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unstable hovering

Discussion in 'Standard/4k Discussion' started by jbuzalic, Jan 15, 2016.

  1. jbuzalic

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    i have a 3 p standard and it tends to go down. a foot or two when it is hovering
    is this normal?


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  2. GodFear17

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    Yea when you first start flying it'll do that but then figure it out and be good. Auto take off will stop this behavior


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  3. Mark The Droner

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    You're talking about the initial launch-hover, right?

    I think there is some fuzzy math going into the launch and that causes the craft to make adjustments a few secs after the launch. Since the altitude is calculated by air pressure, and since the accelerating props blow air into the ground around the phantom, the air pressure builds significantly just before it lifts. Ordinarily that would mean the aircraft is dropping in altitude, but it hasn't launched yet. So the algorithm allows for this and tries to correct for that adjustment. Then after you launch, the software in the next few secs readjusts to what it believes is correct. So this will cause a little bouncing the first few secs but it should level out quickly...
     
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  4. jbuzalic

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    it make sense
    thank you


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