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


Can Air Traffic Controllers participate in Q&A?Can an airport without an FAA controlled tower have their own tower and controllers?How realistic is the aviation crisis in the recent Spider-Man movie?How can civil ATC maintain safety with military aircraft around?Does the FAA advise or require pilots to wear eyewear designed to protect them from lasers?Are air traffic controllers required to obtain a pilot license?Do GA pilots routinely request “flight following” from ATC, and why?Will air traffic control ever ask a plane to not brake hard on a landing?Restore air traffic controllers' instructions from aircraft tracksCan air traffic control be automated along with flying a plane













6












$begingroup$


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. In some or most instances, they will not land in that air space, they are simply passing through and may encounter lots and lots of regional and international air traffic.



They are routinely directed by air traffic controllers to fly at a certain direction, increase or decrease altitude for safety in order to avoid collisions and accidents. In most instances, auto pilot is engaged and I assume the headphones come off, for flights longer than say 2 hours or even 1 hour.



Speaker phone may be on but pilots can read a book or watch a movie on their laptop or revise their reading on knowledge of their ever changing craft. At a certain frequency.



I gather lots of communication to planes occurs and listening to all of them can become tedious and may require too much concentration. In this light, do airline pilots ever risk not hearing communication directed to them specifically, from traffic controllers of space they are flying past on cruise?



Does a light or sound or siren switch on when a message is directed at them and I assume they differentiate communication directed at them by their call sign, e.g., American Airlines Flight 200.



Is there a risk they might not hear it and how is that risk mitigated?










share|improve this question











$endgroup$











  • $begingroup$
    See en.wikipedia.org/wiki/SELCAL
    $endgroup$
    – vasin1987
    19 hours ago






  • 2




    $begingroup$
    Pilots are not allowed to do any of the things you mention. Basically all they can do in the cockpit during cruise is watch the instruments, do flight related stuff (communicating, looking up procedures they'll need next and briefing them and similar), and make small talk. Definitely no book reading or using tablet except as electronic flight bag. They can eat though, and of course they sometimes need to go to the restroom.
    $endgroup$
    – Jan Hudec
    7 hours ago











  • $begingroup$
    (and note I didn't include fly the plane, because in RVSM space, i.e. above FL290 where most airline flights cruise, using autopilot for altitude hold is required—pilots often do hand-fly approaches and departures, but nobody hand-flies in cruise (in an airliner))
    $endgroup$
    – Jan Hudec
    7 hours ago
















6












$begingroup$


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. In some or most instances, they will not land in that air space, they are simply passing through and may encounter lots and lots of regional and international air traffic.



They are routinely directed by air traffic controllers to fly at a certain direction, increase or decrease altitude for safety in order to avoid collisions and accidents. In most instances, auto pilot is engaged and I assume the headphones come off, for flights longer than say 2 hours or even 1 hour.



Speaker phone may be on but pilots can read a book or watch a movie on their laptop or revise their reading on knowledge of their ever changing craft. At a certain frequency.



I gather lots of communication to planes occurs and listening to all of them can become tedious and may require too much concentration. In this light, do airline pilots ever risk not hearing communication directed to them specifically, from traffic controllers of space they are flying past on cruise?



Does a light or sound or siren switch on when a message is directed at them and I assume they differentiate communication directed at them by their call sign, e.g., American Airlines Flight 200.



Is there a risk they might not hear it and how is that risk mitigated?










share|improve this question











$endgroup$











  • $begingroup$
    See en.wikipedia.org/wiki/SELCAL
    $endgroup$
    – vasin1987
    19 hours ago






  • 2




    $begingroup$
    Pilots are not allowed to do any of the things you mention. Basically all they can do in the cockpit during cruise is watch the instruments, do flight related stuff (communicating, looking up procedures they'll need next and briefing them and similar), and make small talk. Definitely no book reading or using tablet except as electronic flight bag. They can eat though, and of course they sometimes need to go to the restroom.
    $endgroup$
    – Jan Hudec
    7 hours ago











  • $begingroup$
    (and note I didn't include fly the plane, because in RVSM space, i.e. above FL290 where most airline flights cruise, using autopilot for altitude hold is required—pilots often do hand-fly approaches and departures, but nobody hand-flies in cruise (in an airliner))
    $endgroup$
    – Jan Hudec
    7 hours ago














6












6








6


3



$begingroup$


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. In some or most instances, they will not land in that air space, they are simply passing through and may encounter lots and lots of regional and international air traffic.



They are routinely directed by air traffic controllers to fly at a certain direction, increase or decrease altitude for safety in order to avoid collisions and accidents. In most instances, auto pilot is engaged and I assume the headphones come off, for flights longer than say 2 hours or even 1 hour.



Speaker phone may be on but pilots can read a book or watch a movie on their laptop or revise their reading on knowledge of their ever changing craft. At a certain frequency.



I gather lots of communication to planes occurs and listening to all of them can become tedious and may require too much concentration. In this light, do airline pilots ever risk not hearing communication directed to them specifically, from traffic controllers of space they are flying past on cruise?



Does a light or sound or siren switch on when a message is directed at them and I assume they differentiate communication directed at them by their call sign, e.g., American Airlines Flight 200.



Is there a risk they might not hear it and how is that risk mitigated?










share|improve this question











$endgroup$




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. In some or most instances, they will not land in that air space, they are simply passing through and may encounter lots and lots of regional and international air traffic.



They are routinely directed by air traffic controllers to fly at a certain direction, increase or decrease altitude for safety in order to avoid collisions and accidents. In most instances, auto pilot is engaged and I assume the headphones come off, for flights longer than say 2 hours or even 1 hour.



Speaker phone may be on but pilots can read a book or watch a movie on their laptop or revise their reading on knowledge of their ever changing craft. At a certain frequency.



I gather lots of communication to planes occurs and listening to all of them can become tedious and may require too much concentration. In this light, do airline pilots ever risk not hearing communication directed to them specifically, from traffic controllers of space they are flying past on cruise?



Does a light or sound or siren switch on when a message is directed at them and I assume they differentiate communication directed at them by their call sign, e.g., American Airlines Flight 200.



Is there a risk they might not hear it and how is that risk mitigated?







air-traffic-control airliner radio-communications pilots






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 17 hours ago









Rodrigo de Azevedo

8041519




8041519










asked 20 hours ago









securitydude5securitydude5

3,51642560




3,51642560











  • $begingroup$
    See en.wikipedia.org/wiki/SELCAL
    $endgroup$
    – vasin1987
    19 hours ago






  • 2




    $begingroup$
    Pilots are not allowed to do any of the things you mention. Basically all they can do in the cockpit during cruise is watch the instruments, do flight related stuff (communicating, looking up procedures they'll need next and briefing them and similar), and make small talk. Definitely no book reading or using tablet except as electronic flight bag. They can eat though, and of course they sometimes need to go to the restroom.
    $endgroup$
    – Jan Hudec
    7 hours ago











  • $begingroup$
    (and note I didn't include fly the plane, because in RVSM space, i.e. above FL290 where most airline flights cruise, using autopilot for altitude hold is required—pilots often do hand-fly approaches and departures, but nobody hand-flies in cruise (in an airliner))
    $endgroup$
    – Jan Hudec
    7 hours ago

















  • $begingroup$
    See en.wikipedia.org/wiki/SELCAL
    $endgroup$
    – vasin1987
    19 hours ago






  • 2




    $begingroup$
    Pilots are not allowed to do any of the things you mention. Basically all they can do in the cockpit during cruise is watch the instruments, do flight related stuff (communicating, looking up procedures they'll need next and briefing them and similar), and make small talk. Definitely no book reading or using tablet except as electronic flight bag. They can eat though, and of course they sometimes need to go to the restroom.
    $endgroup$
    – Jan Hudec
    7 hours ago











  • $begingroup$
    (and note I didn't include fly the plane, because in RVSM space, i.e. above FL290 where most airline flights cruise, using autopilot for altitude hold is required—pilots often do hand-fly approaches and departures, but nobody hand-flies in cruise (in an airliner))
    $endgroup$
    – Jan Hudec
    7 hours ago
















$begingroup$
See en.wikipedia.org/wiki/SELCAL
$endgroup$
– vasin1987
19 hours ago




$begingroup$
See en.wikipedia.org/wiki/SELCAL
$endgroup$
– vasin1987
19 hours ago




2




2




$begingroup$
Pilots are not allowed to do any of the things you mention. Basically all they can do in the cockpit during cruise is watch the instruments, do flight related stuff (communicating, looking up procedures they'll need next and briefing them and similar), and make small talk. Definitely no book reading or using tablet except as electronic flight bag. They can eat though, and of course they sometimes need to go to the restroom.
$endgroup$
– Jan Hudec
7 hours ago





$begingroup$
Pilots are not allowed to do any of the things you mention. Basically all they can do in the cockpit during cruise is watch the instruments, do flight related stuff (communicating, looking up procedures they'll need next and briefing them and similar), and make small talk. Definitely no book reading or using tablet except as electronic flight bag. They can eat though, and of course they sometimes need to go to the restroom.
$endgroup$
– Jan Hudec
7 hours ago













$begingroup$
(and note I didn't include fly the plane, because in RVSM space, i.e. above FL290 where most airline flights cruise, using autopilot for altitude hold is required—pilots often do hand-fly approaches and departures, but nobody hand-flies in cruise (in an airliner))
$endgroup$
– Jan Hudec
7 hours ago





$begingroup$
(and note I didn't include fly the plane, because in RVSM space, i.e. above FL290 where most airline flights cruise, using autopilot for altitude hold is required—pilots often do hand-fly approaches and departures, but nobody hand-flies in cruise (in an airliner))
$endgroup$
– Jan Hudec
7 hours ago











3 Answers
3






active

oldest

votes


















7












$begingroup$

There is a ton of radio communication during the taxi, takeoff and departure phases, and then again during the arrival, landing and taxi phases. Pilots are generally very busy at these times and 100% focused. Airlines have two pilots, and one will be flying while the other works the radios and monitors various instruments.



Cruise is another matter. There generally isn't a lot to do other than keep an eye on the autopilot. The pilots will take turns eating, resting, going to the lav, etc. Radio work usually involves little more than getting handed from one frequency to the next. They may get rerouted due to traffic or weather, but it only takes a few seconds to update the autopilot.



Either way, pilots do occasionally miss radio calls. So does ATC for that matter. It's common enough that nobody gets worried about once or twice, though it's annoying. If it's a real radio problem, there are procedures for both sides to follow to keep everyone safe.



There isn't any sort of light or tone when someone is calling you. However, the standard format is "called station, calling station, message", so your brain can quickly tell whether the message is for you. If so, it focuses and you hear the message; if not, it treats it as background noise.






share|improve this answer











$endgroup$




















    4












    $begingroup$

    When a pilot is given instructions, clearances etc. from a controller, the pilot has to acknowledge they've heard it and certain items need to be read back to the controller. If the controller doesn't hear anything they will repeat their message and keep trying to contact the aircraft. The rules for UK readbacks are included in a CAA document CAP413, along with other conventions and standards for communication between flight radio telephony stations



    It's not that uncommon, these days, for fighter aircraft to be scrambled to intercept unresponsive aircraft



    There is less communication that you'd expect once you've made contact with a controller and been given your clearances. It isn't an onerous task to listen in to all the chat and respond when you hear your callsign






    share|improve this answer









    $endgroup$




















      1












      $begingroup$

      Normally pilots do not communicate much with ATCC between airports. For example, in small aircraft normally the pilot will often hear nothing from ATCC unless they have specifically requested flight following. Small VFR aircraft usually fly with a 1200 transponder code which is generic, and in that case it is tricky for an ATCC to even contact the plane at all.



      For larger aircraft, usually a separation is guaranteed from instructions at the beginning of flight and contact is only necessary if something changes, so your guess that they talk to the pilots "regularly" is not really correct.



      Note that most commercial aircraft monitor 121.5 in addition to their assigned frequency and an ATCC will always try that if they are getting no response on an assigned frequency. So, big planes have to screw up twice to go incommunicado completely.



      If an aircraft is unresponsive, then what happens depends on a lot of different factors. The bigger the aircraft, the more actively ATC will react. If it is a small aircraft on IFR, then ATC will assume the pilot is on the wrong frequency and just steer other aircraft around them. If that causes a big problem, the offending pilot will get written up. Usually the pilot will figure out he is out of contact once he gets closer to civilization. If it is a heavy, ATC will make repeated attempts to contact and do the same thing as with a smaller plane: steer others around them. If the heavy is unresponsive and deviates from its flight plan or remains unresponsive for a long time, then fighter aircraft will be scrambled to intercept and observe them. Obviously, if a commercial crew with a lot of passengers goes unresponsive for so long that it requires an intercept, they are going to get in trouble. By "they" I mean the captain and first officer.






      share|improve this answer









      $endgroup$












      • $begingroup$
        So in essence pilots are assigned a certain frequency and its unique to each plane , also unique to each fight, so the momen they hear the radio, they know its directed to them and no one else and hence they respond
        $endgroup$
        – securitydude5
        17 hours ago






      • 2




        $begingroup$
        @securitydude5 No. There is a common frequency for the controlling station (there may be more than one frequency if there's a lot of traffic). All the appropriate traffic will be on that channel. For example Shannon Approach is 121.400 and everyone flying into Shannon will be on that - you can listen in at liveatc.net/search/?icao=einn
        $endgroup$
        – Dave Gremlin
        17 hours ago











      • $begingroup$
        SO I guess pilots use SELCAL then or so they do not devote all their time to radio listening, perhaps some do some dont? What is the standard?
        $endgroup$
        – securitydude5
        17 hours ago







      • 2




        $begingroup$
        @securitydude5 When ATC wants to talk to an aircraft they use an assigned frequency (which is usually one of only one, two or three possibilities that are specific for that center or tower). They address the plane by using its call sign. For a commercial aircraft the call sign usually has their flight number. For example, "Contact Boston Center on 129.1, United One Seven Six Zero".
        $endgroup$
        – Tyler Durden
        15 hours ago







      • 3




        $begingroup$
        @securitydude5 - It's not a good idea to select out other radio calls, they can tell you where other traffic is, what it is and where it's going. Actively listening to other aircraft is encouraged to increase situational awareness
        $endgroup$
        – Dave Gremlin
        12 hours ago











      Your Answer





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      3 Answers
      3






      active

      oldest

      votes








      3 Answers
      3






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      7












      $begingroup$

      There is a ton of radio communication during the taxi, takeoff and departure phases, and then again during the arrival, landing and taxi phases. Pilots are generally very busy at these times and 100% focused. Airlines have two pilots, and one will be flying while the other works the radios and monitors various instruments.



      Cruise is another matter. There generally isn't a lot to do other than keep an eye on the autopilot. The pilots will take turns eating, resting, going to the lav, etc. Radio work usually involves little more than getting handed from one frequency to the next. They may get rerouted due to traffic or weather, but it only takes a few seconds to update the autopilot.



      Either way, pilots do occasionally miss radio calls. So does ATC for that matter. It's common enough that nobody gets worried about once or twice, though it's annoying. If it's a real radio problem, there are procedures for both sides to follow to keep everyone safe.



      There isn't any sort of light or tone when someone is calling you. However, the standard format is "called station, calling station, message", so your brain can quickly tell whether the message is for you. If so, it focuses and you hear the message; if not, it treats it as background noise.






      share|improve this answer











      $endgroup$

















        7












        $begingroup$

        There is a ton of radio communication during the taxi, takeoff and departure phases, and then again during the arrival, landing and taxi phases. Pilots are generally very busy at these times and 100% focused. Airlines have two pilots, and one will be flying while the other works the radios and monitors various instruments.



        Cruise is another matter. There generally isn't a lot to do other than keep an eye on the autopilot. The pilots will take turns eating, resting, going to the lav, etc. Radio work usually involves little more than getting handed from one frequency to the next. They may get rerouted due to traffic or weather, but it only takes a few seconds to update the autopilot.



        Either way, pilots do occasionally miss radio calls. So does ATC for that matter. It's common enough that nobody gets worried about once or twice, though it's annoying. If it's a real radio problem, there are procedures for both sides to follow to keep everyone safe.



        There isn't any sort of light or tone when someone is calling you. However, the standard format is "called station, calling station, message", so your brain can quickly tell whether the message is for you. If so, it focuses and you hear the message; if not, it treats it as background noise.






        share|improve this answer











        $endgroup$















          7












          7








          7





          $begingroup$

          There is a ton of radio communication during the taxi, takeoff and departure phases, and then again during the arrival, landing and taxi phases. Pilots are generally very busy at these times and 100% focused. Airlines have two pilots, and one will be flying while the other works the radios and monitors various instruments.



          Cruise is another matter. There generally isn't a lot to do other than keep an eye on the autopilot. The pilots will take turns eating, resting, going to the lav, etc. Radio work usually involves little more than getting handed from one frequency to the next. They may get rerouted due to traffic or weather, but it only takes a few seconds to update the autopilot.



          Either way, pilots do occasionally miss radio calls. So does ATC for that matter. It's common enough that nobody gets worried about once or twice, though it's annoying. If it's a real radio problem, there are procedures for both sides to follow to keep everyone safe.



          There isn't any sort of light or tone when someone is calling you. However, the standard format is "called station, calling station, message", so your brain can quickly tell whether the message is for you. If so, it focuses and you hear the message; if not, it treats it as background noise.






          share|improve this answer











          $endgroup$



          There is a ton of radio communication during the taxi, takeoff and departure phases, and then again during the arrival, landing and taxi phases. Pilots are generally very busy at these times and 100% focused. Airlines have two pilots, and one will be flying while the other works the radios and monitors various instruments.



          Cruise is another matter. There generally isn't a lot to do other than keep an eye on the autopilot. The pilots will take turns eating, resting, going to the lav, etc. Radio work usually involves little more than getting handed from one frequency to the next. They may get rerouted due to traffic or weather, but it only takes a few seconds to update the autopilot.



          Either way, pilots do occasionally miss radio calls. So does ATC for that matter. It's common enough that nobody gets worried about once or twice, though it's annoying. If it's a real radio problem, there are procedures for both sides to follow to keep everyone safe.



          There isn't any sort of light or tone when someone is calling you. However, the standard format is "called station, calling station, message", so your brain can quickly tell whether the message is for you. If so, it focuses and you hear the message; if not, it treats it as background noise.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 8 hours ago









          Pondlife

          52.2k10142290




          52.2k10142290










          answered 9 hours ago









          StephenSStephenS

          5,0961927




          5,0961927





















              4












              $begingroup$

              When a pilot is given instructions, clearances etc. from a controller, the pilot has to acknowledge they've heard it and certain items need to be read back to the controller. If the controller doesn't hear anything they will repeat their message and keep trying to contact the aircraft. The rules for UK readbacks are included in a CAA document CAP413, along with other conventions and standards for communication between flight radio telephony stations



              It's not that uncommon, these days, for fighter aircraft to be scrambled to intercept unresponsive aircraft



              There is less communication that you'd expect once you've made contact with a controller and been given your clearances. It isn't an onerous task to listen in to all the chat and respond when you hear your callsign






              share|improve this answer









              $endgroup$

















                4












                $begingroup$

                When a pilot is given instructions, clearances etc. from a controller, the pilot has to acknowledge they've heard it and certain items need to be read back to the controller. If the controller doesn't hear anything they will repeat their message and keep trying to contact the aircraft. The rules for UK readbacks are included in a CAA document CAP413, along with other conventions and standards for communication between flight radio telephony stations



                It's not that uncommon, these days, for fighter aircraft to be scrambled to intercept unresponsive aircraft



                There is less communication that you'd expect once you've made contact with a controller and been given your clearances. It isn't an onerous task to listen in to all the chat and respond when you hear your callsign






                share|improve this answer









                $endgroup$















                  4












                  4








                  4





                  $begingroup$

                  When a pilot is given instructions, clearances etc. from a controller, the pilot has to acknowledge they've heard it and certain items need to be read back to the controller. If the controller doesn't hear anything they will repeat their message and keep trying to contact the aircraft. The rules for UK readbacks are included in a CAA document CAP413, along with other conventions and standards for communication between flight radio telephony stations



                  It's not that uncommon, these days, for fighter aircraft to be scrambled to intercept unresponsive aircraft



                  There is less communication that you'd expect once you've made contact with a controller and been given your clearances. It isn't an onerous task to listen in to all the chat and respond when you hear your callsign






                  share|improve this answer









                  $endgroup$



                  When a pilot is given instructions, clearances etc. from a controller, the pilot has to acknowledge they've heard it and certain items need to be read back to the controller. If the controller doesn't hear anything they will repeat their message and keep trying to contact the aircraft. The rules for UK readbacks are included in a CAA document CAP413, along with other conventions and standards for communication between flight radio telephony stations



                  It's not that uncommon, these days, for fighter aircraft to be scrambled to intercept unresponsive aircraft



                  There is less communication that you'd expect once you've made contact with a controller and been given your clearances. It isn't an onerous task to listen in to all the chat and respond when you hear your callsign







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 19 hours ago









                  Dave GremlinDave Gremlin

                  768312




                  768312





















                      1












                      $begingroup$

                      Normally pilots do not communicate much with ATCC between airports. For example, in small aircraft normally the pilot will often hear nothing from ATCC unless they have specifically requested flight following. Small VFR aircraft usually fly with a 1200 transponder code which is generic, and in that case it is tricky for an ATCC to even contact the plane at all.



                      For larger aircraft, usually a separation is guaranteed from instructions at the beginning of flight and contact is only necessary if something changes, so your guess that they talk to the pilots "regularly" is not really correct.



                      Note that most commercial aircraft monitor 121.5 in addition to their assigned frequency and an ATCC will always try that if they are getting no response on an assigned frequency. So, big planes have to screw up twice to go incommunicado completely.



                      If an aircraft is unresponsive, then what happens depends on a lot of different factors. The bigger the aircraft, the more actively ATC will react. If it is a small aircraft on IFR, then ATC will assume the pilot is on the wrong frequency and just steer other aircraft around them. If that causes a big problem, the offending pilot will get written up. Usually the pilot will figure out he is out of contact once he gets closer to civilization. If it is a heavy, ATC will make repeated attempts to contact and do the same thing as with a smaller plane: steer others around them. If the heavy is unresponsive and deviates from its flight plan or remains unresponsive for a long time, then fighter aircraft will be scrambled to intercept and observe them. Obviously, if a commercial crew with a lot of passengers goes unresponsive for so long that it requires an intercept, they are going to get in trouble. By "they" I mean the captain and first officer.






                      share|improve this answer









                      $endgroup$












                      • $begingroup$
                        So in essence pilots are assigned a certain frequency and its unique to each plane , also unique to each fight, so the momen they hear the radio, they know its directed to them and no one else and hence they respond
                        $endgroup$
                        – securitydude5
                        17 hours ago






                      • 2




                        $begingroup$
                        @securitydude5 No. There is a common frequency for the controlling station (there may be more than one frequency if there's a lot of traffic). All the appropriate traffic will be on that channel. For example Shannon Approach is 121.400 and everyone flying into Shannon will be on that - you can listen in at liveatc.net/search/?icao=einn
                        $endgroup$
                        – Dave Gremlin
                        17 hours ago











                      • $begingroup$
                        SO I guess pilots use SELCAL then or so they do not devote all their time to radio listening, perhaps some do some dont? What is the standard?
                        $endgroup$
                        – securitydude5
                        17 hours ago







                      • 2




                        $begingroup$
                        @securitydude5 When ATC wants to talk to an aircraft they use an assigned frequency (which is usually one of only one, two or three possibilities that are specific for that center or tower). They address the plane by using its call sign. For a commercial aircraft the call sign usually has their flight number. For example, "Contact Boston Center on 129.1, United One Seven Six Zero".
                        $endgroup$
                        – Tyler Durden
                        15 hours ago







                      • 3




                        $begingroup$
                        @securitydude5 - It's not a good idea to select out other radio calls, they can tell you where other traffic is, what it is and where it's going. Actively listening to other aircraft is encouraged to increase situational awareness
                        $endgroup$
                        – Dave Gremlin
                        12 hours ago















                      1












                      $begingroup$

                      Normally pilots do not communicate much with ATCC between airports. For example, in small aircraft normally the pilot will often hear nothing from ATCC unless they have specifically requested flight following. Small VFR aircraft usually fly with a 1200 transponder code which is generic, and in that case it is tricky for an ATCC to even contact the plane at all.



                      For larger aircraft, usually a separation is guaranteed from instructions at the beginning of flight and contact is only necessary if something changes, so your guess that they talk to the pilots "regularly" is not really correct.



                      Note that most commercial aircraft monitor 121.5 in addition to their assigned frequency and an ATCC will always try that if they are getting no response on an assigned frequency. So, big planes have to screw up twice to go incommunicado completely.



                      If an aircraft is unresponsive, then what happens depends on a lot of different factors. The bigger the aircraft, the more actively ATC will react. If it is a small aircraft on IFR, then ATC will assume the pilot is on the wrong frequency and just steer other aircraft around them. If that causes a big problem, the offending pilot will get written up. Usually the pilot will figure out he is out of contact once he gets closer to civilization. If it is a heavy, ATC will make repeated attempts to contact and do the same thing as with a smaller plane: steer others around them. If the heavy is unresponsive and deviates from its flight plan or remains unresponsive for a long time, then fighter aircraft will be scrambled to intercept and observe them. Obviously, if a commercial crew with a lot of passengers goes unresponsive for so long that it requires an intercept, they are going to get in trouble. By "they" I mean the captain and first officer.






                      share|improve this answer









                      $endgroup$












                      • $begingroup$
                        So in essence pilots are assigned a certain frequency and its unique to each plane , also unique to each fight, so the momen they hear the radio, they know its directed to them and no one else and hence they respond
                        $endgroup$
                        – securitydude5
                        17 hours ago






                      • 2




                        $begingroup$
                        @securitydude5 No. There is a common frequency for the controlling station (there may be more than one frequency if there's a lot of traffic). All the appropriate traffic will be on that channel. For example Shannon Approach is 121.400 and everyone flying into Shannon will be on that - you can listen in at liveatc.net/search/?icao=einn
                        $endgroup$
                        – Dave Gremlin
                        17 hours ago











                      • $begingroup$
                        SO I guess pilots use SELCAL then or so they do not devote all their time to radio listening, perhaps some do some dont? What is the standard?
                        $endgroup$
                        – securitydude5
                        17 hours ago







                      • 2




                        $begingroup$
                        @securitydude5 When ATC wants to talk to an aircraft they use an assigned frequency (which is usually one of only one, two or three possibilities that are specific for that center or tower). They address the plane by using its call sign. For a commercial aircraft the call sign usually has their flight number. For example, "Contact Boston Center on 129.1, United One Seven Six Zero".
                        $endgroup$
                        – Tyler Durden
                        15 hours ago







                      • 3




                        $begingroup$
                        @securitydude5 - It's not a good idea to select out other radio calls, they can tell you where other traffic is, what it is and where it's going. Actively listening to other aircraft is encouraged to increase situational awareness
                        $endgroup$
                        – Dave Gremlin
                        12 hours ago













                      1












                      1








                      1





                      $begingroup$

                      Normally pilots do not communicate much with ATCC between airports. For example, in small aircraft normally the pilot will often hear nothing from ATCC unless they have specifically requested flight following. Small VFR aircraft usually fly with a 1200 transponder code which is generic, and in that case it is tricky for an ATCC to even contact the plane at all.



                      For larger aircraft, usually a separation is guaranteed from instructions at the beginning of flight and contact is only necessary if something changes, so your guess that they talk to the pilots "regularly" is not really correct.



                      Note that most commercial aircraft monitor 121.5 in addition to their assigned frequency and an ATCC will always try that if they are getting no response on an assigned frequency. So, big planes have to screw up twice to go incommunicado completely.



                      If an aircraft is unresponsive, then what happens depends on a lot of different factors. The bigger the aircraft, the more actively ATC will react. If it is a small aircraft on IFR, then ATC will assume the pilot is on the wrong frequency and just steer other aircraft around them. If that causes a big problem, the offending pilot will get written up. Usually the pilot will figure out he is out of contact once he gets closer to civilization. If it is a heavy, ATC will make repeated attempts to contact and do the same thing as with a smaller plane: steer others around them. If the heavy is unresponsive and deviates from its flight plan or remains unresponsive for a long time, then fighter aircraft will be scrambled to intercept and observe them. Obviously, if a commercial crew with a lot of passengers goes unresponsive for so long that it requires an intercept, they are going to get in trouble. By "they" I mean the captain and first officer.






                      share|improve this answer









                      $endgroup$



                      Normally pilots do not communicate much with ATCC between airports. For example, in small aircraft normally the pilot will often hear nothing from ATCC unless they have specifically requested flight following. Small VFR aircraft usually fly with a 1200 transponder code which is generic, and in that case it is tricky for an ATCC to even contact the plane at all.



                      For larger aircraft, usually a separation is guaranteed from instructions at the beginning of flight and contact is only necessary if something changes, so your guess that they talk to the pilots "regularly" is not really correct.



                      Note that most commercial aircraft monitor 121.5 in addition to their assigned frequency and an ATCC will always try that if they are getting no response on an assigned frequency. So, big planes have to screw up twice to go incommunicado completely.



                      If an aircraft is unresponsive, then what happens depends on a lot of different factors. The bigger the aircraft, the more actively ATC will react. If it is a small aircraft on IFR, then ATC will assume the pilot is on the wrong frequency and just steer other aircraft around them. If that causes a big problem, the offending pilot will get written up. Usually the pilot will figure out he is out of contact once he gets closer to civilization. If it is a heavy, ATC will make repeated attempts to contact and do the same thing as with a smaller plane: steer others around them. If the heavy is unresponsive and deviates from its flight plan or remains unresponsive for a long time, then fighter aircraft will be scrambled to intercept and observe them. Obviously, if a commercial crew with a lot of passengers goes unresponsive for so long that it requires an intercept, they are going to get in trouble. By "they" I mean the captain and first officer.







                      share|improve this answer












                      share|improve this answer



                      share|improve this answer










                      answered 18 hours ago









                      Tyler DurdenTyler Durden

                      10.1k12851




                      10.1k12851











                      • $begingroup$
                        So in essence pilots are assigned a certain frequency and its unique to each plane , also unique to each fight, so the momen they hear the radio, they know its directed to them and no one else and hence they respond
                        $endgroup$
                        – securitydude5
                        17 hours ago






                      • 2




                        $begingroup$
                        @securitydude5 No. There is a common frequency for the controlling station (there may be more than one frequency if there's a lot of traffic). All the appropriate traffic will be on that channel. For example Shannon Approach is 121.400 and everyone flying into Shannon will be on that - you can listen in at liveatc.net/search/?icao=einn
                        $endgroup$
                        – Dave Gremlin
                        17 hours ago











                      • $begingroup$
                        SO I guess pilots use SELCAL then or so they do not devote all their time to radio listening, perhaps some do some dont? What is the standard?
                        $endgroup$
                        – securitydude5
                        17 hours ago







                      • 2




                        $begingroup$
                        @securitydude5 When ATC wants to talk to an aircraft they use an assigned frequency (which is usually one of only one, two or three possibilities that are specific for that center or tower). They address the plane by using its call sign. For a commercial aircraft the call sign usually has their flight number. For example, "Contact Boston Center on 129.1, United One Seven Six Zero".
                        $endgroup$
                        – Tyler Durden
                        15 hours ago







                      • 3




                        $begingroup$
                        @securitydude5 - It's not a good idea to select out other radio calls, they can tell you where other traffic is, what it is and where it's going. Actively listening to other aircraft is encouraged to increase situational awareness
                        $endgroup$
                        – Dave Gremlin
                        12 hours ago
















                      • $begingroup$
                        So in essence pilots are assigned a certain frequency and its unique to each plane , also unique to each fight, so the momen they hear the radio, they know its directed to them and no one else and hence they respond
                        $endgroup$
                        – securitydude5
                        17 hours ago






                      • 2




                        $begingroup$
                        @securitydude5 No. There is a common frequency for the controlling station (there may be more than one frequency if there's a lot of traffic). All the appropriate traffic will be on that channel. For example Shannon Approach is 121.400 and everyone flying into Shannon will be on that - you can listen in at liveatc.net/search/?icao=einn
                        $endgroup$
                        – Dave Gremlin
                        17 hours ago











                      • $begingroup$
                        SO I guess pilots use SELCAL then or so they do not devote all their time to radio listening, perhaps some do some dont? What is the standard?
                        $endgroup$
                        – securitydude5
                        17 hours ago







                      • 2




                        $begingroup$
                        @securitydude5 When ATC wants to talk to an aircraft they use an assigned frequency (which is usually one of only one, two or three possibilities that are specific for that center or tower). They address the plane by using its call sign. For a commercial aircraft the call sign usually has their flight number. For example, "Contact Boston Center on 129.1, United One Seven Six Zero".
                        $endgroup$
                        – Tyler Durden
                        15 hours ago







                      • 3




                        $begingroup$
                        @securitydude5 - It's not a good idea to select out other radio calls, they can tell you where other traffic is, what it is and where it's going. Actively listening to other aircraft is encouraged to increase situational awareness
                        $endgroup$
                        – Dave Gremlin
                        12 hours ago















                      $begingroup$
                      So in essence pilots are assigned a certain frequency and its unique to each plane , also unique to each fight, so the momen they hear the radio, they know its directed to them and no one else and hence they respond
                      $endgroup$
                      – securitydude5
                      17 hours ago




                      $begingroup$
                      So in essence pilots are assigned a certain frequency and its unique to each plane , also unique to each fight, so the momen they hear the radio, they know its directed to them and no one else and hence they respond
                      $endgroup$
                      – securitydude5
                      17 hours ago




                      2




                      2




                      $begingroup$
                      @securitydude5 No. There is a common frequency for the controlling station (there may be more than one frequency if there's a lot of traffic). All the appropriate traffic will be on that channel. For example Shannon Approach is 121.400 and everyone flying into Shannon will be on that - you can listen in at liveatc.net/search/?icao=einn
                      $endgroup$
                      – Dave Gremlin
                      17 hours ago





                      $begingroup$
                      @securitydude5 No. There is a common frequency for the controlling station (there may be more than one frequency if there's a lot of traffic). All the appropriate traffic will be on that channel. For example Shannon Approach is 121.400 and everyone flying into Shannon will be on that - you can listen in at liveatc.net/search/?icao=einn
                      $endgroup$
                      – Dave Gremlin
                      17 hours ago













                      $begingroup$
                      SO I guess pilots use SELCAL then or so they do not devote all their time to radio listening, perhaps some do some dont? What is the standard?
                      $endgroup$
                      – securitydude5
                      17 hours ago





                      $begingroup$
                      SO I guess pilots use SELCAL then or so they do not devote all their time to radio listening, perhaps some do some dont? What is the standard?
                      $endgroup$
                      – securitydude5
                      17 hours ago





                      2




                      2




                      $begingroup$
                      @securitydude5 When ATC wants to talk to an aircraft they use an assigned frequency (which is usually one of only one, two or three possibilities that are specific for that center or tower). They address the plane by using its call sign. For a commercial aircraft the call sign usually has their flight number. For example, "Contact Boston Center on 129.1, United One Seven Six Zero".
                      $endgroup$
                      – Tyler Durden
                      15 hours ago





                      $begingroup$
                      @securitydude5 When ATC wants to talk to an aircraft they use an assigned frequency (which is usually one of only one, two or three possibilities that are specific for that center or tower). They address the plane by using its call sign. For a commercial aircraft the call sign usually has their flight number. For example, "Contact Boston Center on 129.1, United One Seven Six Zero".
                      $endgroup$
                      – Tyler Durden
                      15 hours ago





                      3




                      3




                      $begingroup$
                      @securitydude5 - It's not a good idea to select out other radio calls, they can tell you where other traffic is, what it is and where it's going. Actively listening to other aircraft is encouraged to increase situational awareness
                      $endgroup$
                      – Dave Gremlin
                      12 hours ago




                      $begingroup$
                      @securitydude5 - It's not a good idea to select out other radio calls, they can tell you where other traffic is, what it is and where it's going. Actively listening to other aircraft is encouraged to increase situational awareness
                      $endgroup$
                      – Dave Gremlin
                      12 hours ago

















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                      ValueError: Expected n_neighbors <= n_samples, but n_samples = 1, n_neighbors = 6 (SMOTE) The 2019 Stack Overflow Developer Survey Results Are InCan SMOTE be applied over sequence of words (sentences)?ValueError when doing validation with random forestsSMOTE and multi class oversamplingLogic behind SMOTE-NC?ValueError: Error when checking target: expected dense_1 to have shape (7,) but got array with shape (1,)SmoteBoost: Should SMOTE be ran individually for each iteration/tree in the boosting?solving multi-class imbalance classification using smote and OSSUsing SMOTE for Synthetic Data generation to improve performance on unbalanced dataproblem of entry format for a simple model in KerasSVM SMOTE fit_resample() function runs forever with no result