Unfortunately my problem persists... A while back I had a problem where my quad would be flying perfectly and then with out warning it would flip and plough into the ground. I got some great solutions from a few of you and tried them all.
I am now on whatever the latest code is (v2.5.[something]) and I have soldered all of my ESC-to-motor connections.
This morning I was flying nicely I was contesting with a mild wind and HORRIBLE PIDs. When suddenly it flipped AGAIN!! I thought that it was fixed as it has not flipped in over twenty flights but alas it has not. I did notice this time that I was not a very violent flip like with v2.4.1, it was slow and also I noticed that I did not has control, I tried to correct but nothing seemed to happen.
Please could someone drop some knowledge bombs! I'm not going to fly again until I have a new thing to try, I really am getting annoyed with buying new props EVERY WEEK!!!!!
Below is the video of the crash in v2.4.1:
That is a brilliant idea! I will check it out and find myself a BEC. That could be what is going down :)
Ok so I have checked out my ESC's manual. Each one has its own UBEC that can provide 5v at 2A so I don't think that could be the problem unless the APM is extremely power hungry! The other thing is I don't have telemetry at all... I'm thinking that possibly I have enabled GPS by mistake because I watched my friend's quad flip in Loiter...
It's possible that the wobbliness (you mentioned poor PID) and the flip are actually caused by the recent problems uncovered relative to the APM2 Gyro calibration issue. I would wait until 2.5.5 is released, and then try again.
I say this because Wesley Chuen experienced an unexplained flip of a helicopter likely due to this issue. Helicopters are aerodynamically stable, so they pretty much don't flip unless the APM makes them flip.
Probably as good a guess as any. It's worth a shot.
It's a configureable parameter now. (RC_Speed) You can set it to what you want.