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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3answers
113 views

Does aircraft/ATC get any information directly from a weather balloon?

We have been launching radiosonde (a meteorological instrument containing GPS and other sensors to measure meteorological variables attached to a balloon filled with Hydrogen) to obtain meteorological ...
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2answers
121 views

Is there a legal requirement for planes to start from the ground?

If I could somehow store a plane inside another plane, would I be allowed to start the second plane somewhere in the air? Maybe different countries have different laws for this kind of aviation? I ...
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1answer
144 views

What altitude restrictions are there in Class C airspace?

So if I'm flying into a Class C airspace, I call approach and I establish radio contact and tell them I want to land, then I enter the airspace. If I'm still talking to approach and haven't been ...
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2answers
83 views

Descend via STAR, after getting crossing restriction previously

The ATC issues "Cross BHAWK at FL240" initially. After few minutes, the ATC instructs "Descend Via FYTTE5 arrival". Should we comply with the crossing restriction at BHAWK, or the ...
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2answers
5k views

Should I contact ATC if I don't have a transponder?

The flight school I usually rent from is under the shelf of class C airspace. If you're going out to a practice area, the standard procedure is to contact approach control and get a squawk code, so ...
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1answer
50 views

Is there a benefit to representing a SID/STAR in 3D?

There are several examples of 2D representations of SIDs and STARs on the web. I have yet to encounter a 3D representation of one. Does one currently exist? Are there any benefits of representing a ...
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2answers
131 views

What does “Request Boxing Vectors” means?

I have heard on a request from a pilot: "- Request boxing vectors!" What's the meaning of this non standard phraseology?
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2answers
122 views

Are being +30 and having a Ph.D. considered as barriers to become an air traffic controller in NAV CANADA? [closed]

The requirements to apply to the training phase of NAV CANADA (to become an air traffic controller) are listed here, in which no upper bound corresponding to the age and the education level of a ...
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2answers
5k views

How can this kind of confusion about taxi instructions occur?

A few days ago, I (a student pilot on a solo) had landed on runway 9 for a full stop taxi back. The taxi instructions were "alpha to 27 remain on this frequency". I missed some words in between these ...
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2answers
13k views

Why is a Cessna C560 circling Washington DC during the protests?

Right now according to FlightRadar24 there is a Cessna C560 circling Washington DC. It took off from Manassas Regional Airport and has been circling ever since. No other identification is listed. ...
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3answers
750 views

How does ATC direct aircraft on ground from the parking to the runway?

For medium size airports, ATC will direct aircraft with a single message like this "Taxi to runway 29 via Papa, Sierra". I was wondering if it was the same thing for bigger airports (like ...
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3answers
2k views

What does “Raven” [phonetic] means when used by ATC?

What is the meaning of "Raven" [phonetic] heard in use at Reagan National Airport? Most recently heard: The ATC will say "proceed direct raven" or "direct raven maintain" whatever altitude; or "...
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2answers
188 views

How would fighter jets make contact with a previously hijacked aircraft?

For example, a plane is hijacked but civilians regain control, they know how to change the plane's frequency but no procdeures - i.e. dont know guard frequencies. There are fighter jets alongside who ...
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2answers
176 views

How to Tell Flight Following You Want to Change Your Destination?

I want to fly the LAX Coastal VFR Transition Route northbound, and I want to do the whole thing with flight following. When I get near Van Nuys airport, I'll need to tell ATC (flight following) that ...
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1answer
92 views

How should I make a downwind departure from a towered airport?

I'll be departing from a towered (Class D) airport, and I need to make a left downwind departure and turn right off the downwind leg to exit the pattern. I've done this with a CFI, and I've also made ...
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61 views

Where can we use conditional clearance?

Besides Line up conditional clearance in a PREPARATION FOR TAKE-OFF situation, where else can we use conditional clearance (on an apron, taxiway, etc.)?
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2answers
126 views

What are the other clearance and instructions that must be read back? [duplicate]

The following items must always be read back: ATC route clearances; clearances and instructions to enter, land on, take off from, hold short of, cross or backtrack on any runway; and runway-in-use, ...
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1answer
57 views

Transition level has to be readback and what about transition altitude? is it also required to be readback by the pilot? [closed]

These are the readback requirements, source by https://www.skybrary.aero/index.php/Read-back_or_Hear-back a) ATC route clearances; b) clearances and instructions to enter, land on, take off from, ...
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3answers
186 views

Can anybody give an example about Clearance Expiry Time?

Clearance content is included: callsign, flight path, clearance border(destination aerodrome, available report point, controlled airspace border), flight level along the route or for a specific part ...
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2answers
5k views

Do I need explicit clearance to taxi on an inactive runway?

I received taxi instructions from ground at a class D airport in the USA as follows (I was at ramp): Taxi to runway 04, Right on Bravo, left on 10, right on Alpha (no explicit clearance or hold short ...
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1answer
56 views

What is the meaning of a flashing white signalling light in Aldis Lamp?

In my source, I couldn't understand the flashing white description. I translate for you; in the last row: 'çakarlı beyaz: flashing white' says that: Leave the manoeuvering area in accordance with ...
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1answer
53 views

Help to understand a specific SNOWTAM

My questions are: According to the article ''H''; what about the other runway/runways when I want to add extra info other runway/runways too; there is just one runway in here? According to the ...
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2answers
249 views

Why would different crossing runways at one airport be on different radio frequencies?

In this answer the following image was included which shows that control of two crossing runways are on different radio frequencies. Source: AIP Denmark EK AD 2 - EKCH - AREA OF RESPONSIBILITY It ...
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3answers
1k views

When does ATC contact the pilot for a frequency change?

Usually, when the aircraft enters a new flight information region for example, ATC will ask the pilot to enter a new frequency. I'm curious about when they do. Is there a rule about it (in an IFR ...
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2answers
3k views

How do I know how to describe my position on the airport when I contact ATC?

When asking for taxi clearance, a pilot must include his location when contacting ATC. However, I'm not quite sure exactly how to state your position in the airport. For example, I've heard some ...
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3answers
13k views

Why is this airplane flying in circles randomly?

This G650 has been flying around for over an hour now. Is this somebody with a mechanical problem who is burning fuel before returning to their airport of origin?
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2answers
203 views

How are pilots prepared for a go around on a simultaneous converging approach when the “converging chart” is not published?

Source: adsbexchange.com Today I learned that at KPHL (Philadelphia) simultaneous converging approaches are used. (Note that AAL is faster, which narrowed down the time gap by the time it landed.) ...
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1answer
236 views

Are old illegal air transfer methods still feasible today? [closed]

A retired soldier told me he used to know people who smuggled jewelries, hard drugs, guns and even people from middle eastern countries to Europe, specifically, Germany! Via planes! In fact, he said ...
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1answer
152 views

Why can’t a single-fan-beam radar determine the elevation angles of its primary targets?

A while back, I asked about the reason for one of the well-known limitations of most ATC primary radars (their inability to determine target altitudes).1 The answers boiled down to “single-beam fan-...
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2answers
257 views

How do people smuggle stuff with private airplanes? [closed]

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. Love it or hate ...
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1answer
714 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 ...
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2answers
313 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,...
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1answer
128 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 ...
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0answers
53 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 ...
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1answer
147 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 ...
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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
143 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 ...
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1answer
180 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?
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2answers
170 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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2answers
293 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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2answers
190 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 ...
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2answers
655 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?
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2answers
168 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
227 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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3answers
353 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 ...
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0answers
79 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 ...
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2answers
281 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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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 ...
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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 ...

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