Hearing military jets overhead — sometimes low and loud — is unsettling the first time, but it’s usually routine training or a transit along an established route. A lot of military aviation broadcasts ADS-B, so AeroScope can often identify it. Here’s why it happens and how to check.
Crews train constantly — in military operating areas, low-level routes and around bases. Repetition over the same regions is normal.
Transports, tankers and trainers ferry between bases along established airways, passing over wide areas.
Scheduled exercises temporarily raise activity — more aircraft, more often, for a period.
Tankers fly long racetracks in designated tracks; you may see one orbiting for a while.
AeroScope cross-checks the aircraft’s ICAO hex against known military allocation blocks, matches tactical callsigns, and classifies mission-like patterns (tanker tracks, racetracks, loiters). When they agree, the aircraft is flagged. For the full method, see military aircraft tracking.
| Often visible | Usually not |
|---|---|
| Transports, tankers, trainers | Combat aircraft on operational sorties (transponder off) |
| Many ISR/surveillance in transit | Anything under emissions control (EMCON) |
| State / VIP transports | Most special-operations rotary activity |