& REFERENCEThe game
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A short path through the basics
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Read one guide at a time. Use the existing game training to practise. The longer walkthrough is optional and has chapters.
- 01
Where should I start in Air Defender?
Start with the radar picture. Learn what one track is telling you before trying to manage the whole airspace.
- 02
What is the difference between a plot and a track?
A plot is a detection. A track brings successive detections together so the system can follow movement and display information.
- 03
Why does a triangle become a circle or semicircle?
The origin shape changes when a plot is associated with a track. The established shape also tells you which radar information is contributing.
- 04
What is the difference between Nimrod and AWACS in the game?
Nimrod R1 listens for emissions. The E-3D Sentry supplies airborne radar coverage.
Optional chaptered walkthrough
Developer walkthrough: the basicsWords 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- Plot
One report of a detected position. The history dots behind a contact are plots showing earlier reported positions.
Related guide: plot or track- Origin shape
The symbol marking a detected contact’s position. It can appear before a track has been formed. In Air Defender, the shape reflects track association and recorded radar information; it is not an identity or a guarantee of fresh detection.
Related guide: origin shapes- Nimrod R1
The game’s aircraft for listening to electronic signals. It provides different information from the E-3D’s radar.
Related guide: nimrod awacs

