I've got a problem with my copter where it will drop in altitude, following a forward or backwards movement. It will recover back to the original altitude once I stop. The drop is generally around a meter, and it is a gradual drop.

I initially thought this was just caused by my flight controller being mounted slightly off to the right and behind centre on the frame (it's an ecilop), but I have just rebuilt it to have the FC exactly in the middle, and this drop still happens.

Does anyone else get this problem?

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Replies

  • Thanks Randy, I'll give that change a go.

  • Developer

    This is an aerodynamic effect.  It's actually the barometer that's seeing a pressure bubble around the top of the copter.  You can reduce the effect by reducing the contribution of the altitude estimate from the barometer.  Try changing the INAV_TC_Z to 7 (default is 5).

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