If the model doesn't exist, the post should correct that and maybe suggest similar models. Alternatively, if there's a new one, but I don't have info on that. I should proceed by noting that the An-990 isn't real and provide info on prominent Antonov aircraft, perhaps the An-225 as the largest. Also, mention the An-124, An-148, etc., and explain their features. That way, the post stays accurate even if the original premise is incorrect.
