MS Word wasn't very good at creating Word documents in its original format. In fact, there is a great deal of software released that, in its initial form, is not all that great at its intended purpose.
I don't know that G3 was good or bad at its release - I know little about it. I just know a great deal about software in general, and it is not unlikely that the engine in the initial release of G3 was lacking.
I mean no offense, but you seem to know very little about software.
By the way, no, that's not how software is reverse engineered, anywhere.
ORIGINAL: NightOne
My point being is that flight physics would be the #1 important feature for a flight sim and thus would have been in there since the beginning with only tweaks throughout the years.
That would be like saying MS Word doesn't actually get good at creating documents until 2003 version.