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Crosswind bug

  • vladx18
  • January 9, 2026 at 11:31 PM
1st Official Post
  • vladx18
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    • January 9, 2026 at 11:31 PM
    • #1

    When i m doing a crosswind landing,when i move the rudder to allign with the runway the wind power increases when turning into the wind direction and decreases when turning into the opposite direction.

  • Jet-Pack (IPACS)
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    • January 10, 2026 at 9:50 AM
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    • #2

    What wind power do you mean?

    Regards,

    Jan

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  • vladx18
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    • January 10, 2026 at 9:55 AM
    • #3
    Quote from Jet-Pack (IPACS)

    What wind power do you mean?

    The wind intensity,not direction. Like from 15 kts decreases to 5 kts or something like that.

  • Jet-Pack (IPACS)
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    • January 10, 2026 at 9:58 AM
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    • #4

    In the flight info? In the green HUD? On the aircraft navigation display ND?

    The display on the ND derives wind speed from the difference between inertial velocity and sensed airflow. During side slip the aircraft may not accurately predict the change in relative airflow by that sideslip and attributes that to a change in wind direction.

    Regards,

    Jan

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  • vladx18
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    • January 10, 2026 at 10:07 AM
    • #5
    Quote from Jet-Pack (IPACS)

    In the flight info? In the green HUD? On the aircraft navigation display ND?

    The display on the ND derives wind speed from the difference between inertial velocity and sensed airflow. During side slip the aircraft may not accurately predict the change in relative airflow by that sideslip and attributes that to a change in wind direction.

    Yes on ND,the direction doesn't change just the speed

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  • Jet-Pack (IPACS)
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    • January 10, 2026 at 2:45 PM
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    • #6

    Yes, as i explained in the last part of my previous post this is a mathematical result of how wind speed is derived. The computations don't account for side slip and that's why there is a displayed error. This would also be the case in the real world for some aircraft. I'm not 100% sure if the A320 family derives side slip angle from the air data probes or not. It certainly does not have a sensor for it.

    Regards,

    Jan

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  • vladx18
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    • January 10, 2026 at 3:31 PM
    • #7
    Quote from Jet-Pack (IPACS)

    Yes, as i explained in the last part of my previous post this is a mathematical result of how wind speed is derived. The computations don't account for side slip and that's why there is a displayed error. This would also be the case in the real world for some aircraft. I'm not 100% sure if the A320 family derives side slip angle from the air data probes or not. It certainly does not have a sensor for it.

    Ok thanks,keep up the good work!💪🏻

  • WAR_Capybara
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    • January 10, 2026 at 4:42 PM
    • #8
    Quote from vladx18

    Yes on ND,the direction doesn't change just the speed

    How did you get the blue dots?

    Best,

    War

    Aerofly Global (IOS) Iphone 12 Mini

  • vladx18
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    • January 10, 2026 at 5:42 PM
    • #9
    Quote from WAR_Capybara

    How did you get the blue dots?

    Those are the ref fix info,in fplan page on mcdu click on a random waypoint and in the right corner it will say fix info,in here you can put almost anything,a waypoint an aiport etc.Search on yt about fix info it really helps.

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  • WAR_Capybara
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    • January 10, 2026 at 5:44 PM
    • #10
    Quote from vladx18

    Those are the ref fix info,in fplan page on mcdu click on a random waypoint and in the right corner it will say fix info,in here you can put almost anything,a waypoint an aiport etc.Search on yt about fix info it really helps.

    Thank you:)

    Best,

    War

    Aerofly Global (IOS) Iphone 12 Mini

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