I fully agree on what you have used as an exampel, this is pretty reasonable. But then, lets calculate it trough.
With your example, you need another 14 days to be able to get the next 788.
How do I end up with this?
First of all the first day is over before you earn any money, as the first flight only takes of 24h after the schedules is done. Then we taje the 500'000 per day profit. A 788 needs a deposit of 6.35m, plus seating so we round it up to 6.5m. So you need 13 days to have the money raised to order the second 788. In the meantime 14 days have past.
You need to wait 1.5 day (36h) till the aircraft is delivered (so 15.5 days past) plus nother day to get it up in the air and earn money (day 16.5). Now you make 1 million per day, so you only need to wait 6.5 days to be able to order the next one (day 23). Again, 1.5days till it is delivered (24.5) plus one day till the first flight takes off and you reach day 25.5 bevore only the 3rd 788 is earning money.
Now as I have mentioned below, at least 460'000'000 had to be invested in the fleet of all the aircrafts. In 788 this would be 72 and some parts of the 73rd.
Somehowe I have problems in imagne how it should be possible to get from Nr 3 to Nr. 72 in about 4 weeks, if you need 3.5 weeks to get from nr. 1 to nr 3??? :unsure: :huh:
Even if you would earn 1million per day with a 788, you still need 15.5 days until the third 788 is in the air. A lot quicker, but in the end it still does not explain the massiv growth.
I know AS for years. I had my first tries before Kaitak has started, and my first serious porject was on Kaitak (which started in 2007). Back those days, it was much easier and quicker to grow as you got loans very easily, actually bevore the first financial week was over. But also back then, such a growth would not have been easy. However with the improvments and amendments of the game which made it more realistic, I still highly doubt that such a growth is possible if you follow the rules.
I haven't played AS for quite a while, so I surely don't know all tricks whith the newer versions. But I still consider a have a fair knowledge of the game. My airlines is doing very well and actually I'm surprised I grow that quick and can make such a profit, considerd Riem is a called a game world for advanced players. But it is far far far from what others seems to be able to handle.
I have no problems if someone is more succesfull then me, as long as this was all reached with fair play. If this is the case, no problem at all.
However if it would have been with an illeagel actions, I fear the game gets boring for those plaing fair, as the airports are full before everone had it's share.