It seems after searching several sites that not many people are using a tricopter? and even less still with the new APM2.0? anyone got any advice, problems, PID settings that work well? mine is nearly there, RTL, Alt hold and Loiter seem to work o.k but only 70% of the time? when they dont work the copter just shoots off in a random direction until its nearly in the ground or out of controllable sight so I am a bit dubious to test it with waypoints e.t.c in case I never see it again? does the APM work better with other frames? any tips advice are very welcome...

Edit: After much studying all of the above problems were down to not understanding the code and how things work, I am pleased to say that I do now understand and have no issues with the board or software, and am glad to do things this way as I have learned alot and enjoyed the rewards..

Tags: PID, Tricopter, Tuning

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I expect you need to reverse the tail servo...

It's reversed, when I move the stick to the left, the motor is tilting to the right, and when I move it to the right, motors tilts left. I just checked now.

Yes that may be so but when you hold the tri in your hand with the motors running and rotate it clockwise for example does the motor tilt to the right?

You will probably find that it tilts to the left?

Yeap , you are right, the motor doesn't tilt's in the right direction if I rotate the tricopter with my hand.

I'm googling now to see how to reverse it. 

If you have a link or something I'll appreciate :)

Ovidiu I have sent you a friend request. Give me your Skype name there and we can solve the problems over Skype, it will be much quicker..

Thank Dean, I just sent you a contact request on skype (did not received any request yet from you).

I'm conecting the board again to USB and tri to change that, after that I will check it outside ... even if it's night in here, at low altitude it's no problem.

I sent you one on skype? you dont know my Skype name? do you?

I meant friend request on this website..

There was an option in MP config to reverse this (it was wrong in 2.5.4, I had patched it by hand in mine, but supposedly in 2.5.5 it was fixed). When you said you reversed the YAW channel, did you do that in the radio?

If so, put it back and find the CH7/YAW reverse checkbox in MP, that's what you'll need to fix this problem so when the copter turns, it compensates in the proper direction. I'm not at a place where I can check my config, but if you can't find it let me know and I'll check as soon as I can.

That is right Luke.. Its under the mission planner radio config, or it can be changed via the parameters list.

This thread has been helpful.  I am using the latest version on the MP which is 1.2.27.  I don't see where you can change channel 7 to move right when the copter moves clockwise.  I have been trying to do it with the radio, but not having any luck.  The Std. Parameter and Advanced Parameters are ridiculous for a non computer programer.  I see why people use the NAZA except it doesn't support tricopters yet.   What do I do to change the direction the servo reacts to movement?  The KK board you just put the servo on a different output.   

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