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Reading the scope / 7 MIN READ

How do I find and hook an aircraft in TRACK LIST?

Search track rows, filter by identity, locate an aircraft and choose the right hook control. The track list and flight-plan list serve different jobs.

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.

Find a track

  1. Select TRACK LIST on the main game menu, or press T with the default controls. Click outside any text-entry box first so the key is used as a control rather than typed into your message.
  2. Enter part of a callsign in Filter Callsign. The search ignores letter case. Digits also match part of the displayed Track No, so a numeric search can return more than one aircraft.
  3. Read Callsign, Ident and Track No together to confirm the row. A callsign is the aircraft’s name on the radio; the track number is the system’s reference number.
  4. Select > in that row to centre the camera on the aircraft and show its IDENT locating marker. This does not classify it as hostile.
  5. Use CLEAR to remove both the callsign search and the list’s identity filter. This also returns the list scroll to the top.

Filter by identity

The summary buttons combine an identity letter with a count. Select one to show only that identity; select it again to remove that identity filter. A callsign search still applies at the same time. For example, an active identity filter can hide a callsign that would otherwise match. Read Filter: and Ident: above the list, or use CLEAR. These list filters do not assign a new identity; see what the letters mean.

Understand the columns

ColumnMeaning
Callsign / Track NoRadio name and the system’s track reference. Use both when reporting a problem.
IdentThe track identity letter. This row button also selects/highlights the contact; it is not the identity-summary filter.
RoleThe role value available for the track. A dash means no value is shown here.
Hgt/SpdHeight in hundreds of feet, then speed in knots. For example, 250/300 means 25,000 feet and 300 knots.
IFF 3A/4/5The available identification-reply summary. IFF means Identification Friend or Foe. IFF 3A/4/5 is the game’s column label; it does not identify which systems were operational in 1998. See Mode 3/A and identification checks rather than deciding from one value alone.
Mode SThe aircraft address when available; use the register guide.
CALL ATCRequests a controller query for this row’s track. Read the result in ASMA.
HookThe + or check-mark button adds or removes a hook for this track. A hook marks a contact for your attention; see hooking controls.

Highlighting and hooking are different

For direct hook control, use the Hook column: + adds a hook and ✔ removes it. Selecting the Ident row button highlights the aircraft, emphasises its leader and focuses the camera; when selecting a new highlighted contact, it also reverses that contact’s current hook state. Selecting the already highlighted contact again removes the highlight and restores the saved camera view. Do not assume the identity button only moves the camera. Check the Hook column after using it.

Why did the row move or disappear?

The list puts tracks with an emergency status first, then sorts by descending track number. It is not a player-controlled column sort. Clear filters before concluding a contact has gone. No tracks match the current filters. describes the list result, not proof that the sky is empty. If the actual aircraft symbol disappears, use the missing-track checks.

Track list or flight plans?

TRACK LIST shows available track rows. FLT PLNS shows active flight-plan assignments and route information. An aircraft without a plan may still appear as a track. Use the track list to locate and hook a contact; use Flight Info and the flight-plan list to investigate its available flight details.

Why the identity count differs from the rows

The identity-summary counts are calculated before the list’s callsign and identity filters. Filtering to one callsign therefore does not turn those buttons into counts for that one flight. Read the rows as your filtered result and the summary as the wider identity count. Neither tells you how many aircraft have a matching flight plan.

A callsign with digits can match other rows

The search also takes the digits from your input and checks the displayed track number. For example, text ending in 12 can match a callsign containing that text or a Track No containing 12. This is why a full-looking callsign search can return unexpected rows. Confirm Callsign and Track No together; do not assume the first result is the intended contact.

Keyboard hook control

Use the Hook column for direct control of a list row: + adds a hook and ✔ removes it. Check Callsign and Track No first. H can also act on the contact last selected on the scope, which may differ from the highlighted list row. If you have been switching between the list and scope, use the row button instead of assuming H has only one target. Click outside text entry before using keyboard controls. The hook guide explains the working group.

Practise the three different actions

  1. Use CLEAR, then search for a contact. Confirm its Callsign and Track No.
  2. Press > to locate it and see the four-triangle marker. This is not a new identity assignment.
  3. Use + in the Hook column to add a hook. Check for ✔; press it to remove the hook again.
  4. Use the row’s Ident button to highlight the contact. Check the Hook column: highlighting a new row also toggles its hook. When switching between the scope and list, use the row’s + / ✔ button instead of assuming H acts on only that row.
  5. Clear the filters when finished. If a row is absent, use the display checks rather than deciding the aircraft has disappeared.

Close, minimise or reopen the list

  1. Use x on the TRACK LIST title bar to close the list. In v0.8.16.0, its main window is movable in every screen mode; you do not need a separate fixed-layout CLOSE button.
  2. If you minimise a movable TRACK LIST window, it becomes a small bar. Use the □ restore button on that bar to open it again; × closes it.
  3. To reopen a closed list, select TRACK LIST in the main game menu or use T with the default controls, outside a text-entry box. If the panel is off-screen or awkwardly sized, use the panel arrangement guide.

Closing the list changes the panel’s visibility. It does not remove aircraft from the radar or clear their hooks. To remove a hook, use the row’s ✔ button or the hooking controls.

Finish without leaving a confusing selection

  1. Confirm Callsign and Track No in the row you have highlighted.
  2. Select that same row’s Ident button again to remove the list highlight and restore the saved camera view. This does not remove its hook.
  3. If you no longer need the hook, use ✔ in that row. Use CLEAR to remove list filters; closing the panel is a separate action.

Does closing TRACK LIST clear its highlighted row?

Do not use closing as an undo. The list can remember its highlight while closed. Remove it with the same row’s Ident button; remove an unwanted hook separately with ✔.

Why use the row button instead of H here?

The scope selection and list highlight can refer to different contacts. The row’s + or ✔ names the contact you are acting on and shows the resulting hook state. Read the callsign and track number before using it.

Sources & further reading

Further reading on the real-world concepts discussed here. These sources do not document Air Defender’s controls or behaviour.

Words used on this page

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

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
Hook

Keep a contact in your working group after selecting another one. You can have several hooked contacts but only one current selection.

Related guide: hook track
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
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
Identity filter

A display setting that shows only the identity categories you have included. Filtering what you see is different from changing a contact’s identity.

Related guide: declutter
Contact

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

Related guide: plot or track
Knots

A unit of speed used in aviation: nautical miles per hour.

Related guide: trackblock
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
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
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
Leader

The line from a contact that shows its direction of movement. Read the speed value for an exact number rather than measuring the line.

Related guide: leaders plots
Scope

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

Related guide: first session
Toggle

Switch between two states, such as on and off, by using the same control again.

Related guide: controls
IN PLAIN ENGLISH

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