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ADSB is how planes see each other without relying on ATC, and feeds collision avoidance systems. The FAA instructs pilots to believe these systems over ATC beca
by dsl 8y ago
ADSB is how planes see each other without relying on ATC, and feeds collision avoidance systems. The FAA instructs pilots to believe these systems over ATC because it updates faster than radar.
In a very hypothetical worst case scenario, a malfunctioning ADSB transmitter could suddenly put itself right in the path of a large commercial aircraft, forcing it to make dangerous maneuvers to avoid a collision.
- sho 8y agoTCAS[1] doesn't rely on GPS though, it builds a picture of the airspace around it through triangulation and radar-style ranging - I believe it only relies on altitude to be reported by the other aircraft, which is generally very accurate. I suppose anything is possible, but I've never heard of it actually getting plane positions wrong due to sensor malfunctions. Far more likely is pilots not following, or improperly following, its warnings. It's not capable of assuming control over the plane, as far as I know... [1] https://en.wikipedia.org/wiki/Traffic_collision_avoidance_system https://en.wikipedia.org/wiki/Traffic_collision_avoidance_sy...