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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1answer
68 views

What is the definition of “airport boundary”?

While flying in to KBTR in a helicopter, I called tower and stated “10 west, landing south ramp with information Mike”. They responded “proceed to the airport boundary”. When I was closer I got the ...
-5
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0answers
54 views

what shall the ATC do? [on hold]

what shall the air traffic controller do to Manage traffic in case of change in the operational status of navigational systems??? ( mention the related Document ) please
2
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2answers
138 views

What is the proper ICAO phraseology to activate a flight plan?

OK, so you have a flight plan filed (over internet, phone, company or however), go to the aircraft and get in the cockpit. So you call the controller and request IFR or VFR as appropriate. What is ...
3
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0answers
61 views

What is the FAA regulation for the 3 mile / 1,000' separation for a commercial airliner? [duplicate]

I need help finding the Number/Citation for the FAA regulation/order that states commercial airliner separation should usually be at least 3 miles laterally, or 1,000 feet vertically. I cannot find ...
7
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1answer
195 views

What is a “KALP114A” ATC regulation?

My flight (in Spain) was delayed for 6h and after I submitted the claim the airline worker answered me that it was delayed due to KALP114A regulations imposed by ATC, but I didn't find any info, that ...
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0answers
114 views

Are there any cases on record of an aircraft crashing into an occupied air traffic control tower?

Aircraft frequently1 crash, or come close to crashing, from almost every cause imaginable, on or near airports, these being places where aircraft of all sizes take off and land and sleep with many ...
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2answers
59 views

What are the Area Control Center (ACC) frequencies for Germany?

I'm looking for the frequencies of all Area Control Centers (ACC) in Germany. What are they, or where are they published?
3
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2answers
83 views

What is the difference between MEL and CDL?

I know the MEL and CDL are the minimum equipment list is provided by the manufacturer, if component missing or damaged means the aircraft must pass the MEL and CDL, I need some suggestions how it was ...
6
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1answer
85 views

How universal are air traffic control systems, training and practices?

A commercial pilot, especially in the airline industry, is in a role that is essentially the same as that of a pilot who is employed and was trained in just about any other part of the world. Does ...
4
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1answer
342 views

Are requests for an emergency landing ever refused?

Under what circumstances might it happen that a pilot's request to make an emergency landing is refused? Is such a thing known to have occurred?
10
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2answers
456 views

Why is air traffic control done manually by humans?

I'm not a pilot but have a software developer background, so forgive my aviation naivety. From what I understand there have been numerous issues and almost-issues relating to human air traffic ...
9
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1answer
357 views

Is the taxi route omitted in low visibility (LVP)?

This video shows an auto land into Schiphol during bad weather / LVP (Low Visibility Procedures). After reporting vacated, the ATC instruction is quite short (around 2:45). Simply the gate number. (I'...
2
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2answers
110 views

Does ICAO allow continued flight in RVSM airspace after a transponder failure?

If a civil aircraft's transponder fails in RVSM airspace, can it still be allowed to fly in RVSM according to ICAO? And could it be allowed to fly in class A airspace, according to ICAO?
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2answers
2k views

Do seaplanes need to get clearance for takeoff?

Do seaplanes need to get clearance for takeoff? Do they have ATC? How do seaplanes get clearance to takeoff?
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3answers
144 views

Why is it necessary to fly in visual conditions to certain unmanned airstrips?

I have come across certain unmanned airstrips where only VFR flight is allowed not IFR? I wonder what can be the possible reasons for that?
4
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1answer
170 views

Does ATC clear IFR helicopters for a visual approach if landing at a helipad on a high-rise?

I'm guessing that most helipads on downtown high rises don't have any instrument approaches. If a helicopter is on an IFR to a helipad without any instrument approaches, does ATC just clear them for ...
9
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2answers
306 views

How many aircraft does an ATC controller usually handle at the same time?

My question relates to the question What is the maximum number of planes a controller can control?, which asks about the maximum limit. One comment indicated 35 aircraft per hour for en-route segment. ...
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1answer
42 views

In actual practice, do ARTC Center personnel generally follow the rule that a SVFR clearance may be granted in E2 airspace but not E4 airspace? (US)

In actual practice, in the US, do ARTC Center personnel generally follow the rule that a SVFR clearance may be granted in E2 airspace ("surface areas designated for an airport") but not E4 airspace ("...
6
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2answers
239 views

How do messages get from the destination airport to a pilot?

A captain waiting in her airliner for take-off at an airport might inform her passengers: We'll be waiting another ten minutes before we're able to take off, as traffic is very busy at [destination]...
57
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3answers
14k views

Did we get closer to another plane than we were supposed to, or was the pilot just protecting our delicate sensibilities?

Yesterday, April 28, 2019, I was flying on Alaska flight 557 from LAX to PDX. About an hour into the flight (near the California/Oregon border) I was looking out the window and saw a jet travelling ...
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1answer
225 views

Is it Legal to listen to Air Traffic Control Frequencies in the USA on a computer for entertainment?

like listening to scanners an radio frequencies for entertainment and i make it a game because i use a online flight tracker and try to find that aircraft. Is it legal?
3
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1answer
60 views

Why does V165 have two different MEAs over the same route section?

Why does V165 have two distinct MEAs which vary by a large factor (apart from the 180$^{\circ}$ rule of altitudes) considering they would be clearing the same obstacles and receiving signals from the ...
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0answers
37 views

How do you know when you are entering different air spaces? [duplicate]

I've been looking at VFR Sectionals and learning about all the different air spaces, but my what I don't know is how, when flying, do you know you're approaching an air space that requires clearance ...
4
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4answers
351 views

An appropriate way to practice ATC communications

I'm a PPL trainee and I'm looking for a way to improve my radio communication. https://www.liveatc.net/ is a great way to practice but I can't fully understand the conversation between the unit and ...
3
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1answer
116 views

Are ATC assigned altitudes temperature compensated?

For the purposes of commercial air traffic operating in a terminal/approach space area that has temperature compensation applied to waypoints in the active flight plan, if ATC assigns an altitude, ...
14
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3answers
5k views

How long after the last departure shall the airport stay open for an emergency return?

For how long after the last take off for that day, will an airport stay open for emergency return of that last departed aircraft? Where can I find that recommendation? To clarify: an airport needs to ...
4
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2answers
107 views

How (and when) does Heathrow alternate arrival paths?

I've noticed that flights over Richmond (particularly arrivals) seem to have significantly reduced over the last few weeks. This is based on looking at Flightradar, as well as listening to the noise ...
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1answer
145 views

Are the nearby airplanes cleared of the sky when launching Falcon Heavy? [duplicate]

I was checking Flightradar24 when launch occurred and didn't see any difference. Also, 3 boosters landed back successfully. I assume the sky has to be clear of airplanes to avoid any potential ...
8
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5answers
2k views

How is radar separation assured between primary and secondary targets?

Air traffic control radars come in two flavours, with most ATC centers using both and displaying the output of both on a single screen: Primary surveillance radar (PSR) is a true radar system, which ...
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0answers
26 views

In Canada what categories is air traffic control broken down into? [duplicate]

What are the sub-sections of air traffic control in Canada, and what does each sub section perform? I know a couple of basics like approach control, ground control, and terminal control, but I don't ...
10
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3answers
3k views

Do airline pilots ever risk not hearing communication directed to them specifically, from traffic controllers?

I gather pilots communicate regularly with air traffic controllers within air traffic controllers' jurisdiction or airspace as they enter the space, during their time in that space and as they leave. ...
1
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1answer
68 views

How are change-overs between regional air traffic patterns communicated? [duplicate]

The airport near me that has two major landing/takeoff patterns part of a large regional air traffic control plan involving other major international airports (SFO/OAK/SJC) The duplicate-cited ...
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1answer
186 views

What does the ATC term “a company traffic” mean? [duplicate]

During my flight training I often heard the term "a company traffic" in radio calls from the ATC like: N123AB a company traffic is joining downwind runway 24 ...
2
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1answer
239 views

Why are tugs the least priority when talking to ground?

I was listening to this ATC conversation (3:10) and wondering: Why are tugs the least priority when talking to ground? I am thinking that some tugs might be towing aircraft that need to depart. Why ...
3
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1answer
109 views

What benefits does Automatic Dependent Surveillance bring to continental ATC over Mode S?

In particular, to the extent that there are mandates for it in USA and Europe? I checked various posts here and official descriptions (e.g., faa.gov), but I can't figure out the following: For ...
3
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3answers
247 views

Is it normal to instruct an aircraft to squawk VFR if it goes around on an IFR visual approach? [closed]

A pilot is flying IFR on a visual approach to a towered airport. He elects to go around due to gusting winds and notifies the tower. The tower then asks his intentions. He replies that he would still ...
13
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2answers
394 views

How late can a landing clearance be given?

I regularly fly VFR in an (EASA-) airport where the tower is sometimes rather busy and the frequency full which led a few times to me receiving landing clearances as late as 10-20ft AGL above the ...
2
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0answers
67 views

How are rotorcraft and/or VTOL aircraft handled once they get to an airport? [duplicate]

I am asking this from an ATC perspective ... my experience as a pilot is that they would make helicopters fly the same approach but once they got the airport environment in site where do they go? Taxi ...
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2answers
782 views

Why is it the ATC recording of Ethiopian Airlines Flight 302 is not yet available online?

I understand sites like liveatc.net constantly stream the conversation between the ATC and pilots. Why is it that there's no such recording for Ethiopian Airlines Flight 302 yet?
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2answers
193 views

“Report a 3 mile right base” - where is it measured from? [duplicate]

At which position should you report to ATC?
2
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1answer
119 views

How to correctly interpret the taxi procedures in ICAO Doc 4444?

I have a question to ICAO Doc4444, Chapter 12.3.4.7, Taxi procedures for departure, c). My question is how to interpret the following, knowing that words in parentheses are mandatory, and words in ...
5
votes
1answer
240 views

What are the pros and cons of practising figure-eight landings on perpendicular runways?

This is just a gee-whiz question, I have no intention of doing this nor am I trying to get anyone's blessing on this. Part of remaining current to legally take passengers up in a plane is having 3 ...
2
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2answers
58 views

Is mode C required for CVFR in Canadian Class B airspace?

(This is in reference to Canadian Airspace) Can you fly in Class B airspace under CVFR (Controlled Visual Flight Rules) without a transponder with Mode c (altitude encoding) capability? To enter ...
0
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1answer
172 views

In-game Air Traffic Control questions [closed]

I have been making an AI ATC for a game I have been writing. The channel is mostly dead air but occasionally you can hear some chatter: http://reskin.us:8081/stream I am a former airline pilot and a ...
3
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1answer
153 views

Is navigation around thunderheads done at the pilot's discretion?

It's my understanding that if a pilot is flying over an ocean or otherwise uncontrolled airspace and they encounter a cumulonimbus, they navigate around it at their discretion. How does this happen ...
4
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2answers
399 views

How do I pick the right ATC channel to listen to my flight?

I'm trying to listen to my flight's ATC communications (flying United out of SFO). What is the difference between ramp, ground, and departure channels? Ground and departure have multiple frequencies, ...
0
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2answers
84 views

How does the traffic pattern at a large airport affect nearby, smaller airports?

Do the landing and takeoff directions for a smaller airport (GA and bizjet traffic) change when the traffic direction at a nearby large airport changes? Specifically, I'm wondering about how traffic ...
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2answers
351 views

Can a VFR flight follow an IFR route?

Can a VFR flight follow the same route of an approved IFR route (such as those found on Forefight Route Adviser) using waypoints and Victor airways?
19
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2answers
4k views

Should you blow through the final approach course if the ATC forgot about you? [duplicate]

So you were being vectored for the final approach course (ILS/RNAV/whatever) and the controller forgot about you for some reason (busy). Assume you called them and they were not replying. Also assume ...
4
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1answer
553 views

What is the difference between a ground controller and an air traffic controller? [duplicate]

In terms of their roles at an airport. I'm designing a system that would inform its users if there is space on the runway that a pilot could use to land or take off, when there is an obstacle on the ...