Flight sims offer very realistic simulations of how a particular aircraft feels, claimed by pilot interviews on youtube.
But how do sims get their data?
First, does all this data even exist, i mean companies have data on how the aircraft changes control for example, due to some wind turbulance, or the slight turn of the steering?
Second, how do companies get this data? Particularly for fighters.
Third, how do they manage to offer such a realistic experience? Are they in direct communication with the aircraft companies / goverments? Isn't data like this confidential?