Diagnosis Needed - See videos

[adanac]

These results are from a new P2Z and these are the worst results I've ever seen. Vertical shake, constant small, involuntary yaw changes, etc. Dreadful. Even apart from all the shaking, I'm fairly certain I'm not changing the yaw that much. Something has to be very wrong with either the bird or the gimbal. Experts chime in!

https://www.youtube.com/watch?v=-mrFReo ... e=youtu.be
https://www.youtube.com/watch?v=qKPInZr ... 2ixGoE3sVw
https://www.youtube.com/watch?v=b4i3uuO ... e=youtu.be

(Sorry about the double posting - I was told the General discussion wouldn't likely be seen by video folks!)

 

[LuvMyTJ]

Looks like your links are broken.

 

[adanac]

Links repaired, thank you!

Looks like your links are broken.

 

[LuvMyTJ]

Is this from a Phantom 2 Vision? It also seemed very windy in the cemetery vid.

 

[adanac]

This is from a P2Z. It was windy but I don't know how to quantify "very."

I know I see P2 vids where you can see trees moving and the image is rock-solid.

Is this from a Phantom 2 Vision? It also seemed very windy in the cemetery vid.

 

[EMCSQUAR]

It also seemed very windy in the cemetery vid.

Do the same flight in cemetary (if possible) in attitude mode once. It appears you were in GPS mode and it was fighting the wind. Plus a little "softer touch" on YAW stick would help. The YAW action comes with practice.

 

[LuvMyTJ]

P2Z ? So your saying its a P2 with a gimbal & gopro? Never seen it referred to as a P2Z. Now I know.
Like mentioned, try a flight not in GPS and see if it still does it when drifting.

 

[adanac]

Many thanks. Actually, some of the flight was in GPS and some in attitude. Not sure what mode I was in for the video but perhaps GPS.

I'm going to put in a Futaba R2008SB receiver so that I can use my Futaba T8J with it. I'm hoping that it might help me to control the yaw a bit better, as well as allow manual flight and better gimbal control.

It also seemed very windy in the cemetery vid.

Do the same flight in cemetary (if possible) in attitude mode once. It appears you were in GPS mode and it was fighting the wind. Plus a little "softer touch" on YAW stick would help. The YAW action comes with practice.

 

[ianwood]

Involuntary yaw you just have to live with unless you get a 3D gimbal. ATTI helps but only if you drift with the wind. You definitely have something else going on. I'd guess the gimbal and Phantom IMUs are counteracting each other. Is there anything in your setup that isn't standard? Gimbal mounting? Have you changed gains?

 

[adanac]

I believe everything is stock and as it should be. The only thing I did was lower the yaw gains a bit hoping that if it was me leaning on the stick it wouldn't respond so dramatically.

Involuntary yaw you just have to live with unless you get a 3D gimbal. ATTI helps but only if you drift with the wind. You definitely have something else going on. I'd guess the gimbal and Phantom IMUs are counteracting each other. Is there anything in your setup that isn't standard? Gimbal mounting? Have you changed gains?