Questions tagged [air-traffic-control]

Air Traffic Control (ATC) is a service of ground-based controllers that directs and coordinates aircraft to improve safety and efficiency.

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8
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1answer
675 views

Can one ARTCC take over for another ARTCC in an emergency?

Earlier today the ZNY ARTCC was shut down due to COVID-19. This resulted in a temporary ground stop for incoming flights while a contingency plan was being activated. When certain sectors within an ...
3
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2answers
292 views

Will there be dynamic or variable separation minima in future?

In the future, is it possible to apply in the same airspace different separations between pairs of aircraft? Depending on the relative speed, navigation capacity of the aircraft, intersection geometry,...
7
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1answer
113 views

What is the status of a bravo airspace when the associated TRACON is evacuated?

On 18 March 2020, an earthquake struck just south of KSLC, causing an evacuation of the control tower and TRACON facilities. The airport was closed. Later in the day, I found myself unable to ...
0
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0answers
46 views

How to find out how many aircraft depart/land from a country per day?

I am trying to get the following information. I would like to know for each day how many aircraft have taken off and departed from a specific country. This information should be up to date and ...
0
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1answer
100 views

What is the 'Downstream Clearance?'

Downstream clearance means a clearance issued to an aircraft by an air traffic control unit that is not the current controlling authority of that aircraft; but I don't get it so well. Thanks in ...
13
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4answers
2k views

What does the flashing green-light signal (return for landing) actually mean to NORDO aircraft?

Studying for the PSTAR I see that a flashing green signal while in the circuit means "return for landing" but this is not actually defined anywhere. What does that mean? NORDO = "is an aircraft ...
18
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1answer
2k views

Should I wait for Tower to provide runway exit instructions?

This is somewhat already answered here (Is it a flight violation to mishear ATC instructions for exiting the runway?), but this question is more geared toward taking action before hearing from Tower. ...
2
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1answer
131 views

Where are “standard taxi” instructions published? [duplicate]

Example: at KATL (Atlanta), the ground control sometimes gives taxi instructions as "standard taxi"; Where is that defined? Delta 2732 27-Right Lima Charlie "Standard Taxi." In that case, from a ...
-1
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1answer
159 views

What does “climb to FL300” mean? [closed]

If you are flying at FL275 and the control center tells you to climb to FL300, what does that mean and what does the pilot have to do to meet that direction from the ATC?
0
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2answers
159 views

What Transponder code to use flying between Oakland and Hawaii? [closed]

Where to find the appropriate Transponder code for crossing the Pacific?
4
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2answers
280 views

Can a VFR flight reference a waypoint in communication?

Can a VFR flight reference an IFR Waypoint when communicating position to tower or centers? For example: “N1234 at 3500’ at FERMY, request blah blah blah?” Thanks RHD! ****Adding additional ...
2
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2answers
174 views

What is the main reason why cruise flight in the transition layer is prohibited?

What is the main reason why cruise flight in the transition layer is prohibited? For example if we have a separation of 1000 ft between transition altitude and transition level, why should we not ...
4
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2answers
634 views

When (if ever) can ATC order an aircraft to go around?

Can ATC order an aircraft to go around if there is a tailwind? Or should ATC give the pilots the current wind information and let them decide whether to go around or land?
6
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2answers
150 views

What is the German / European equivalent of FAA Order 7110.65?

FAA Order 7110.65 prescribes air traffic control procedures and phraseology for use by personnel providing ATC services in the USA. Which documents regulate these aspects in Germany, or, more ...
3
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1answer
215 views

Who was the air traffic controller voice?

I recall reading somewhere that the 'Air traffic controller' voice (you've heard it on TV on many occasions) started with one specific person and his mannerisms have been copied by many air traffic ...
1
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3answers
326 views

What happens when a GA pilot squawks 7500?

If you were to put code 7500 into your transponder in a small general aviation aircraft, and you were in a rural area with no one around, and you did not have enough fuel to get to any city, what ...
0
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0answers
77 views

Is there a minimum amount of time an airline has to leave between using two identical callsigns?

Does anyone know if there is a minimum time that an airline has to leave before reusing the same callsign? I have noticed that airlines reuse callsigns, they usually leave a day or two between ...
1
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2answers
259 views

to whom are PAN PAN PAN calls addressed?

Can a PAN PAN situation be adressed directly to an ATC or must it be at adressed only at large? This is a situation wereby the ATC was the destination before the situation of the pilote got worse.
17
votes
3answers
6k views

Can a commercial airplane overtake another airplane going in the same direction?

If there are two commercial airplane flying towards the same destination, on the same flight path, and the second plane is being faster than the first plane, is the second plane allowed to overtake ...
15
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6answers
8k views

What is the commercial passenger aircraft top speed record?

Aircraft manufacturers claims commercial passenger aircrafts cruise at the speed of 400-500 knots. But is the top speed of a commercial passenger aircraft recorded (while in air)? If so, what is the ...
5
votes
1answer
219 views

What is the 'Deconfliction Service'?

High Speed Flights 2.36 - When receiving an ATS surveillance service, certain ex-military aircraft types have been granted a CAA exemption from the Air Navigation Order requirement to fly at an ...
0
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1answer
157 views

Who does ATC call when a plane disappears with no response?

Do they just call 911? Or is there some special unit that’s specifically trained around disasters and rescue?
10
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2answers
4k views

Is there a penalty for changing the approach procedure after accepting one?

For example: If you request a visual approach and get approved, but you meant to request an ILS approach, are you not allowed to change it? Is there some type of penalty for changing approaches after ...
5
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2answers
256 views

What is the beeping occasionally heard in the background of ATC?

Occasionally while listening to ATC, I hear a beeping in the background of their transmission. My suspicion is it's a traffic conflict alert since the beeping is usually followed with a traffic alert ...
29
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2answers
5k views

What does ATC do during “slow” times?

I know at larger airports, it's NEVER a slow time. But what about at smaller airports that are large enough to rate manned ATC, but things aren't always fast-paced, high-traffic like at JFK or DFW, ...
4
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1answer
119 views

Difference between ETA and On-Block time?

I see that the definition of the ETA (Estimated Time of Arrival) according to Eurocontrol is: (SESAR) the time computed by the FMS for the flight arriving at a point related to the destination ...
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2answers
197 views

How is ATC handed for private rural airstrips? [duplicate]

In rural Australia there are farms that have private airstrips. My question is when an aircraft wishes to land at such a strip (for example a flying doctor) who handles the landing aspects of ATC. ...
19
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2answers
4k views

Why would an airliner make a 90° course change?

Why would this airliner be doing a 90° course change at cruising altitude? I saw this while waiting for a traffic light to change. 9 Jan 2020 1:42 pm (18:42 UTC) at Virginia Beach, VA, coordinates: ...
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3answers
120 views

What is the proper phraseology for a clearance with a named obstacle departure procedure?

The Phoenix Mesa-Gateway Airport (KIWA) has a named obstacle departure procedure - the Phoenix Departure. What's the correct phraseology for when clearance assigns it to you? Is it "N123AB, cleared ...
0
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1answer
142 views

Are Helicopters allowed near busy airports? [closed]

Are Helicopters allowed near busy airports or any airports at all and if not why not
31
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4answers
8k views

Why are there many pilots who don't say “mayday, mayday, mayday” to declare an emergency?

I've been listening to some ATC from some major commercial pilots and in every video where there's been some confusion about declaring an emergency they've used some terminology other than "mayday, ...
6
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2answers
1k views

Can a IFR flight plan be amended or cancelled whilst in flight?

I'm asking, because ForeFlight states in their demo training video that an IFR filed flight plans can only be amended or cancelled up to 47 minutes prior to it being filed (and up to 2 hours after, ...
-2
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2answers
134 views

When does a pilot ask for landing clearance, and when do they recieve it? [duplicate]

Could a pilot flying directly overhead of the airport gain landing clearance, Could a pilot on the wrong end of runway heading get landing clearance, Or would they require approach instructions, or ...
2
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2answers
397 views

Is a Mode C or S Transponder a type of Mode 3 Transponder?

Mode A transponders are sometimes referred to as Mode 3/A transponders. According to NATO STANAG 4193 (not publicly available, summary from Wikipedia), the "3" in that description refers to the mode ...
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3answers
174 views

How long is a climb leg in a step-climb cruise flight segment allowed to take, according to regulations (FAA/EASA)?

I am working on a trajectory optimisation program for commercial, large aircraft, in which I want to incorporate realistic air traffic control regulations. One of the constraints I want to incorporate ...
5
votes
1answer
453 views

What terminologies are used when ATC instructs a pilot to stop or proceed with his transmission?

If some pilot forgets to release his mic button, distracting everyone on the frequency, what terminology can be used by an ATC to stop it? And if another pilot stop transmitting his message until the ...
5
votes
1answer
276 views

Is there absolutely any way (hook or crook) to listen to ATC in India, especially Bangalore?

We can listen to various ATC radios across the world, but I really want to listen to the ATC at VOBL.
4
votes
4answers
353 views

Does a pilot need clearance to enter the traffic pattern?

In one video, I saw a Cessna that got its instructions to enter the pattern along with landing clearance, but I saw another where the pilot just flew in and got clearance somewhere around late-...
13
votes
1answer
2k views

What happens if a crew complies but does not read back ATC instructions?

For example, a commercial airliner is inbound and is in the traffic pattern; ATC instructs the aircraft to reduce speed to 160 knots, which the airliner does. ATC notice the aircraft has complied but ...
8
votes
3answers
2k views

When can a taxi clearance allow me to cross multiple runways?

I was just reading the FAA instrument procedures handbook and saw the paragraph below in Ch 1. I'm puzzled by this, because I routinely get "Cross runways XX right and XX left on Alpha" as part of my ...
4
votes
4answers
441 views

Is a 40-year-old person too old to start an ATC career?

My wife: is 40 years old is a mother of two (able to do five things simultaneously / in the same time) has been working as an English and French teacher for her whole career (19+ last years) has very ...
0
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2answers
51 views

Is the capacity of an airspace sector related to the number of routes it crosses?

I've been searching for data about the capacity of sectors for my PhD research but somehow can't find any...the only thing I found is the routes it crosses ....can we conclude that it's the capacity ...
3
votes
1answer
262 views

last 747 flight path, was this hand flown? How was this communicated with ATC? [duplicate]

Elal's last 747 flight made this nice path of a 747, how was this done? Could this be entered into the computer and flown? or was this hand flown The path looks quite neat Also what is the ATC ...
6
votes
1answer
224 views

How is the Flight Plan Data transferred into an aircraft/plane?

I know that pilots have to fill the ICAO standard flight plan and send it to the relevant CAA to be checked, updated if needed and finally approved before the flight takes off. what I am looking for ...
2
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1answer
187 views

What is the difference between “Bay” and “Stand”?

When should we use the word Stand and when Bay for ATC taxi clearance?
7
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1answer
497 views

How would an aircraft fly PIKES ONE departure procedure of Denver Airport?

I was examining FAA's departure procedures and I noticed PIKES ONE SID (chart and continuation) which serves Denver Airport. In the description, it states: TAKEOFF ALL RUNWAYS: Fly assigned ...
1
vote
1answer
643 views

Can I listen to control tower frequencies on a ham radio legally [duplicate]

Is there a frequency I can tune into to listen to airport I’m in Durham by RDU AIRPORT and would like to listen in on a ham radio only legally
11
votes
2answers
4k views

Is there a minimal approach speed for airliners during rush hour?

For busy airport, sequencing can be complexe. If the ATC put all aircraft in front of each other with the correct separation (which can be really small for busy airports) in final, if the airliners' ...
0
votes
1answer
99 views

How to match ATC requirements to work in EU?

My Brazilian boyfriend is finally planning to move into the EU zone (he actually got an Italian passport). He would be glad to keep his work as an Air Traffic Controller but despite his 10 years ...
4
votes
1answer
86 views

How does density altitude affect Taxi-Out Time?

To keep things brief, for a data exploration project, I calculated density altitude for a couple airports and used flight statistics from https://www.transtats.bts.gov/ONTIME/Departures.aspx. I was ...

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