204 is a human-made aircraft from the Marvel portion of the Generation 1 continuity family.

We anticipate it will meet U.S. refueling needs well into the 1960s!

The B-204 is the largest refueling plane on Earth, and its range and fuel capacity make it an invaluable resource to the United States Air Force.

Fiction

While on display at the MacDill Air Force Base, the B-204 was captured by the Decepticon Air Strike Patrol, who demanded that the humans provide the plane with a full load of fuel as well as a pilot. Back from the Dead In the end, it turned out they didn't really want the plane, it was just a ruse to attract the Autobots and keep them busy. The Resurrection Gambit!

"B-" designated aircraft in the U.S. Air Force are, in real life, always bombers. Aerial refueling aircraft have the prefix 'K-' for their designations (usually as a supplement to another role, as most are converted cargo aircraft, i.e. KC-135).
For a state-of-the art (circa 1988) design, the B-204 is a pretty bizarre-looking aircraft. It features the sort of conformal, frame-braced windscreen not seen on American aircraft since the Korean War. Its engines are likewise styled like those of post-World War II "first generation" jets, or highly-stylized airliner engine nacelles.
- In fact the B-204 looks a lot like the front end of a British Handley Page Victor tanker (a converted bomber) grafted onto the wing, rear fuselage, and tail and a Soviet Il-78 Midas tanker (a converted cargo jet)...
Perhaps unsurprisingly, the jet behind the B-204 also looks like something from the early Cold War, bearing a resemblance to a B-47 Stratojet bomber (if with fewer engines).