  vatsim, or virtual air traffic simulation network, is a non-profit organization operating a dedicated, worldwide, internet-based flight-simulation network. users can connect to the network to either fly online as a pilot using flight simulation software, or direct traffic as an air traffic controller (atc) and participate in what has been described as a close approximation of real-life aviation procedures.     the organizat
Aviation_websites Microsoft_Flight_Simulator_add-ons Mitre_Corporation Virtual_Air_Traffic_Simulation_Network