Turbulence causing nose to go in circles
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That sounds like errant behavior. If the wind increases suddenly, the result should be the FPM moving, not the nose.
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Hmm. Although in a crosswind, you get wind from one side, and your flight path fixed to the ground is displaced the opposite direction. So I guess you can have an angle between the relative airflow and the FPM.
Actually no. In this case the relative airflow is still coming from opposite the velocity vector - however relative to the ground, the entire patch of air is moving, causing the FPM to be displaced. The relative airflow is still opposite VV.
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That sounds like errant behavior. If the wind increases suddenly, the result should be the FPM moving, not the nose.
That is what I thought too, that the fpm would move, but it’s like the aircraft self compensate for the increased wind.
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That is incorrect behavior. The FPM should react to the wind, not the nose. Ill have to see if it does it for me, too…
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That is incorrect behavior. The FPM should react to the wind, not the nose. Ill have to see if it does it for me, too…
It does to me when I go between stp5 &6 in the maverick TE.
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the fpm moves then the aircraft body reacts……
this is how it moves in BMS turbulences…no idea what is describing the OP
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This is when i go between stp 6&7 (wrong in last post):
30 sec in the video you can see that my nose reacts on the wind increase and the fpm is almost not moving, or moving towards the wind. I just dont understand why it does that.
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This is when i go between stp 6&7 (wrong in last post):
30 sec in the video you can see that my nose reacts on the wind increase and the fpm is almost not moving, or moving towards the wind. I just dont understand why it does that.
nothing wrong with that…just normal turbulences…fpm and Body are moving…
The body moves weirdo because the FLCS reacts to the turbulence, so makes the whole Body react differently than natural behaviour would be expected
btw, this weather type looks great
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nothing wrong with that…just normal turbulences…fpm and Body are moving…
The body moves weirdo because the FLCS reacts to the turbulence, so makes the whole Body react differently than natural behaviour would be expected
btw, this weather type looks great
Well, it’s your weather love the way the clods lays over the mountain tops, hard as h*ll to find targets and aim Mavericks though
Is it the FLCS that react to the increased wind as well? At 0:30 and forward there isn’t much turbulence but the wind increases and decreases, if I read it correct, the wind is coming from my left, and as the wind increase my nose is going left, at some point the wind reach 29-30 and as the nose point more left the fpm goes left too. So I don’t have to correct my flight path as the wind increase. I’m sort of flying into the wind without any input. I just thought that the fpm would move right if the wind increase and that I would have to correct my AC to the left. -
at 0:36 , there is a burst from left to right, the FPM moves right with the scale, the noze remains nearly steady, this is expected behavior
be careful with optic effect, this is your FPM scale that moves (many degrees variation) , not your noze (limited to 1 deg…)…check your heading in the head, it remains steady during the burst since the heading is the direction where the noze points
and yes the FLCS compensates from this Beta angle increase by applying a little bit of rudder…small magnitude though
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The FLCS rudder augmentation prevents a slip/slide condition that can cause a Dutch roll. The ac is crabbing witch causes it’s corse to drift from the nose heading. The 16 is more stable in crab than slip/slide’n.
Xwind can cause the nose to change heading depending on the winds change in velocity and vector. Most of the time nose moves only a small amout during a gust because the wind vector is the same however drift increases causing the fpm to move.
Me thinks -
at 0:36 , there is a burst from left to right, the FPM moves right with the scale, the noze remains nearly steady, this is expected behavior
be careful with optic effect, this is your FPM scale that moves (many degrees variation) , not your noze (limited to 1 deg…)…check your heading in the head, it remains steady during the burst since the heading is the direction where the noze points
and yes the FLCS compensates from this Beta angle increase by applying a little bit of rudder…small magnitude though
Lol, thank you Mav, I see that now, it was my eyes fooling me, thanks again for sorting me out.
Regards
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As a c130 pilot, aircraft tries to head up the wind. That is because it is the minimum energy situation. The bigger the tail the bigger is this effect. I don’t have hud, but have a track pointer in the hsi. Supposing left wind, the effect will be an small yaw to the left and a change in track to the right. The yaw due to the effect in the tail, the change on track (fpm) due to the relative movement of the air mass and the ground.
In f16 I should expect the same but I thing that FCLS minimizes the yaw movements, but still it should have a small movements. FCLS corrects it near real time, but no instantaneous.
My two cents
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As a c130 pilot, aircraft tries to head up the wind. That is because it is the minimum energy situation. The bigger the tail the bigger is this effect. I don’t have hud, but have a track pointer in the hsi. Supposing left wind, the effect will be an small yaw to the left and a change in track to the right. The yaw due to the effect in the tail, the change on track (fpm) due to the relative movement of the air mass and the ground.
In f16 I should expect the same but I thing that FCLS minimizes the yaw movements, but still it should have a small movements. FCLS corrects it near real time, but no instantaneous.
My two cents
it has yaw movement ….here the burst is only 4 knots so the movement is small, but create 15 kts burst you will see the girouette effect