DJI Wookong yaws left

[flyingeyeafs]

Hello all on my skyjib8 heavy lift with axi4120/20 with 15/4 xoar wooden props when i take of in atti mode it yaws to the left slighty and stops. any idears anyone??? thanks

 

[VINHEX]

Could be a number of issues:

COG (Center of gravity) not correct in WKN
Gains need a little adjustment
Calibration of TX
Props, Motor ect

I would start with COG then gains as well as checking props-motors.

I had an issue with my F550 drifting a little and upped the gains solved it..

Plus just a plus give it a little time to settle in when priming up.

Only suggestions maybe someone else will tell different but this is where I would start

 

[DucktileMedia]

I had this same issue but to the right. it drove me nuts. I ended up selling the woochang because of this. Never did figure it out. I'm sure it was gains but I just never nailed it down.

 

[redridinghood]

Check the motor mounts are parallel to the ground and up the yaw gain substantially.

 

[flyingeyeafs]

Could be a number of issues:

COG (Center of gravity) not correct in WKN
Gains need a little adjustment
Calibration of TX
Props, Motor ect

I would start with COG then gains as well as checking props-motors.

I had an issue with my F550 drifting a little and upped the gains solved it..

Plus just a plus give it a little time to settle in when priming up.

Only suggestions maybe someone else will tell different but this is where I would start

Thank you i will try can you put the rudder gain on a manual control knob a well?

 

[flyingeyeafs]

have you any clever way of checking the motor mounts are parallel? many thanks

 

[quadcopters]

Hello all on my skyjib8 heavy lift with axi4120/20 with 15/4 xoar wooden props when i take of in atti mode it yaws to the left slighty and stops. any idears anyone??? thanks

Will be most likely the motors are not perfectly vertical .
Measure on a flat surface from the floor to the tip of one prop , then measure the other tip of the same prop.. measurements should be the same , this will ensure the sitting vertical.

Quadcopters

 

[Aerial Media Pros]

Start with the Rudder gain. Placing it on a control knob or slider will help you dial it in quickly.

Then check the indexing and vertical alignment of your motors. If you happen to have an old Record (I found some in a garage sale), you can remove the prop, and place the record on the prop shaft and tighten it down. That gives you an awesome surface area to use, and to get perfectly horizontal. You can put a small level on the record and get it close to perfectly level.

Hope this helps,

Patrick

 

[flyingeyeafs]

Will be most likely the motors are not perfectly vertical .
Measure on a flat surface from the floor to the tip of one prop , then measure the other tip of the same prop.. measurements should be the same , this will ensure the sitting vertical.

Quadcopters

Hi sorrty for the long delay i am still having proplems even when i raise the throttle in atti mode slowy it does not take of level some cases it tips over and still yaws to the left do you have any more idears please?

 

[PeterLester]

Taking off slowly leaves your machine in the ground effect which creates havoc with flight control. Does it still yaw left if you take off quickly then hover around 3 feet?

 

[flyingeyeafs]

Taking off slowly leaves your machine in the ground effect which creates havoc with flight control. Does it still yaw left if you take off quickly then hover around 3 feet?

to be honest i havent tried it freaks me out that its not moving right and if it goes wrong my baby is in:upset:

 

[PeterLester]

All my heli's and multirotors do the same thing if I try to take off too slowly and remain too close to the ground, i.e., fall over to one side or the other. Buming them straight up to 3 feet eliminates the sloppy takeoff. Think of trying to balance a pingpong ball on a tennis ball. That is what ground effect and prop wash does to VTOLs. Just makes sure you have all props rotating in the correct direction and the MR controller and GPS are all properly configured first or you will flip it over.

 

[nytram]

Yep get some hight m8 in a field with nothing near, this was my mistake as well once I got some hight everything became controllable and you get more time to react..

 

[flyingeyeafs]

DJI IMU Data lost

Taking off slowly leaves your machine in the ground effect which creates havoc with flight control. Does it still yaw left if you take off quickly then hover around 3 feet?

Hi everyone thanks for your help i have it in the air now with no yawing . all i have now, is the aircraft not sitting completley level, and the led stats flashing imu data lost as i go into the hover has any one got any idears on this? thanks

 

[SonicMedia]

Hi everyone thanks for your help i have it in the air now with no yawing . all i have now, is the aircraft not sitting completley level, and the led stats flashing imu data lost as i go into the hover has any one got any idears on this? thanks

you have it in the air with no yawing... do you want to share the solution?