T1 ranger VTOL flips forward in QLOITER mode during take off

Hi,
When I arming the plane in QLOITER mode and trying to take off in some moment the plane just makes a flip forward. Seems like the front motors don’t have enough power to take off. Visually looks like the spin speed is the same for all 3 motors.

I guess I missed or did something wrong but not sure where to look into

Thank you in advance for any help.

Hi Dmytro,

As Oli1 already told you in the thread regarding your compass problem, please insert an SD card into the fligthcontroler so that log files can be recorded. Then please post a link to this *.bin file so that we can help you without guessing.

Rolf

1 Like

There is a short video with a problem uploaded om google drive. The motors and prop direction seem correct.
Any thoughts on why this is happening?