Is “flight director attitude indicator” an inside joke about flight directors?











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The flight director attitude indicator is the spacecraft equivalent of the attitude indicator (also called an artifical horizon) on an aircraft.



Why was the "flight director" part added to the name? Is this some inside joke about cranky flight directors?



FDAI



Not really related:
Attitude error needles on Apollo FDAI










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  • not sure, but possibly related: space.stackexchange.com/a/14815/12102
    – uhoh
    2 days ago










  • My guess would be that the term "flight director" here is used in the sense of computes and displays the proper pitch and bank angles. Not adding as an answer because "guess" isn't the same as "answer."
    – Wayne Conrad
    2 days ago






  • 1




    Not really related? Actually totally related.
    – Russell Borogove
    2 days ago















up vote
6
down vote

favorite












The flight director attitude indicator is the spacecraft equivalent of the attitude indicator (also called an artifical horizon) on an aircraft.



Why was the "flight director" part added to the name? Is this some inside joke about cranky flight directors?



FDAI



Not really related:
Attitude error needles on Apollo FDAI










share|improve this question






















  • not sure, but possibly related: space.stackexchange.com/a/14815/12102
    – uhoh
    2 days ago










  • My guess would be that the term "flight director" here is used in the sense of computes and displays the proper pitch and bank angles. Not adding as an answer because "guess" isn't the same as "answer."
    – Wayne Conrad
    2 days ago






  • 1




    Not really related? Actually totally related.
    – Russell Borogove
    2 days ago













up vote
6
down vote

favorite









up vote
6
down vote

favorite











The flight director attitude indicator is the spacecraft equivalent of the attitude indicator (also called an artifical horizon) on an aircraft.



Why was the "flight director" part added to the name? Is this some inside joke about cranky flight directors?



FDAI



Not really related:
Attitude error needles on Apollo FDAI










share|improve this question













The flight director attitude indicator is the spacecraft equivalent of the attitude indicator (also called an artifical horizon) on an aircraft.



Why was the "flight director" part added to the name? Is this some inside joke about cranky flight directors?



FDAI



Not really related:
Attitude error needles on Apollo FDAI







avionics






share|improve this question













share|improve this question











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share|improve this question










asked 2 days ago









Dr Sheldon

2,6931035




2,6931035












  • not sure, but possibly related: space.stackexchange.com/a/14815/12102
    – uhoh
    2 days ago










  • My guess would be that the term "flight director" here is used in the sense of computes and displays the proper pitch and bank angles. Not adding as an answer because "guess" isn't the same as "answer."
    – Wayne Conrad
    2 days ago






  • 1




    Not really related? Actually totally related.
    – Russell Borogove
    2 days ago


















  • not sure, but possibly related: space.stackexchange.com/a/14815/12102
    – uhoh
    2 days ago










  • My guess would be that the term "flight director" here is used in the sense of computes and displays the proper pitch and bank angles. Not adding as an answer because "guess" isn't the same as "answer."
    – Wayne Conrad
    2 days ago






  • 1




    Not really related? Actually totally related.
    – Russell Borogove
    2 days ago
















not sure, but possibly related: space.stackexchange.com/a/14815/12102
– uhoh
2 days ago




not sure, but possibly related: space.stackexchange.com/a/14815/12102
– uhoh
2 days ago












My guess would be that the term "flight director" here is used in the sense of computes and displays the proper pitch and bank angles. Not adding as an answer because "guess" isn't the same as "answer."
– Wayne Conrad
2 days ago




My guess would be that the term "flight director" here is used in the sense of computes and displays the proper pitch and bank angles. Not adding as an answer because "guess" isn't the same as "answer."
– Wayne Conrad
2 days ago




1




1




Not really related? Actually totally related.
– Russell Borogove
2 days ago




Not really related? Actually totally related.
– Russell Borogove
2 days ago










1 Answer
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accepted










No, it's not an inside joke -- though after the FDAI was named, the name may have contributed to jokes! In avionics, a "flight director" is:




...an instrument system consisting of electronic components that compute and indicate the aircraft attitude required to attain and maintain a preselected flight condition. A command bar on the aircraft’s attitude indicator shows the pilot how much and in what direction the attitude of the aircraft must be changed to achieve the desired result. ...



Essentially, a flight director system is an autopilot system without the servos. All of the same sensing and computations are made, but the pilot controls the airplane and makes maneuvers by following the commands displayed on the instrument panel.




The FDAI, in addition to indicating the current attitude, has three needles (marked on your diagram) which indicate the attitude error in each axis -- i.e. how far off a desired orientation the spacecraft is in roll, pitch, and yaw. Those error needles serve as the "flight director". Once the position of the error needles is zeroed, the spacecraft is in the desired attitude.






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    1 Answer
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    up vote
    12
    down vote



    accepted










    No, it's not an inside joke -- though after the FDAI was named, the name may have contributed to jokes! In avionics, a "flight director" is:




    ...an instrument system consisting of electronic components that compute and indicate the aircraft attitude required to attain and maintain a preselected flight condition. A command bar on the aircraft’s attitude indicator shows the pilot how much and in what direction the attitude of the aircraft must be changed to achieve the desired result. ...



    Essentially, a flight director system is an autopilot system without the servos. All of the same sensing and computations are made, but the pilot controls the airplane and makes maneuvers by following the commands displayed on the instrument panel.




    The FDAI, in addition to indicating the current attitude, has three needles (marked on your diagram) which indicate the attitude error in each axis -- i.e. how far off a desired orientation the spacecraft is in roll, pitch, and yaw. Those error needles serve as the "flight director". Once the position of the error needles is zeroed, the spacecraft is in the desired attitude.






    share|improve this answer



























      up vote
      12
      down vote



      accepted










      No, it's not an inside joke -- though after the FDAI was named, the name may have contributed to jokes! In avionics, a "flight director" is:




      ...an instrument system consisting of electronic components that compute and indicate the aircraft attitude required to attain and maintain a preselected flight condition. A command bar on the aircraft’s attitude indicator shows the pilot how much and in what direction the attitude of the aircraft must be changed to achieve the desired result. ...



      Essentially, a flight director system is an autopilot system without the servos. All of the same sensing and computations are made, but the pilot controls the airplane and makes maneuvers by following the commands displayed on the instrument panel.




      The FDAI, in addition to indicating the current attitude, has three needles (marked on your diagram) which indicate the attitude error in each axis -- i.e. how far off a desired orientation the spacecraft is in roll, pitch, and yaw. Those error needles serve as the "flight director". Once the position of the error needles is zeroed, the spacecraft is in the desired attitude.






      share|improve this answer

























        up vote
        12
        down vote



        accepted







        up vote
        12
        down vote



        accepted






        No, it's not an inside joke -- though after the FDAI was named, the name may have contributed to jokes! In avionics, a "flight director" is:




        ...an instrument system consisting of electronic components that compute and indicate the aircraft attitude required to attain and maintain a preselected flight condition. A command bar on the aircraft’s attitude indicator shows the pilot how much and in what direction the attitude of the aircraft must be changed to achieve the desired result. ...



        Essentially, a flight director system is an autopilot system without the servos. All of the same sensing and computations are made, but the pilot controls the airplane and makes maneuvers by following the commands displayed on the instrument panel.




        The FDAI, in addition to indicating the current attitude, has three needles (marked on your diagram) which indicate the attitude error in each axis -- i.e. how far off a desired orientation the spacecraft is in roll, pitch, and yaw. Those error needles serve as the "flight director". Once the position of the error needles is zeroed, the spacecraft is in the desired attitude.






        share|improve this answer














        No, it's not an inside joke -- though after the FDAI was named, the name may have contributed to jokes! In avionics, a "flight director" is:




        ...an instrument system consisting of electronic components that compute and indicate the aircraft attitude required to attain and maintain a preselected flight condition. A command bar on the aircraft’s attitude indicator shows the pilot how much and in what direction the attitude of the aircraft must be changed to achieve the desired result. ...



        Essentially, a flight director system is an autopilot system without the servos. All of the same sensing and computations are made, but the pilot controls the airplane and makes maneuvers by following the commands displayed on the instrument panel.




        The FDAI, in addition to indicating the current attitude, has three needles (marked on your diagram) which indicate the attitude error in each axis -- i.e. how far off a desired orientation the spacecraft is in roll, pitch, and yaw. Those error needles serve as the "flight director". Once the position of the error needles is zeroed, the spacecraft is in the desired attitude.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited 2 days ago

























        answered 2 days ago









        Russell Borogove

        76.6k2241330




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