ATC read back in X-Plane 10

Another issue that should be considered is the AI aircraft themselves. AFAIK (and someone please correct me if I'm wrong), the AI uses the same flyable aircraft, which eats rather large chunks of memory. One of the great things about FSX AI is that all you need is a lightweight external visual model and basic airfile, which keeps the demand on resources low. Could such a thing work in X-Plane?

Ha, ha, this is true. It flipped me out when I first seen the aircraft that I purchased taxing around me at the airport.