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ATC - Callsigns  
User currently offlineMjzair From United States of America, joined Nov 1999, 409 posts, RR: 0
Posted (15 years 9 months 3 weeks 4 days 11 hours ago) and read 1127 times:

While listening to ATC, I sometimes hear a letter designation after the call sign and number. For example:

Speedbird 150 Whiskey


Air Malta 110 Alfa

Why are some flights given this extra designation?


2 replies: All unread, jump to last
User currently offlineAer Lingus From Ireland, joined May 2000, 1599 posts, RR: 0
Reply 1, posted (15 years 9 months 3 weeks 4 days 10 hours ago) and read 1095 times:

All I know is that callsigns such as "XXX 128F" (Foxtrot) identify a cargo flight
"XXX 128C" (Charlie) can sometimes mean an extra flight and Brittania uses the Alpha and Bravo endings to signify the outbound and inbound flight respectively

User currently offlineWjcandee From United States of America, joined Jun 2000, 6263 posts, RR: 24
Reply 2, posted (15 years 9 months 3 weeks 4 days 9 hours ago) and read 1073 times:

Sometimes when the airlines run an extra section, or when two different planes handle a flight bearing the same number through a hub, an "Alpha" is appended to the latter flight for ATC purposes. For example, if one flight is an hour late coming into a hub and the operations department decides to have it terminate there while they send its continuation out on time using a substitute aircraft (which would then originate with the same flight number while the inbound is still in the air), the newer flight may bear the same flight number with an A at the end, or some digits may be added to the beginning, just to keep them separate and eliminate the possibility of confusion.


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