#3 Running two FlightGear instances on one machine

[Petr Gotthard]

>Unfortunately I do not have a second machine to run a second instance
>of FlightGear in parallel. Once it's clear how to re-connect to the
>same instance of 'rtig' from a second, new instance of FlightGear on
>the client, then we could have a test both connecting to a common
>'rtig'.