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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how do people smuggle stuff with private airplanes?

I get it, the question seems as if i`m reaching out for answers from experienced smugglers! But NO. As a matter of fact, i'm trying to get answers on air surveillance & security basis. Love it ...
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What is the standard way for the ATC to ask a pilot to repeat him/herself?

There is a lot of information on how the pilot should ask the ATC to repeat a statement, but is there a standard way for the ATC to ask the pilot to repeat a readback, or any new information that the ...
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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,...
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Why do pilots use airways instead of just “flying direct” every time?

These days, on larger/newer aircraft at least, GPS navigation is ubiquitous. So VORs and Non-directional Beacons (NDBs) are used less. Wasn't the reason for airways because they were the connection ...
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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 ...
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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 ...
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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 ...
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Why does Class D overlap class B around SeaTac? …and other Seattle Bravo airspace strangeness

I noticed KBFI's class delta overlaps SeaTac's bravo by 500 to 700 feet. Does anyone know which tower the overlapping airspace belongs to? Does it classify as Bravo airspace and do you need to hear ...
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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 ...
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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 ...
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What does 'intercept final' exactly mean?

I work as ATC in Korea. I have question about the exact meaning of the word 'intercept'. In FAA order 7110.65, 5-9-1 vector to final approach course, "vector to intercept the final approach course", ...
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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. ...
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“What's our vector, Victor?”: What does this mean?

In Airplane there is a famous sequence: ...
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1answer
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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 ...
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1answer
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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?
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Why can't aircraft be cleared to land before the preceding aircraft turns off the runway?

For example, let's say we have an Airbus A330 in front, which has just landed, well past the threshold and looks like it's going to be alright. Next in line to land is a small general aviation ...
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How does ATC know if you have been assigned a squawk or not?

Departing VFR from class D airspace, either you can request flight following after you leave the airspace or you may ask the airport ground/tower and they assign you a squawk code and setup the flight ...
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May an emergency aircraft land on a closed runway?

Let's say that you're on approach to a remote airport to refuel (for arguments sake, Funafuti International Airport, Tuvalu), with 1-2 hours of fuel remaining in your aircraft. Contacting ATC to ...
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159 views

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

Where to find the appropriate Transponder code for crossing the Pacific?
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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 ...
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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 ...
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3answers
5k views

How is the ATC language structured?

Is the content of spoken communications used by air traffic control and pilots defined as part of a rigorous language definition? Such as a morphological or lexical foundational system, or is ...
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Can ATC handle a flight as emergency although the pilots have not declared an emergency?

The preliminary report for the LNI610 crash shows how much distractive conversation there was between ATC and LIN610 at a time when the pilots clearly didn't have the aircraft under control – as ...
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Could I issue clearances at a private airstrip without being a controller?

Hypothetically, if I owned a private airstrip on my property, with all the necessary permissions to do so, and I only want certain aircraft landing there, would I be allowed to issue takeoff and ...
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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 ...
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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?
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217 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 ...
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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 ...
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260 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.
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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 ...
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6answers
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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 ...
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3answers
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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 ...
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9answers
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Can a military pilot make his airplane invisible for the ATCs?

I'm writing a story about the pilot of the Austrian Air Force, who uses his Eurofighter Typhoon aircraft for unintended purposes. I've read stories in the internets that civil pilots allegedly can ...
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235 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 ...
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How are squawk codes assigned?

How are the 4-digit squawk codes assigned to individual flights? This answer indicates that there should be a "correct" one. How does ATC know what is "correct" and what is "incorrect"?
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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?
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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 ...
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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, ...
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259 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 ...
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1answer
123 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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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. ...
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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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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 ...
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1answer
143 views

Are Helicopters allowed near busy airports? [closed]

Are Helicopters allowed near busy airports or any airports at all and if not why not
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855 views

Does a Tower controller need to see an aircraft on final to give landing clearance?

If there is an IFR aircraft on approach that has already received an approach clearance, and he reports being at the final approach fix but the controller does not have him in sight yet, can the ...
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3answers
698 views

In a part 91 formation flight within a mode C veil, are all the aircraft required to have their transponders on?

Two aircraft are planning on conducting a standard formation flight (aircraft remaining within 1 mile of each other) as follows in the U.S.: Maintaining VFR below 10,000 MSL; Remaining outside/clear ...
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3answers
634 views

Can paragliders in the US communicate with ATC?

I am a private pilot looking to get into paragliding. After talking to some of my friends who do paragliding in the San Francisco Bay area and watching YouTube videos I noticed some fly through places ...
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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, ...
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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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279 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.

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