Dumb question?
Join Date: Dec 2005
Location: Europe
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
Calling Airborne is NOT an ICAO requirement and certainly haven't heard any large UK airline doing so while operating during low vis throughout europe.
The only airport ATC personnel i know which often states "after take off call airborne' is Istanbul.If you take the sentence by the letter you will call 'airborne' which i never do but rather call with standard phraseology.ie..passing 3000ft which implies that im effectively 'off the ground/airborne'
Heathrow director we need you to close this thread
The only airport ATC personnel i know which often states "after take off call airborne' is Istanbul.If you take the sentence by the letter you will call 'airborne' which i never do but rather call with standard phraseology.ie..passing 3000ft which implies that im effectively 'off the ground/airborne'
Heathrow director we need you to close this thread
Join Date: May 2008
Location: Hang on, let me check the FMS...
Posts: 195
Likes: 0
Received 0 Likes
on
0 Posts
To clarify, the call is made with the tower as requested by ATC, then you are passed to 'control or radar' etc. where you pass your altitude, cleared level and SID.
Maybe an ATCO can clarify why some towers ask for this and others dont? Equipment maybe?
Maybe an ATCO can clarify why some towers ask for this and others dont? Equipment maybe?
Calling your passing altitude after take off is to check that your transponder is giving the correct altitude readout.
In older systems (20-30 years ago) it was not unusual for there to be errors. I believe the altimeter pick up was by mechanical switching from a rotating drum.
Also I once had a controller tell us that we looked like 2 A/C in close formation. This was due to a wiring fault that caused both transponders to be on at the same time.
In older systems (20-30 years ago) it was not unusual for there to be errors. I believe the altimeter pick up was by mechanical switching from a rotating drum.
Also I once had a controller tell us that we looked like 2 A/C in close formation. This was due to a wiring fault that caused both transponders to be on at the same time.
