ren41
Posts: 1456
Joined: Mon Jan 08, 2001 3:24 am

Differing Flight Numbers Between Timetable/ATC?

Fri Aug 31, 2007 11:08 am

I've been listening to ATC a lot lately and have noticed many flight numbers which differ from those listed on timetables. These are some I can think of off the top of my head:

Timetable / ATC
BAW213 > BAW71G
BAW215 > BAW51G
GSM735 > GSM7GB
SWR15R, etc.

I admittedly do not know much about ATC and was wondering the reasoning behind the "odd" callsigns.

Thanks,
R41
 
User avatar
JBo
Posts: 1615
Joined: Wed Jan 05, 2005 7:23 am

RE: Differing Flight Numbers Between Timetable/ATC?

Fri Aug 31, 2007 11:14 am

Sometimes it has to do with different aircraft operating under the same flight number .... say BAW213 is a 757 on one leg, then becomes a 767 on the next. If that 767 flight takes off before the incoming flight, it'll depart with a different callsign so the two flights are not confused.

Also, many regional airlines ... at least in the U.S. ... will operate under a different flight number than what's printed in the timetable. i.e., American Eagle flight 4140 will operate on ATC as EGF140 ("Eagle Flight 140"). This may be done for simplicity, but in the case of operators who may operate similar flight ranges for different carriers, avoid confusion on different flight legs.
I'd take the awe of understanding over the awe of ignorance any day.
 
B777ER
Posts: 431
Joined: Mon Jun 21, 2004 3:35 pm

RE: Differing Flight Numbers Between Timetable/ATC?

Fri Aug 31, 2007 1:47 pm

No, I think it has to do with some new Euro deal where callsigns are easliy mis-pronounced or sound alike so they added a letter to the number in the end of the callsign.
 
ren41
Posts: 1456
Joined: Mon Jan 08, 2001 3:24 am

RE: Differing Flight Numbers Between Timetable/ATC?

Sat Sep 01, 2007 3:36 am

Quoting B777ER (Reply 2):
No, I think it has to do with some new Euro deal where callsigns are easliy mis-pronounced or sound alike so they added a letter to the number in the end of the callsign.

Thanks, that seems about right as it seems to affect only a handful of European carriers.

R41
 
Viscount724
Posts: 19287
Joined: Thu Oct 12, 2006 7:32 pm

RE: Differing Flight Numbers Between Timetable/ATC?

Sat Sep 01, 2007 7:55 am

If two flights with the same flight number are operating the same day, one of them will also be changed to avoid confusion (e.g. yesterday's flight operating today after a long technical delay, as well as today's flight operating as scheduled).

Just nitpicking, but BAW213, BAW215 etc. are flight numbes, not callsigns. BA's callsign as such is "Speedbird".

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos