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.

Filter by
Sorted by
Tagged with
0
votes
0answers
20 views

What is “ACO transition”?

In MSFS2020, I frequently hear terms like "Cleared to ACO transition" and I can set an ACO in my flight plan. What exactly is an ACO and its obviously not a unique point because they seem ...
2
votes
2answers
318 views

Are all IFR flights assigned squawk codes in US controlled airspace?

In the US, all IFR aircraft need a clearance to be in class A, B, C, D, and E airspace. Does this mean that all aircraft with clearances need to be assigned squawk codes by ATC when they enter?
9
votes
2answers
2k views

How does a U.S. military air traffic controller become a civilian air traffic controller?

If a person is working as a United States military air traffic controller and then they get discharged, do they have to go through additional training and tests to work as a United States civilian air ...
5
votes
2answers
695 views

What, if any, are the rules on ATC politeness?

There are plenty of recordings available of ATCs acting impolite, in the linked video, the pilot says he will file a report about the conduct of the ATC. Would this actually result in any ...
48
votes
7answers
10k views

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 ...
3
votes
1answer
290 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 ...
9
votes
3answers
839 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. ...
0
votes
2answers
256 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?
0
votes
1answer
140 views

In the US, in actual practice, workload permitting, will ARTC facilities grant SVFR clearance for surface-level Class E “extensions” (E4 airspace)?

In the US, in actual practice, workload permitting, will ARTC Centers and Approach Control facilities grant clearance for Special VFR operations in surface-level Class E "extensions" (E4 ...
30
votes
3answers
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, ...
8
votes
2answers
296 views

Is there a serious effort underway to move from a highways-in-the-sky approach to a mesh-network approach?

As far as I'm aware, there are certain "motorways" or corridors which air traffic uses, rather than navigating more directly from origin to destination. I remember listening to a documentary which ...
6
votes
1answer
392 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) ...
22
votes
2answers
4k views

Is it bad practice to say my callsign first in a transmission to ATC?

Usually ATC is saying the callsign of the plane he speaks with first and then starts with the actual transmission. Pilots usually say their transmission first and end it with their callsign. However, ...
14
votes
4answers
875 views

Where can the airspace boundary coordinates for Fayetteville TRACON be found?

I would like a map depicting the airspace owned by Fayetteville TRACON that includes lat/long coordinates (i.e. not just a cartoon-y outline with no information). Ideally, I'd like to find a site ...
4
votes
2answers
448 views

What is “Weather and Chaff” information provided to pilots by ATC?

This one appears in an entry under "Additional Services" in the FAA Pilot/Controller Glossary and claims that ATC provides a wide range of additional services to pilots, including "...
7
votes
2answers
2k 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, ...
1
vote
2answers
2k views

Can a pilot amend a flight plan in-flight?

Which information pilot can change in-flight? For example: Altitude. Ask to climb higher? V to Z. VFR rules to IFR (VFR to IFR)?
5
votes
2answers
823 views

What happens if I activate VFR flight plan later than filed ETD?

Let's say I filed a VFR flight plan with ETD (1500), en route (2 hours), ETA (1700) If I depart and activate the plan at 1600, now the new ETA will be 1800 which is an hour later the the filed ETA. ...
1
vote
3answers
107 views

Are mode C altitude returns valid for aircraft separation?

According to FAA JO 7110.65 5-12-8 'Validation of MODE C READOUT', Mode C is valid if there is less than 300 feet deviation from the pilot reported altitude. If ATC instruct 'A' aircraft to maintain 5,...
13
votes
3answers
6k views

Why are cockpit alarms still so distracting and unable to be silenced?

I'm watching video RV 10 N783V My 1st Emergency At 8:45 a stall alarm goes off and is a horrible piercing whistle. Why? Surely the pilot has enough distractions without also being deafened while ...
14
votes
3answers
24k views

What do I request when contacting tower of an airspace I'm transiting over?

I'm a student pilot who has just begun dual cross-country with my instructor. However, he has not been explicit when I've asked him about radio comm with tower/approach/radio during the flight. If I ...
8
votes
3answers
979 views

What kind of tools are available to an ATC handling traffic in the terminal airspace to predict aircraft trajectories?

I know that the ATC has feedback on the current position of the aircraft via Radar and ADS-B data. However, are there any tools to forecast future trajectories. For example, say an aircraft is ...
21
votes
3answers
3k views

Was the Shuttle Orbiter in contact with air traffic control during its descent & landing?

The Shuttle Orbiter crew were obviously in contact with ground control in Houston during their landing, but were they also in contact with any air traffic control, especially once they reached US ...
2
votes
1answer
206 views

Why didn’t AFR4590 use heavy in its call sign?

https://aviation-safety.net/investigation/cvr/transcripts/cvr_af4590.php shows that AFR4590 didn’t use heavy in its call sign even though Concorde had a MTOW greater than 300,000 lbs. Unlike BAW, AFR ...
12
votes
3answers
2k views

How can a sUAS operator contact ATC/identify themselves when contacting ATC?

In a comment, abelenky offered some words of wisdom which I personally agree with regarding sUAS ops near a surface Class C: When in doubt or close, call Tower and state your intentions. They'll ...
7
votes
3answers
3k views

How realistic is atc-sim.com as an ATC simulator?

I was wondering how realistic https://atc-sim.com/ is. I only play for fun, not for training, but I want to play as accurately as possible.
0
votes
3answers
172 views

In the US, are there any operational control towers located in surface-level Class E airspace or in Class G airspace?

(This question pertains to the airspace of the United States.) FAR 91.126 gives some general rules for operating at or near airports in Class G airspace, and FAR 91.127 gives some general rules for ...
0
votes
3answers
242 views

How do you request a 3D block of airspace to to freely maneuver your privately owned military jet?

Referring to this How can you fly your own military jet in terms of altitude and acrobatics? how can you request a block of airspace to freely maneuver your private military jet (barrel rolls, ...
20
votes
3answers
16k views

Does Flight Following automatically include permission to fly through class C or D airspace?

The situation is as following - I requested flight following at approach, got a squawk and instructed to maintain VFR with heading and altitude at my discretion. My route is through class D and class ...
5
votes
3answers
1k views

How should a Traffic Control Tower notify aircraft that their frequency just changed?

What is the policy for ATC towers to notify aircraft the frequency they broadcast and monitor on has changed? How do they do it, if radio isn't available (because they just changed their frequency)?
11
votes
4answers
2k views

How would ATC try to establish contact with a VFR craft?

Example: I'm in a 172 tailed N1234A, on a pleasure hop between Hicks Field and Addison, circling around DFW International to the north, flying at 1500ft within DFW's Mode C veil under VFR (so I'm ...
12
votes
4answers
36k views

On a chart, how can I find the frequency for flight following?

Is there a map I can refer to in order to pick up the correct frequency for VFR flight following while enroute? I know I can request a frequency from ATC as I depart, but what if I want to fly around ...
2
votes
1answer
272 views

How do you figure out which frequency to contact approach on for a class bravo transition?

I'm about 20 hours into my PPL, so maybe I just haven't gotten to this part yet. Suppose I'm flying KFCM to KRNH and I want to request clearance across the bravo. How do I figure out which approach ...
79
votes
4answers
14k views

Why do control towers have tilted glass panels?

Almost all control towers I've seen have tilted glass panels: Amsterdam-Schiphol tower (EHAM), source. What is the reason behind this choice? How is the tilt angle determined?
11
votes
1answer
4k views

Can general aviation use UHF to contact ATC?

In the US, if a civil aircraft has a UHF radio are there any regulations against it performing ATC communication on the UHF bands? Pointers to the appropriate CFR's would be appreciated. This ...
3
votes
2answers
506 views

What are the meanings of these terms used in ATC ground communications?

Regarding ATC ground communications, what/who are the following callees? Are these aircraft, or vehicles, or people? [Airline name] maintenance [Airline name] tug [Airline name] mechanic
3
votes
2answers
178 views

Is there any current and/or upcoming technology that alerts Air Traffic Controllers in case of loss of aircraft separation?

Currently doing an assignment and it to analyse an accident where older atc systems could have been at fault. In 1995 there was an incident where two aircraft came closer than the then current ...
5
votes
4answers
2k views

How should I request flight following when I'm not taking a direct route to my destination?

I want to plan a flight from KMSN - KDAY. My plan avoids the ORD airspace as much as possible, so something like: KMSN - JVL - KARR - JOT - EON - KRZL - OKK - MIE - KDAY What would be the ...
7
votes
2answers
2k views

If an airliner turns back midway, how is the route planned?

There's several incidents of "flights to nowhere", e.g. https://onemileatatime.com/klm-787-nine-hour-flight-to-nowhere/ After a pilot decides to turn back, how is this handled from a routing/...
1
vote
4answers
115 views

Can “Center” provide VFR flight following?

Whenever I've requested VFR flight following, I've always requested it from So Cal Approach/Departure because I'm usually flying within their reach. If I'm flying outside the reach of So Cal Approach ...
0
votes
1answer
153 views

How does ATC handle a controller with psychological trauma?

I've finally got around to watching Breaking Bad, (spoiler alert) in the last episode of season 2 a bereaved ATC controller accidentally causes a mid-air collision. I am not asking whether the actual ...
0
votes
2answers
4k views

What's is the difference among ECL, CFL, RFL, TFL messages in ATM?

These are several messages to provide a change level during air navigation. Some are sent or requested by the pilot, others by the air traffic controllers, etc. There are subtle differences. Could ...
45
votes
6answers
18k views

How do pilots identify the taxi path to the runway?

When the aircraft is readying to taxi, the ATC asks them to proceed to some runway number, say runway 09. In big airports, how do the pilots identify the correct path to their runway? Does the ATC ...
34
votes
5answers
11k views

Why are visual approaches (in the US) preferred by US pilots, but not European pilots?

I listen to ATC a lot and often hear airliners cleared for visual approaches in the USA. Interestingly, if it's European airliner pilots they deny the visual approach and request ILS even if they are ...
9
votes
2answers
4k views

What is the maximum interception angle for ILS when on radar vectoring?

Some time ago when I was designing the approach radar module for the ATC simulator for HCAA, the spec was very clear that the limit had to be placed at 45 degrees. So I took it for granted and I didn'...
5
votes
3answers
3k views

Can you file an open-ended IFR flight plan?

Say you are doing an instrument training flight with a CFII and you are practicing IFR navigation. You will be taking off and returning to the same airport, but you are not certain exactly where your ...
1
vote
5answers
496 views

Phoenix Area Helicopter ATC: What is “Hee-lah” (Gila?) One, and what is the 101 transition?

I've been listening to the Phoenix Tower LiveATC feed, and I hear references to "Hee-lah" (Gila?) One and the 101 transition with helicopters (see audio files below): Angel-Five TV-3 TV-15 Does ...
25
votes
1answer
5k views
3
votes
4answers
151 views

Can you receive traffic advisories without a specific destination or intention?

I’m wondering if it is possible to call up the local approach facility and ask them for flight following even if you are just doing sightseeing or something. Do you need to tell them your intended ...
6
votes
2answers
834 views

Is there a “Quid Pro Quo” of flight following?

I like to use flight following whenever possible because who wouldn't want traffic pointed out to them for free? But just as the controllers are doing me a favor, they sometimes ask me to do them a ...

1
2 3 4 5
21