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Identification / 5 MIN READ

Why does BAW436 become Speedbird 436 in the ATC reply?

Match civilian callsigns, radio names and aircraft registrations in Air Defender, then check the same contact in ASMA and the register.

Game reference · v0.8.16.0Instructions use this version’s reference and controls. Your bindings or a later version may differ.
On this page

Unfamiliar word? Select a dotted-underlined term for its meaning.

One flight can have two forms of its name

On the trackIn RT Callsign
BAW436SPEEDBIRD 436: BAW is the operator code; Speedbird is the radio name used for British Airways in the game. The flight number stays 436.
EXS1234CHANNEX 1234: EXS is the operator code; Channex is its radio name. A different word does not mean a second aircraft.
G-BURJGOLF BRAVO UNIFORM ROMEO JULIET: a registration can be used as the callsign. The game spells its letters and leaves out the hyphen.

These are examples of the game’s naming rules, not a list of aircraft currently flying. R/T means radio telephony: the name used on the radio. In an ASMA reply, RT Callsign is the full radio form for that flight.

A flight name and an aircraft record answer different questions

FieldWhat you are matching
Callsign and flight numberBAW436 names the flight. 436 is part of that name; it is not the track serial or squawk. A later flight can reuse a name.
Registration / REGThe aircraft’s registration, such as G-BURJ. Airline callsigns can differ from the registration; some other flights use the registration as their callsign.
Mode SThe six-character address shown for the aircraft, such as 4055C7. Keep starting zeros. Use the Mode S lookup to find its register entry.
Aircraft type / TYPEA model or type code. HS74 is the type code on the game’s G-BURJ record; it is neither the airline code nor an airport code. Use Aircraft Data for type information.
Track serial and Mode 3/AThe track serial identifies the scope track. The four-digit squawk is a separate transponder code. Neither is the number after BAW.

Your player profile callsign is different again: it names you in the game, not one of these aircraft.

Check the same contact in the ATC reply

  1. Left-click the intended contact and compare its callsign in Flight Info and track serial on the scope data block. If AC Control opened, choose the Flight Info tab.
  2. With default bindings, press backslash \ to call ATC for that contact. Leave any text field first. Read the ASMA ATC messages.
  3. Compare the reply’s track label with the contact you selected. Read Operator and RT Callsign when present. In the BAW436 example, SPEEDBIRD 436 is the radio form of the same flight name.
  4. If the reply redirects you to another controller, follow the controller-call steps. On an open controller line, use the complete displayed callsign or TRACK followed by the actual serial. TRACK 012 is a format example; use your contact’s number.

Use the registration to check the aircraft, not the flight number

  1. Note the selected contact’s registration and MODE S when available. Open Aircraft Register and replace Search with one complete value.
  2. Compare REG, MODE S, TYPE and OPERATOR together. In this game reference, G-BURJ and 4055C7 lead to the same HS74 record. That does not mean this aircraft is in your session.
  3. Read the selected row’s R/T as its operator’s radio-name entry. For this record it is Clewer, but the registration-first naming rule produces G-BURJ as the flight callsign. The register’s R/T entry is not always the complete name shown in an ASMA RT Callsign line.

A register match is one piece of evidence. Keep checking the identification procedure; a familiar operator or callsign does not establish friendly identity.

When the names do not seem to match

What you seeWhat to check next
A radio word instead of three lettersCompare the full flight number and the reply’s track label. Use the civilian examples above; do not try to match only the radio word.
No live track matchesRecheck the live displayed callsign. On an open controller line, try TRACK plus the actual serial. A register search cannot find a live flight by its generated flight number.
No RT Callsign lineThe reply may not have that information. Compare the available track data and register fields; missing information alone does not make the contact hostile.
SHT with Shuttle, or an unexpected numberThe game can allocate SHT / Shuttle for British Airways contacts. Numbers are generated within operator-specific rules. They are not a real timetable or reliable proof of the actual route; read the flight plan.

Keep the full names, track serial and screenshot if the selected contact and reply still disagree. Use the reporting guide. Do not change identity just to make the labels agree.

Try it with one civilian contact

  1. Choose one civilian contact in your session. Write down its callsign and track serial, then get its ATC reply.
  2. Explain which part names the flight, which word is the radio name, and which value is the squawk. If something is missing, say that it is missing.
  3. If MODE S is available, find the register entry and compare the registration and type. Finish by checking that Flight Info still shows the contact you started with. No identity change or aircraft order is needed.
Words used on this page

Choose an underlined term for a quick explanation, or browse the meanings here.

Callsign

The name or letters and numbers used to refer to a flight in communications. Match it with the displayed aircraft before issuing an order.

Related guide: communications
Contact

Something detected or being followed on the display. You may still need to establish what it is.

Related guide: plot or track
ASMA

The game’s message and command window. Use it to read reports, check responses to orders and type supported commands.

Related guide: asma commands
Track serial

The reference number the game assigns to a track, such as 007. It is different from the aircraft’s four-digit squawk code.

Related guide: trackblock
Squawk

The code set on an aircraft’s transponder. A four-digit squawk is information to check, not a permanent aircraft identity.

Related guide: squawk codes
Mode 3/A

The compatible military Mode 3 and civilian Mode A system for replying with a four-digit transponder code. The code itself is not a height.

Related guide: squawk codes
Scope

The radar display: the map-like screen containing contacts, symbols and information.

Related guide: first session
Track

The system’s record of a contact over time, built from related reports. On the scope it is shown using a symbol and available information.

Related guide: plot or track
Transponder

Equipment on an aircraft that sends coded radio replies when questioned by a compatible radar system.

Related guide: primary secondary
Key binding

The key assigned to an action. A default binding is the original choice; you can have different keys configured.

Related guide: keyboard rebinding
ATC

Air traffic control: the service that manages aircraft traffic. In Air Defender, asking ATC can help you check a flight’s information.

Related guide: call atc
Flight plan

Information about an intended flight, such as its route and destination. Compare that plan with what the aircraft is actually doing.

Related guide: flight plans
IN PLAIN ENGLISH

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