Use of 'BC' or Backcourse in full
Dear Simmers, I have been asked to explain the functionality and use of the autopilot 'backcourse'. I thought I understood it but have just tested my knowledge in my RAE Comet out of Boscombe Down it didn't work as expected. I would be obliged is anybody who fully understands this would correct my understanding, which is as follows:-
1) if flying towards a beacon from the west heading east i.e. 090 the aircraft will track towards the beacon, if I then wanted to fly away from the beacon on the same track I understood that this was one use for it i.e. I would continue to fly directly over the beacon and then select the backcourse button to fly 090 away from the beacon?
2) if making an ILS approach to an airfield that has only one ILS frequency from the 'other end' of the runway you use the backcourse in conjunction with the APR to track the ILS from the other direction so to speak?
Which one is correct or are neither of them? Would appreciate your kind assistance.
Thanks in advance and Merry XMAS
May your Dunlops always Dangle!