Thanks mate,
Quick question to the floor: re Theoretical range of VHF aids. According to AFT notes you work out the receiver range and add it to the range of the aid.
I just did a Rob Avery Exam where the answer was to minus the height of the transmitter from your altitude and use that height in the formula.
Both methods are completely 180 degrees out from each other!
Which one does CASA use?
Cheers.