It is possible the there will be an increasing number of Raspberries being added to the FlightGear simulator. It is also possible that the location of said simulator only has a WiFi connection, to the home network. Furthermore, the home network might be saturated by other family menbers. It also might be possible that this cluster of devices is using Barrier, to share a common keyboard and mouse. One solution is to use a common WiFi router as a LAN/WLAN Bridge. Now, all the Raspberries can be connected to switch that is part of the Bridge Router and still have a internet connection.