I think it's all public broadcasts and if you have a radio receiver close enough to the tower you can hear it. liveatc.net relies on radio receivers relaying the broadcasts to them, similar to how ADSB aggregators work. And liveatc just happens to have no relays at Copenhagen airport. They do have coverage at Oslo airport though, for example.The US makes ATC recordings available to the public, the UK doesn't, not sure about Denmark
Personally, I believe that the known authorities present, the Police, the Police Intelligence Service, the military and perhaps more, have stood and watched each other's drones in the large airport area.External Quote:
Therefore, data on both air traffic and shipping is being examined
The mystery, for me, is how school(taxi) plane OY-CDT got ATC permission for the, in my opinion, risky "Low-Pass" maneuver.
I don't see how a touch-and-go landing could have been approved on that runway (12 on approach from NW, 30 on approach from SE). On the first pass, lined up with Runway 12, at 18:17, there was an ITA plane on taxiway B, right on the edge of the runway, and a Finnair plane on taxiway A that had only just cleared it.Especially the 2nd pass by this plane seems unlikely to have been an approved landing attempt, or even a touch-and-go landing for training purposes as I've seen suggested elsewhere.
"This is a typical pattern for flight instruction. Its called "touch and go". Both night and day in between commercial flights they allow student pilots to practice."
Interesting it appears the UK actually does make it illegal. liveatc shows a specific banner for Heathrow saying they're not allowed to host that feed.The US makes ATC recordings available to the public, the UK doesn't, not sure about Denmark
I do wonder in all of these cases of "drones at [location]" how whoever is in charge establishes situational awareness during the event?
You all are doing a good job of trying to reconstruct something from recordings, but these stories are full of "drones were seen" and "police said" and it's not at all clear if officers saw things, if they're only passing along civilian reports (there was a Copenhagen couple who called in about seeing a "large drone" from their apartment), or if anyone at the airport detected anything. Did the police call the tower to alert them to the sightings and did that drive events? The airport spokeswoman said there were "two different drone sightings," but not when or by whom. Who saw "two or three large drones" for four hours and how did they know they weren't nearby aircraft?
I'm a little suspicious that the airport reopening at 12:30 a.m. followed a length of time during which apparently no lights in the sky were reported, which could just be because no airplanes were flying late at night to be mistaken as drones.
It's all very fuzzy for what's turned into an international incident. And it seems like it would be hard for the Danish government to acknowledge any overreaction at this point after accusing Russia of flying giant drones (with navigation lights) over their capital city.
I made this video yesterday, actually before I saw this thread, to see if people had some answers, but it's now really coming out to a broad audience, so metabunk is better I guessI don't see how a touch-and-go landing could have been approved on that runway (12 on approach from NW, 30 on approach from SE). On the first pass, lined up with Runway 12, at 18:17, there was an ITA plane on taxiway B, right on the edge of the runway, and a Finnair plane on taxiway A that had only just cleared it.
If this track is accurate then it passed virtually over the top of stationary ITA flight 1977 at just 350 feet, which surely counts as a near miss?
18:17:00
View attachment 84357
18:17:10
View attachment 84358
On the second pass, from the SE, it passed over two planes at a height of 400ft: the ITA one again, and easyJet 1291 which was just behind it.
18:19:30
View attachment 84360
Surely this sort of thing isn't normally approved at a major international airport? On that last pass the easyJet plane was literally on the runway if the ADSB Exchange track is accurate!
I live close to a general aviation airport. I often watch the student pilots doing touch-and-go landings (there's even a cafe perfectly sited for this). But they don't do it with commercial flights crossing the runway!
External Quote:...two or three large drones were spotted near the transport hub... Danish police said the drones came from different directions and their lights were turning on and off.
That sounds quite remarkable but nobody apparently managed to film them?External Quote:...it was 3-4 objects that was glowing or flickering blue and white, 100% ball shaped and about 5x5 meters or larger. No sound at all and they did not move like that.
The objects completely disapeared right into thin air too - this before appearing again in Oslo and briefly in Stockholm.
...
They came from nowhere, made no sound, shaped like giant footballs - blue/white lights all around, flickering on and off (when off they were completely invisible) .
I've quoted a professional pilot above who said that CAT do this regularly for sight-seeing, and it is obviously always coordinated with the airport and therefore safe. This was not a unique event, and there's nothing on FR24 that indicates that it was in any way dangerous.The mystery, for me, is how school(taxi) plane OY-CDT got ATC permission for the, in my opinion, risky "Low-Pass" maneuver.
No, it doesn't count as a near miss. There's no danger of collision. You wouldn't say it was a near miss if they flew at 350 feet over a house, either.If this track is accurate then it passed virtually over the top of stationary ITA flight 1977 at just 350 feet, which surely counts as a near miss?
It's the same every time and everywhere.There are lots of reports about the drones but not a single video that I have seen that matches what supposedly was going on for several hours.
https://news.sky.com/story/copenhagen-drone-incursion-fits-russian-pattern-danish-pm-says-13436745
External Quote:...two or three large drones were spotted near the transport hub... Danish police said the drones came from different directions and their lights were turning on and off.
www. reddit. com/r/UFOs/comments/1no2uxb/comment/nfpks2n/ (broken link as the auto embedding was messing up the formatting)
That sounds quite remarkable but nobody apparently managed to film them?External Quote:...it was 3-4 objects that was glowing or flickering blue and white, 100% ball shaped and about 5x5 meters or larger. No sound at all and they did not move like that.
The objects completely disapeared right into thin air too - this before appearing again in Oslo and briefly in Stockholm.
...
They came from nowhere, made no sound, shaped like giant footballs - blue/white lights all around, flickering on and off (when off they were completely invisible) .
And at Oslo, no evidence there was ever a drone, but two people were arrested for flying a (presumably hobby) drone over a fort, which all gets added to the mythos...
Hang on, Chris is not considered a drone expert within the drone industry, seeing this comment almost made me fall off my chair!Update on twitter from Drone Expert and Airport Security Enthusiast Christopher Sharp.
It also flew the next day and today, so of cause there isn't a problem. I still find it strange though.I've quoted a professional pilot above who said that CAT do this regularly for sight-seeing, and it is obviously always coordinated with the airport and therefore safe. This was not a unique event, and there's nothing on FR24 that indicates that it was in any way dangerous.
No, it doesn't count as a near miss. There's no danger of collision. You wouldn't say it was a near miss if they flew at 350 feet over a house, either.
I've quoted a professional pilot above who said that CAT do this regularly for sight-seeing, and it is obviously always coordinated with the airport and therefore safe. This was not a unique event, and there's nothing on FR24 that indicates that it was in any way dangerous.
No, it doesn't count as a near miss. There's no danger of collision. You wouldn't say it was a near miss if they flew at 350 feet over a house, either.
It is still the same company that has the plane and they operate both taxi and pilot training, this was a training flightIncidentally, is it known that this plane is still run by Copenhagen AirTaxi? I found conflicting information online, suggesting it had been sold. It's not listed in the CAT fleet on FR24 and upthread it was suggested it was now owned by a flying school.
Incidentally the poster on PPRuNe you quote later corrected himself, clarifying that it wasn't ATC (i.e. Naviair) that spotted the drones, but they were informed by other airport staff (the "us" referred to above).https://www.pprune.org/rumours-news/668360-cph-closed-due-drone-sightings.html#post11958110
https://www.bt.dk/krimi/live-droner-over-koebenhavns-lufthavn?directpost=10224671External Quote:
Definitely not. Typical (night-VFR) sightseeing from Roskilde, entering Copenhagen airspace D via reporting point Vallensbæk, following the published route to downtown Copenhagen, with a jaunt over the airport (Copenhagen ATC is very accommodating, if traffic permits), returning to Roskilde via Vallensbæk. Aircraft belongs to well known and established Copenhagen Air Taxi. It was Copenhagen ATC which spotted the drones.
Translation by kristofera/pprune:External Quote:Morten Fruensgaard, der er driftsdirektør i Naviair, forklarede på pressemødet, at man reagerede på et 'varsel' fra lufthavnen om dronerne.
- Det er det varsel, vi reagerer på, fortalte han med henvisning til, at man derefter valgte at stoppe al trafikken ind og ud af lufthavnen.
- Det var os, der observerede dronerne og meldte det til Naviair. Vi observerede dronerne i forskellige positioner. Både her omkring klokken 20.30 og ud på aftenen. De var på forskellige områder ind over lufthavnen, tilføjede Kristoffer Plenge-Brandt, Chief Operating Officer (COO) i Københavns Lufthavne.
It seems the airport observed the drones; it seems very unlikely they'd misidentify aircraft.External Quote:Morten Fruensgaard, COO of Naviair, explained at the press conference that they reacted to a warning from the airport about the drones.
"That was the alert that we reacted to, he explained, adding that they decided to halt all traffic in and out of the airport."
"It was us that observed the drones and told Naviair. We observed the drones in different locations. Both around 20:30 and later at night. They were in different areas over the airport", added Kristoffer Plenge-Brandt, Chief Operating Officer (COO) at Copenhagen Airport.
https://www.pprune.org/rumours-news/668360-cph-closed-due-drone-sightings.html#post11958180External Quote:Thanks; I stand corrected that it was not ATC which spotted the drones. But the quotes and the track confirm that it cannot have been the TB20, which mistaken for a drone. In particular, as ATC were well aware of it, the flight was not unusual, and the sightings continued "later at night"
The problem with "drone" sightings, is the moment one is reported, if people are utilised to look at the sky at night with eyes. once told to report a drone they'll report every light in the sky, Starlink, planets, stars, planes and even cranes!There are lots of reports about the drones but not a single video that I have seen that matches what supposedly was going on for several hours.
I looked through the most recent 100 flights for this particular plane and some do fly over downtown Copenhagen, but none of them go over or even very near the Kastrup airport. Maybe others from this flight school do. Is it possible ATC did approve this flight but someone else on the ground found it surprising and called it in? From earlier descriptions it sounded like ATC was not the one who flagged there being drones, it was other airport staff. It is odd that we've seen no details at all so far about what ATC saw happening, as everything we've seen described from police or alleged eyewitnesses at the airport (like large round craft flashing blue on the runway) should have been seen in detail by ATC and have been captured on radar and cameras.I've quoted a professional pilot above who said that CAT do this regularly, and it is obviously always coordinated with the airport and therefore safe. This was not a unique event, and there's nothing on FR24 that indicates that it was in any way dangerous.
The mystery, for me, is how school(taxi) plane OY-CDT got ATC permission for the, in my opinion, risky "Low-Pass" maneuver.
In the United States, in is very common for aircraft to be routed directly over the top of an airport. In fact for many busy airports, this is the absolute safest place to route an aircraft that is transiting the airspace of a controlled airport. The typical exchange between air traffic control and an aircraft is that the pilot requests permission to transit the airspace of an airport, then the controller will approve or disapprove followed by a course and altitude. This can be negotiated, but the course will typically be nearly perpendicular to active runways and the altitude will be above the landing pattern altitude. It turns out that the aircraft landing and taking off at an airport rarely (if ever) use this space so it is safe for transiting aircraft.I've quoted a professional pilot above who said that CAT do this regularly for sight-seeing, and it is obviously always coordinated with the airport and therefore safe. This was not a unique event, and there's nothing on FR24 that indicates that it was in any way dangerous.
No, it doesn't count as a near miss. There's no danger of collision. You wouldn't say it was a near miss if they flew at 350 feet over a house, either.
That's how I perceive the situation.External Quote:Is it possible ATC did approve this flight but someone else on the ground found it surprising and called it in?
I have contacted several Danish journalists, asked them to stop their clocks to 20:20 (local) and forget about drones and investigate OY-CDT as a possible security breach, with expert statements, how often it happens, etc. That way they could perhaps avoid narrative control from their editors. One of journos, who had been in contact with the company, gave me this information "In complete confidence", I could not keep it, in my opinion this information does not harm the country's security, at most the narrative. So if I don't post anymore, the intelligence services have come for meExternal Quote:...the company with the plane says it was a training flight that was agreed with the control tower. They were allowed to make a so-called low pass...
I hate to say it, but the Danish police are often terrible amateurs!
Do you have any luck getting a reply from a Danish journalist?? I never do.That's how I perceive the situation.External Quote:Is it possible ATC did approve this flight but someone else on the ground found it surprising and called it in?
I have contacted several Danish journalists, asked them to stop their clocks to 20:20 (local) and forget about drones and investigate OY-CDT as a possible security breach, with expert statements, how often it happens, etc. That way they could perhaps avoid narrative control from their editors. One of journos, who had been in contact with the company, gave me this information "In complete confidence", I could not keep it, in my opinion this information does not harm the country's security, at most the narrative. So if I don't post anymore, the intelligence services have come for meExternal Quote:...the company with the plane says it was a training flight that was agreed with the control tower. They were allowed to make a so-called low pass...![]()
If the topic is useful to them and the request is well-substantiated, someone will occasionally bite the hook, but it is rare, a bit like competitions, the more you participate in, the bigger the chance. This journo initially refused to investigate it, and that is a good start, I thanked him for the answer and whined a little more and half an hour later I got this information, of course I was surprised.Do you have any luck getting a reply from a Danish journalist?? I never do.
I wonder if this part is Chinese whispers. There's a quote in the media that's very similar:(like large round craft flashing blue on the runway)
https://news.sky.com/story/flights-suspended-at-copenhagen-airport-after-drone-sightings-13436457External Quote:
Passenger Louise McFadzean said she was waiting at the gate about to board a flight to Heathrow when she suddenly "saw blue lights on the runway".
"We were told the plane we were due to get had been diverted to Sweden," she added.
Thanks for the info.In the United States, in is very common for aircraft to be routed directly over the top of an airport. In fact for many busy airports, this is the absolute safest place to route an aircraft that is transiting the airspace of a controlled airport. The typical exchange between air traffic control and an aircraft is that the pilot requests permission to transit the airspace of an airport, then the controller will approve or disapprove followed by a course and altitude. This can be negotiated, but the course will typically be nearly perpendicular to active runways and the altitude will be above the landing pattern altitude. It turns out that the aircraft landing and taking off at an airport rarely (if ever) use this space so it is safe for transiting aircraft.
Flying VFR (visual flight rules), pilots often use uncontrolled airports/landing strips as way points since they are easy to spot. So long as you look out for other pilots doing the same thing, flying directly over the airport above pattern altitude is very safe, no permissions needed. IIRC, even controlled airports generally have an altitude cap at which they don't care about aircraft above that height. Very busy commercial airports generally have higher caps.
I recall during one of my cross country flights while training to be a pilot, I flew directly over the top of SFO, (San Francisco International Airport). For this busy of an airspace, I was coordinating with ATC of course. This was quite some time ago, so if I were to do it again, I'd definitely do my homework to verify current procedures. I commonly overflew ONT (Ontario International Airport) in Southern California. It is a much less busy airport than SFO, yet it still has a multitude of commercial aircraft flying in and out. The tower usually had me line up with a rarely used N/S runway as a convenient and very visible path. Altitudes allowed were generally pretty low if there was only commercial traffic. The commercial traffic tends to have straight in and straight out routes, meaning they generally don't fly a pattern of downwind/crosswind/final, leaving the area across the runway(s) in use completely empty, even at a significant distance perpendicular to the runway.
https://www.dronemag.no/dansk-droneobservasjon-kan-ha-vaert-skolefly/External Quote:
Dronemagasinet has been in contact with Copenhagen Airtaxi AS, who confirm that the company's training aircraft, a Socata TB-20 Trinidad, was conducting training flights in the area at the time.
They have, upon reviewing the video footage published by NRK, explained that the lights on the aircraft in the video and circulating online match the lights on their training aircraft with registration number OY-CDT.
Agree, this is why the precise time info for photos/videos and anecdotes is so important. People may be referring to or capturing imagery of a law enforcement response to a thing, not the actual thing. This happened in NJ last December. More and more police departments have been buying quadcopter drones in recent years and using them with increased frequency, and in a few cases I saw last winter, people had recorded video they thought could be "illegal drones" which in fact were police drones that the police were using to investigate the reports of illegal drones. Creating a self-sustaining feedback loop.But it seems pretty clear she was referring to police or other emergency vehicles, not drones. As pictured here: https://presse-fotos.dk/kaempe-aktion-lukker-koebenhavns-lufthavn-alle-fly-paa-jorden/
Caption says "There are blue flashes in and around most of the airport – see more pictures below".
This is helpful info. Do you remember approximately what altitude you were allowed to fly down to when you were flying over SFO and ONT? Airport controlled airspace ceilings are usually still in the thousands (e.g. near me Boston has a 7000ft ceiling, Norwood has a 2600ft, Hanscom/Bedford has 2600ft). So at 350ft you would be low within the controlled airspace, not over the top. And 350ft is so low it'd be in the same vertical space as landing patterns (though not horizontal space, if only certain angled runways were being used for arrivals/departures, and you were flying perpendicular to those or parallel to a sufficiently differently angled runway). Maybe this kind of very low route is more common for flight schools as they are practicing approaches but not actually trying to touch down, as @Mendel said.In the United States, in is very common for aircraft to be routed directly over the top of an airport. In fact for many busy airports, this is the absolute safest place to route an aircraft that is transiting the airspace of a controlled airport. The typical exchange between air traffic control and an aircraft is that the pilot requests permission to transit the airspace of an airport, then the controller will approve or disapprove followed by a course and altitude. This can be negotiated, but the course will typically be nearly perpendicular to active runways and the altitude will be above the landing pattern altitude. It turns out that the aircraft landing and taking off at an airport rarely (if ever) use this space so it is safe for transiting aircraft.
Flying VFR (visual flight rules), pilots often use uncontrolled airports/landing strips as way points since they are easy to spot. So long as you look out for other pilots doing the same thing, flying directly over the airport above pattern altitude is very safe, no permissions needed. IIRC, even controlled airports generally have an altitude cap at which they don't care about aircraft above that height. Very busy commercial airports generally have higher caps.
I recall during one of my cross country flights while training to be a pilot, I flew directly over the top of SFO, (San Francisco International Airport). For this busy of an airspace, I was coordinating with ATC of course. This was quite some time ago, so if I were to do it again, I'd definitely do my homework to verify current procedures. I commonly overflew ONT (Ontario International Airport) in Southern California. It is a much less busy airport than SFO, yet it still has a multitude of commercial aircraft flying in and out. The tower usually had me line up with a rarely used N/S runway as a convenient and very visible path. Altitudes allowed were generally pretty low if there was only commercial traffic. The commercial traffic tends to have straight in and straight out routes, meaning they generally don't fly a pattern of downwind/crosswind/final, leaving the area across the runway(s) in use completely empty, even at a significant distance perpendicular to the runway.
I feel like we have determined to some level of confidence that the second clip in this NRK video is *not* of the ADSB-tracked flight by OY-CDT near Copenhagen airport in the period of ~18:05-18:21UTC, because the lines of sight to other objects in the video do not work until 18:37UTC and later. And given the airport closed at 18:26UTC it is unlikely to be OY-CDT because it is unlikely they would have been approved for another pass over the airport while the airport was closed and there was a law enforcement response, and even if it was approved, it is unlikely that there would be no track for it in either FlightRadar24 or ADSBX.Thanks for the info.
https://www.dronemag.no/dansk-droneobservasjon-kan-ha-vaert-skolefly/External Quote:
Dronemagasinet has been in contact with Copenhagen Airtaxi AS, who confirm that the company's training aircraft, a Socata TB-20 Trinidad, was conducting training flights in the area at the time.
They have, upon reviewing the video footage published by NRK, explained that the lights on the aircraft in the video and circulating online match the lights on their training aircraft with registration number OY-CDT.
Maybe this document can help? I can't interpret it, I'm a layman myself, maybe there is a code for training is allowed, but the data are listed hereExternal Quote:This is helpful info. Do you remember approximately what altitude you were allowed to fly down to when you were flying over SFO and ONT? Airport controlled airspace ceilings are usually still in the thousands (e.g. near me Boston has a 7000ft ceiling, Norwood has a 2600ft, Hanscom/Bedford has 2600ft). So at 350ft you would be low within the controlled airspace, not over the top. And 350ft is so low it'd be in the same vertical space as landing patterns (though not horizontal space, if only certain angled runways were being used for arrivals/departures, and you were flying perpendicular to those or parallel to a sufficiently differently angled runway). Maybe this kind of very low route is more common for flight schools as they are practicing approaches but not actually trying to touch down, as @Mendel said.
The rule for controlled airspace is, if ATC allows it, it's allowed.Maybe this document can help? I can't interpret it, I'm a layman myself, maybe there is a code for training is allowed, but the data are listed here
I am fairly sure that both of those clips were filmed at similar times and in the same place, on taxiway A2 which is one of four short parallel "parking bays" where aircraft were waiting. (Not sure what the correct terminology is!) See the analysis in post 67 and 68.The first part of the NRK video could be OY-CDT as the flight path and line of sight works for a Norwegian plane parked at the gates they were known to have been parked at when OY-CDT flew by just west of the airport, going north. This is the 8 second clip where the left wing tip of a Norwegian plane is visible, and a more distant aircraft is shown flying level to the right across the field of view.
An airport in Denmark has been forced to close after drones were spotted nearby, local police have said.
Incoming and departing flights from Aalborg Airport were halted following the incident.
In a post on X, Nordjyllands Police said: "Drones have been observed near Aalborg Airport and the airspace is closed. The police are present and investigating further."
A spokesperson for the airport did not say how many drones were seen in its airspace.
Four flights were affected, including two SAS planes, one Norwegian and one KLM flight, they added.
Ah yeah I think you are right based on how the ground and the lights/buildings in the background look.I am fairly sure that both of those clips were filmed at similar times and in the same place, on taxiway A2 which is one of four short parallel "parking bays" where aircraft were waiting. (Not sure what the correct terminology is!) See the analysis in post 67 and 68.
Which effectively rules out the CAT plane. The only video which does seem likely to be that plane is the one filmed from the terminal building, shared on Danish TV. But again it might not be because the part of the flight path captured in the first part of the Norwegian clip seems quite similar to the track of OY-CDT.
From FR24 it looks like the first plane to be diverted was SK1221 at about 1945 UTC.The Danish Public Broadcaster (DR) has reported the airspace above the regional, dual-use Danish airport Aalborg Airport (AAL/EKYT) is closed due to drone sightings.
https://www.dr.dk/nyheder/indland/drone-lukker-luftrum-over-aalborg
This is helpful info. Do you remember approximately what altitude you were allowed to fly down to when you were flying over SFO and ONT? Airport controlled airspace ceilings are usually still in the thousands (e.g. near me Boston has a 7000ft ceiling, Norwood has a 2600ft, Hanscom/Bedford has 2600ft). So at 350ft you would be low within the controlled airspace, not over the top. And 350ft is so low it'd be in the same vertical space as landing patterns (though not horizontal space, if only certain angled runways were being used for arrivals/departures, and you were flying perpendicular to those or parallel to a sufficiently differently angled runway). Maybe this kind of very low route is more common for flight schools as they are practicing approaches but not actually trying to touch down, as @Mendel said.
It been a long time since my SFO flyover, but I'm pretty sure I was at a significant altitude, maybe 5000-7000 feet. ONT flyovers could easily have been at less than 1000 feet AGL (Above Ground Level). Mendel is absolutely right, if ATC says you can do it, you can do it. That said, I can't remember ATC ever saying I could do something stupid. The flight school I trained with had a good relationship with the local controllers. We loved ONT. We could do three touch and go's on a single pass with a Cessna and a 10,000 foot runway.The rule for controlled airspace is, if ATC allows it, it's allowed.
(translated by google)External Quote:The drones in Aalborg have been visually verified
Reports of drones are coming in from all over the country, but they are not verified. Among other things, from the airports in Esbjerg and Sønderborg.
The drones over Aalborg Airport have been verified by both airport staff, the airport tower and the police, and when the three are in place, it is "reasonably secure data", says National Police Chief Thorkild Fogde.
Likely enough context visible in order to geolocate.External Quote:New videos of drones over Aalborg
Drones at Aalborg Airport's parking lot
Several viewers have sent video and pictures of drone activity in and around the area at Aalborg Airport. It is not known whether these are the unwanted drones or whether it is government-controlled drones. We have verified this video using Google Maps.
That is not a drone as again these are high powered navigation lights and a strobe at a distance, the police have despatched helicopters so they'll likely add to false positive confirmations and it could be one of those.Alleged Aalborg drone video scraped from: https://nyheder.tv2.dk/live/krimi/2...rg?entry=0910a895-8477-48e4-ae86-fb25e66936e2
Likely enough context visible in order to geolocate.
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