Antonov An-990 〈Must Try〉

Officially, the An-990 never existed. No technical manual, no wind tunnel model, no grainy black-and-white photograph has ever been authenticated. Yet, among post-Soviet aerospace engineers, it is a cautionary fable of "what if the constraints of physics were merely suggestions?"

: It is described as likely the biggest aircraft in X-Plane, with a maximum weight of 6,000 tonnes (13.2 million lbs), which is roughly 120 times the weight of a Boeing 737-100. antonov an-990

The only operational anecdote comes from a purported "leak" by a former Antonov test engineer in a 2012 forum post, since deleted. He claimed that a single prototype—registration CCCP-990100—was rolled out of a modified hangar in Kyiv in December 1991, just weeks before the fall of the Soviet Union. Officially, the An-990 never existed