Tutorial

[msz995]

Years back, I have been reading an online FlightGear tutorial which taught principles of navigation (DME, VOR, ...). It was written in a quite humorous way from the viewpoint of a charter plane pilot. Most of the flights described in the tutorial happened around Long Island and Boston, if I recall correctly.
I can't find that tutorial anymore. Can anyone point me in the right direction?

[benih]

Flightgear wiki had something: https://wiki.flightgear.org/Radio_navigation