Originally Posted by
Sam Rutherford
Never thought about it, then last Friday suddenly got to wondering.
Anyone know?
I'm guessing that people that know the answer, will understand the question!
I assume it's so that London Info know who is and who isn't listening to them, but, again an assumption, you only set it when told to
(all assumptions because i stopped flying some years ago due to medications not being on the CAA approved list [and din't like the idea of cheating by self certifying and getting a lower privilege license])