|Quoting Julesmusician (Reply 4):|
if you hit the APPROACH button you will start trying to find the localiser and the glideslope and start ascending/descending to capture it, that is why ATC often ask you to stick to localiser and an altitude first
|Quoting Wing (Reply 1):|
Also it may be a good idea to use the LOC button first if you are outside of the 8/18 NM cone to prevent a false capture with other airport in the vicinity.
|Quoting Avro85 (Thread starter):|
Because from what I know, in other planes i.e the B727, you directly select the APPR which will first intercept the localizer and then the GS.
|Quoting NAV20 (Reply 8):|
You're cleared to intercept the runway line, but you're not cleared to descend until you get landing clearance.
|Quoting Avro85 (Reply 6):|
But there could be some interferecne with different localizers from different close airport as well then. I mean the GS pattern has a smaller range than the LOC pattern. So if the GS can interfere the LOC can certainly as well.... OK it's less dangerous to be off centered for a while than at a wrong altitude on aproach