Now you have 6 planes and 1 on order. Given that you should have no mechanism to make money until the game starts I wonder how you managed to order a 3 million euro plane with only 500,000 to start?
I'm not going to accuse anyone of cheating but airlines that have values of 16 and 18 million before the game has even started have either benefited from a very selective bug or they have found a 'creative' way to, at the very least, get around the spirit of the game rules.