What does this control do on new airplanes?











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On the last two planes I took, just last week, there was the control shown in this (very blurry, sorry) photo. The planes were Boeing 787-8. It seems to be made of two half-circle buttons.



On the first plane, pressing the half buttons moved the blue light up or down. On the second, nothing happened. Nothing else seemed to change. I paid attention to the window and cabin light but nothing happened. Since these planes had no apparent window shade, I thought the control would operate a mechanism to act as shade.



What is this control for? What is doing something? Could it have been not operational on one or both planes? Seems an unlikely coincidence, particularly since the behavior of the blue light was different.



Control










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    gizmodo.com/5829395/…
    – Nate Eldredge
    Dec 4 at 1:06






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    Wings stay on, wings fall off.
    – Andrew Grimm
    Dec 4 at 4:11















up vote
22
down vote

favorite












On the last two planes I took, just last week, there was the control shown in this (very blurry, sorry) photo. The planes were Boeing 787-8. It seems to be made of two half-circle buttons.



On the first plane, pressing the half buttons moved the blue light up or down. On the second, nothing happened. Nothing else seemed to change. I paid attention to the window and cabin light but nothing happened. Since these planes had no apparent window shade, I thought the control would operate a mechanism to act as shade.



What is this control for? What is doing something? Could it have been not operational on one or both planes? Seems an unlikely coincidence, particularly since the behavior of the blue light was different.



Control










share|improve this question


















  • 6




    gizmodo.com/5829395/…
    – Nate Eldredge
    Dec 4 at 1:06






  • 26




    Wings stay on, wings fall off.
    – Andrew Grimm
    Dec 4 at 4:11













up vote
22
down vote

favorite









up vote
22
down vote

favorite











On the last two planes I took, just last week, there was the control shown in this (very blurry, sorry) photo. The planes were Boeing 787-8. It seems to be made of two half-circle buttons.



On the first plane, pressing the half buttons moved the blue light up or down. On the second, nothing happened. Nothing else seemed to change. I paid attention to the window and cabin light but nothing happened. Since these planes had no apparent window shade, I thought the control would operate a mechanism to act as shade.



What is this control for? What is doing something? Could it have been not operational on one or both planes? Seems an unlikely coincidence, particularly since the behavior of the blue light was different.



Control










share|improve this question













On the last two planes I took, just last week, there was the control shown in this (very blurry, sorry) photo. The planes were Boeing 787-8. It seems to be made of two half-circle buttons.



On the first plane, pressing the half buttons moved the blue light up or down. On the second, nothing happened. Nothing else seemed to change. I paid attention to the window and cabin light but nothing happened. Since these planes had no apparent window shade, I thought the control would operate a mechanism to act as shade.



What is this control for? What is doing something? Could it have been not operational on one or both planes? Seems an unlikely coincidence, particularly since the behavior of the blue light was different.



Control







aircraft






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asked Dec 4 at 0:41









Itai

28.5k968150




28.5k968150








  • 6




    gizmodo.com/5829395/…
    – Nate Eldredge
    Dec 4 at 1:06






  • 26




    Wings stay on, wings fall off.
    – Andrew Grimm
    Dec 4 at 4:11














  • 6




    gizmodo.com/5829395/…
    – Nate Eldredge
    Dec 4 at 1:06






  • 26




    Wings stay on, wings fall off.
    – Andrew Grimm
    Dec 4 at 4:11








6




6




gizmodo.com/5829395/…
– Nate Eldredge
Dec 4 at 1:06




gizmodo.com/5829395/…
– Nate Eldredge
Dec 4 at 1:06




26




26




Wings stay on, wings fall off.
– Andrew Grimm
Dec 4 at 4:11




Wings stay on, wings fall off.
– Andrew Grimm
Dec 4 at 4:11










1 Answer
1






active

oldest

votes

















up vote
36
down vote



accepted










It is windows shade adjustment. In the new B787 lines, you press up/down button to make the windows darker or brighter.



The process takes minutes so you might not be able to realize it. It's not as quick as a curtain.



The crew can control it to simulate the night on long flight. So the button will end up being useless during "night mode". They can also control it to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.






share|improve this answer



















  • 29




    "the process can take minutes" Truly we have come far
    – OganM
    Dec 4 at 3:30






  • 9




    The other reason the crew can control is is to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.
    – MSalters
    Dec 4 at 11:49






  • 1




    Can't help feeling that saying "Please lift the window shades before landing" is a simpler solution
    – user568458
    Dec 4 at 14:01






  • 2




    @user568458 Convenient in the case where the plane is not very full (admittedly does not happen often these days, and generally not on the fancier planes anyway) and a passenger has closed the shade in another row which is empty (e.g. on the opposite side of the plane)...since there is no passenger there to open it, and the passenger who originally closed it would have to get out of their seat to open it.
    – user3067860
    Dec 4 at 14:43






  • 6




    "The process takes minutes so you might not be able to realize it." - huh? Maybe I didn't perceive this very clearly as it was during a night flight, but when I tried this the first (and only, so far) time I flew on a 787, the lights on the outside became invisible almost instantly (i.e. in a matter of seconds) after pressing the down button to reduce window transparency to a minimum.
    – O. R. Mapper
    Dec 4 at 15:34













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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
36
down vote



accepted










It is windows shade adjustment. In the new B787 lines, you press up/down button to make the windows darker or brighter.



The process takes minutes so you might not be able to realize it. It's not as quick as a curtain.



The crew can control it to simulate the night on long flight. So the button will end up being useless during "night mode". They can also control it to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.






share|improve this answer



















  • 29




    "the process can take minutes" Truly we have come far
    – OganM
    Dec 4 at 3:30






  • 9




    The other reason the crew can control is is to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.
    – MSalters
    Dec 4 at 11:49






  • 1




    Can't help feeling that saying "Please lift the window shades before landing" is a simpler solution
    – user568458
    Dec 4 at 14:01






  • 2




    @user568458 Convenient in the case where the plane is not very full (admittedly does not happen often these days, and generally not on the fancier planes anyway) and a passenger has closed the shade in another row which is empty (e.g. on the opposite side of the plane)...since there is no passenger there to open it, and the passenger who originally closed it would have to get out of their seat to open it.
    – user3067860
    Dec 4 at 14:43






  • 6




    "The process takes minutes so you might not be able to realize it." - huh? Maybe I didn't perceive this very clearly as it was during a night flight, but when I tried this the first (and only, so far) time I flew on a 787, the lights on the outside became invisible almost instantly (i.e. in a matter of seconds) after pressing the down button to reduce window transparency to a minimum.
    – O. R. Mapper
    Dec 4 at 15:34

















up vote
36
down vote



accepted










It is windows shade adjustment. In the new B787 lines, you press up/down button to make the windows darker or brighter.



The process takes minutes so you might not be able to realize it. It's not as quick as a curtain.



The crew can control it to simulate the night on long flight. So the button will end up being useless during "night mode". They can also control it to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.






share|improve this answer



















  • 29




    "the process can take minutes" Truly we have come far
    – OganM
    Dec 4 at 3:30






  • 9




    The other reason the crew can control is is to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.
    – MSalters
    Dec 4 at 11:49






  • 1




    Can't help feeling that saying "Please lift the window shades before landing" is a simpler solution
    – user568458
    Dec 4 at 14:01






  • 2




    @user568458 Convenient in the case where the plane is not very full (admittedly does not happen often these days, and generally not on the fancier planes anyway) and a passenger has closed the shade in another row which is empty (e.g. on the opposite side of the plane)...since there is no passenger there to open it, and the passenger who originally closed it would have to get out of their seat to open it.
    – user3067860
    Dec 4 at 14:43






  • 6




    "The process takes minutes so you might not be able to realize it." - huh? Maybe I didn't perceive this very clearly as it was during a night flight, but when I tried this the first (and only, so far) time I flew on a 787, the lights on the outside became invisible almost instantly (i.e. in a matter of seconds) after pressing the down button to reduce window transparency to a minimum.
    – O. R. Mapper
    Dec 4 at 15:34















up vote
36
down vote



accepted







up vote
36
down vote



accepted






It is windows shade adjustment. In the new B787 lines, you press up/down button to make the windows darker or brighter.



The process takes minutes so you might not be able to realize it. It's not as quick as a curtain.



The crew can control it to simulate the night on long flight. So the button will end up being useless during "night mode". They can also control it to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.






share|improve this answer














It is windows shade adjustment. In the new B787 lines, you press up/down button to make the windows darker or brighter.



The process takes minutes so you might not be able to realize it. It's not as quick as a curtain.



The crew can control it to simulate the night on long flight. So the button will end up being useless during "night mode". They can also control it to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.







share|improve this answer














share|improve this answer



share|improve this answer








edited Dec 4 at 14:22









AndyT

1,4531022




1,4531022










answered Dec 4 at 0:45









Binh

72129




72129








  • 29




    "the process can take minutes" Truly we have come far
    – OganM
    Dec 4 at 3:30






  • 9




    The other reason the crew can control is is to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.
    – MSalters
    Dec 4 at 11:49






  • 1




    Can't help feeling that saying "Please lift the window shades before landing" is a simpler solution
    – user568458
    Dec 4 at 14:01






  • 2




    @user568458 Convenient in the case where the plane is not very full (admittedly does not happen often these days, and generally not on the fancier planes anyway) and a passenger has closed the shade in another row which is empty (e.g. on the opposite side of the plane)...since there is no passenger there to open it, and the passenger who originally closed it would have to get out of their seat to open it.
    – user3067860
    Dec 4 at 14:43






  • 6




    "The process takes minutes so you might not be able to realize it." - huh? Maybe I didn't perceive this very clearly as it was during a night flight, but when I tried this the first (and only, so far) time I flew on a 787, the lights on the outside became invisible almost instantly (i.e. in a matter of seconds) after pressing the down button to reduce window transparency to a minimum.
    – O. R. Mapper
    Dec 4 at 15:34
















  • 29




    "the process can take minutes" Truly we have come far
    – OganM
    Dec 4 at 3:30






  • 9




    The other reason the crew can control is is to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.
    – MSalters
    Dec 4 at 11:49






  • 1




    Can't help feeling that saying "Please lift the window shades before landing" is a simpler solution
    – user568458
    Dec 4 at 14:01






  • 2




    @user568458 Convenient in the case where the plane is not very full (admittedly does not happen often these days, and generally not on the fancier planes anyway) and a passenger has closed the shade in another row which is empty (e.g. on the opposite side of the plane)...since there is no passenger there to open it, and the passenger who originally closed it would have to get out of their seat to open it.
    – user3067860
    Dec 4 at 14:43






  • 6




    "The process takes minutes so you might not be able to realize it." - huh? Maybe I didn't perceive this very clearly as it was during a night flight, but when I tried this the first (and only, so far) time I flew on a 787, the lights on the outside became invisible almost instantly (i.e. in a matter of seconds) after pressing the down button to reduce window transparency to a minimum.
    – O. R. Mapper
    Dec 4 at 15:34










29




29




"the process can take minutes" Truly we have come far
– OganM
Dec 4 at 3:30




"the process can take minutes" Truly we have come far
– OganM
Dec 4 at 3:30




9




9




The other reason the crew can control is is to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.
– MSalters
Dec 4 at 11:49




The other reason the crew can control is is to brighten all windows during landing. This replaces the instruction to passengers to open all windows before landing (the usual routine; besides putting up tray tables and putting down arm rests). The rationale is that in case of an evacuation, passengers should be able to see whether evacuation on their side of the plane is safe i.e. no fires.
– MSalters
Dec 4 at 11:49




1




1




Can't help feeling that saying "Please lift the window shades before landing" is a simpler solution
– user568458
Dec 4 at 14:01




Can't help feeling that saying "Please lift the window shades before landing" is a simpler solution
– user568458
Dec 4 at 14:01




2




2




@user568458 Convenient in the case where the plane is not very full (admittedly does not happen often these days, and generally not on the fancier planes anyway) and a passenger has closed the shade in another row which is empty (e.g. on the opposite side of the plane)...since there is no passenger there to open it, and the passenger who originally closed it would have to get out of their seat to open it.
– user3067860
Dec 4 at 14:43




@user568458 Convenient in the case where the plane is not very full (admittedly does not happen often these days, and generally not on the fancier planes anyway) and a passenger has closed the shade in another row which is empty (e.g. on the opposite side of the plane)...since there is no passenger there to open it, and the passenger who originally closed it would have to get out of their seat to open it.
– user3067860
Dec 4 at 14:43




6




6




"The process takes minutes so you might not be able to realize it." - huh? Maybe I didn't perceive this very clearly as it was during a night flight, but when I tried this the first (and only, so far) time I flew on a 787, the lights on the outside became invisible almost instantly (i.e. in a matter of seconds) after pressing the down button to reduce window transparency to a minimum.
– O. R. Mapper
Dec 4 at 15:34






"The process takes minutes so you might not be able to realize it." - huh? Maybe I didn't perceive this very clearly as it was during a night flight, but when I tried this the first (and only, so far) time I flew on a 787, the lights on the outside became invisible almost instantly (i.e. in a matter of seconds) after pressing the down button to reduce window transparency to a minimum.
– O. R. Mapper
Dec 4 at 15:34




















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