Hi I’m having a problem. MY frame is bumblebee frame and I’m using APM2.5. .While taking off and after taking off my quadcopter is taking with small angle. It continues to take yaw while it flies. I saw videos of APM quadcopter and I never seen such behavior. Any idea why this is happening? Please help.
Here is a video link of My quad flying in google drive . I am sharing the link. Please watch it and tell me what could be the remedy. please help.
link:
Thanks for sharing the video.
I would suggest checking out a few things
- Have you calibrated your radio properly, and make sure there is no trim on your Yaw sticks.
- Make sure the motors are mounted perfectly vertical, as sometimes they could be at a slight angle which could cause the rotation
- Make sure you have calibrated your compass properly, you can find out some more information on how to calibrate your compass here
Thank you very much. I have one more ques. How should I enter these declination info. into the mission planner? I mean this info. 
into this area of mission planner… how I should the represent the negative value in the red marked are of the mission planner? 
Simply enter a - sign in front of the number. But its better to do the calibration by rotating the quad as shown in the video
Thank you … but the Ques. is DO i HAVE to put that (-) sign in the minute box?
No you dont need to do that
Then where I’m gonaa put the negative sign as you have mentioned earlier?
You put the 
sign in the degrees box. 
Are you not doing the automatic compass calibration?