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Air Traffic Control (ATC) is a service of ground-based controllers that directs and coordinates aircraft to improve safety and efficiency.
6
votes
Are right hand patterns allowed at any airport with approval?
When you're at a controlled airport, ATC directions can be anything they want for pattern entry.
AIM 4-3-2 does a poor job of saying it with this text:
When necessary, the tower controller will issue …
6
votes
Accepted
When are you allowed to use a call sign that is not the aircraft registration?
For the US, this is covered in AC120-26L, or in a more human-interpretable way from an NBAA article.
When are you required to use your aircraft registration
By default unless you have a callsign …
3
votes
If ADS-B is on majority of aircraft, why don't we start seeing ASR dying out?
Radars are still needed. Aircraft have failures. Pilots accidentally turn off transponders. Radars have weather modes and thunderstorms don't have transponders. Even flocks of birds can show up on rad …