Pitch vibration of a small VTOL plane

ArduPlane VTOL Plane
1

Hi, I have converted AtomRC Dolphin Pro to VTOL.

I conducted Quicktune and Fixedwing Autotune.

Autotune went to Level 6 and then again to Level 9.

I see high speed pitch vibrations on an automatic flight. What are the solutions?

FC : Matek H743 Wing V3 (Arduplane 4.6.2)
GPS : Holybro Micro M10
Quad Motor : 2807 1300KV
Quad Prop : 7x5.5
Quad ESC : MAMBA STACK 55A
FW Motor : 3115 900KV
FW Prop : 10x6
FW ESC : 80A
Servos : GDW 041MG (Servo rail voltage 7.2V)
Battery : 6S 6300mAh 60C

1
11400×1050 488 KB

3
31050×1400 177 KB

1 Like
2

Hello,

Looking at your log, the oscillation appears to be in response to an overactive pitch integrator. Try reducing PTCH_RATE_I to half it’s current value (may need to reduce more).

3

Thank you for your response.
It’s completely destroyed at the moment, so I’ll try with the second plane.

1 Like