These AFCADs provide parking at other airfields in Abu Dhabi, but not the rest of the UAE (hence Fujairah isn't here, for example). These are not strictly accurate, but were created to allow parking positions for the Abu Dhabi Helicopters fleet. These helicopters normally fly out to oil rigs, but since there are no rigs specified in FS9 as landing places, these flights go instead to airports across the UAE and throughout Abu Dhabi. Airports for Abu Dhabi were therefore created because many helicopter flights are from airports that are within the AI visual zone from Abu Dhabi airport and, if there are no parking spaces there, the helicopters never "spawn" into the simulation and can thus never fly to Abu Dhabi. So, these afcads were created to keep helicopter activity at Abu Dhabi alive!