That's a link to a page based in data from another game ...I see no performance charts with the logo of Focke-Wulf, dated in 1943 ,to back up those numbers.
Anyway the data in that page is copied from Il2's object viewer, wich, in turn, lists WRONG performances for planes (a problem admitted by oleg maddox himself). The Fw190A5 in Il2 performs WAY better than what is seen in that page
In fact, and at least up to 2500m, Il2's Fw190A5 performance matches almost milimetrically the performance seen in the chart I've pasted avobe.
BTW, I've run a short test of Fw190A5's performance in aces high. when I stopped the film,at 21.1K, the plane was making 407mph, and still was slowing down slightly...
I repeat once again, that in my humble opinion Fw190A5's speed in aces high needs to be looked at.
Now, this discussion has gone way off-topic. This thread is about Fw190A9's performance, not Fw190A5's. Still I insist that you need to base your arguments on a SOLID base.
Computer Game charts are,generally speaking (and with notable exceptions) NOT a solid base to use, that's all I wanted you to see. I hope you get the point.