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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What are the helicopter frequencies on the LA heli charts used for?

The LA heli charts list frequencies for the different heli routes in LA: Are the frequencies used as a "CTAF" for helicopters, or is there an air traffic controller on that frequency telling ...
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185 views

Identify this Chicago aircraft incident involving loss of control

Many years ago I listened to an ATC tape of an aviation incident involving a commercial aircraft that had some type of control loss, I think in Chicago. After several attempts to set up for an ...
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134 views

What is black routing and red routing?

In a meeting with aviation experts, the terms black routing and red routing were discussed. What are they? From the discussions I was able to put together that either the TMU (Traffic Management Unit) ...
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215 views

Where can I find US ARTCC sector boundary coordinates?

For an academic purpose, I would like to map US airspace using GIS tools with coordinates. I found the airspace boundary coordinates from the eNASR, but no luck with the sector boundaries. Any ...
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429 views

What regulations support European vs USA traffic pattern entry?

While reading another Stack Exchange question I became aware that Europe approves several more "standard" (for training purposes only, but encapsulates European maneuvers) traffic pattern entries ...
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151 views

Is “margin final” an ATC instruction in USA?

I was south-east of the airport and the active runway was 24. The ATC said, "Make straight in and remain south." And then he said, "Margin final, cleared [to] land." What is margin final? I'm an ...
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1answer
225 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 ...
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129 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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160 views

pre-departure sequence, how to increase number of flights in the sequence

If I have number of flights ready to depart (valid TOBT) if I want to increase the number of flights in the queue by adding flights in the gaps between any 2 flights whats the minimum seperation that ...
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Why does airnav list frequencies for some STARs on the airport info page?

I was on airnav.com and looked up the info for KIWA. Why does airnav list frequencies for the arrivals (STARs) that serve an airport? Does each frequency correspond to a certain TRACON sector?
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561 views

What's the minimum legal height in Europe for a low pass at an airport?

Does anyone know in which document I can find the legal minimum height for a low pass at an airport, assuming the pass has been approved by ATC? I have been discussing this topic a lot with several ...
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73 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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171 views

What is DPI? How is it Useful? And How does it work?

I have heard of DPI (departure planning information) status for a flight. I wanted to know what is this Status for? How is it computed or determined? What are the different status for it if any and ...
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90 views

What does it mean when a track “straddles north”?

Have heard a couple controllers taking note of a track that "straddles north". What do they mean? According to Google, the definition of the verb straddle is to extend across or be situated on both ...
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303 views

What is the ATFM Project BOBCAT and why is it important?

Aerothai, the ANSP of Thailand, runs an ATFM Project called BOBCAT (Bay of Bengal Cooperative Air Traffic Flow Management System). Why is it so important? And why is an ASNP from Thailand running a ...