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P3D v4 AOA is jumpy in windy conditions

delivery guy

delivery guy

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Is there a good method to prevent the wind from making the AOA indicator jumpy? I never noticed this until recently that our AOA gauges we create get very jumpy in high wind conditions. Is this normal behavior?
Only solution i can think of is a bit of lag added to the code animation.
 
WarpD

WarpD

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In that case, yes a lag is probably the best approach. I have never used that value myself as I find it can be not as accurate as I prefer. All of the AOA gauges I have coded had values from 0 to 1... representing 0 to 100% lift potential of the wing. Maximum lift potential aligns with maximum angle of attack. So I typically calculated the current CL (coefficient of lift) and used it as a percentage of maximum CL for controlling the needle value.
 
Roy Holmes

Roy Holmes

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The AOA probe is designed to rotate in airflow so that its aerodynamic null is a fairly accurate indication of the direction of the airflow. It reacts to surface wind in a similar way. Surface wind is always turbulent, varying in strength and direction, so the AOA indication being jumpy is normal if the surface wind is high. Similarly jet exhaust from an airplane in front of you can give erratic AOA indications.
Roy
 
delivery guy

delivery guy

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Roy Holmes said:
The AOA probe is designed to rotate in airflow so that its aerodynamic null is a fairly accurate indication of the direction of the airflow. It reacts to surface wind in a similar way. Surface wind is always turbulent, varying in strength and direction, so the AOA indication being jumpy is normal if the surface wind is high. Similarly jet exhaust from an airplane in front of you can give erratic AOA indications.
Roy
Click to expand...
Thanks for your info.
 
n4gix

n4gix

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Anecdotally, I once invested a few hours animating the AoA vanes in an aircraft accurately. To my knowledge, no one ever noticed... :rotfl:
 
WarpD

WarpD

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Won't even mention that some aircraft don't use vanes, but rather some rather sophisticated tubes and sensors on the fuselage... oops... I just did. My bad!
 
Roy Holmes

Roy Holmes

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WarpD said:
Won't even mention that some aircraft don't use vanes, but rather some rather sophisticated tubes and sensors on the fuselage... oops... I just did. My bad!
Click to expand...
I think the question was why rather than how, at least that was my take.
Roy
 
WarpD

WarpD

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"Is there a good method" is the how... "Is this normal behavior" is the why... I'd say he asked both. But my second response was only in relation to Bill's post regarding animating the vane on the model.
 
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