Hbv2 Tail problems

Ever since i got this guy, the tail has either wagged or my heli just like to turn on its own. Ive trimmed it and messed with the proportions etc. Seems to be trimmed fine then like 3 min into flying, the heli's tail gets super twitchy.
Anybody else have this problem?

Mine does exactly the same thing and I am yet to figure out!!!!

Flys perfect for the first few minutes of flight and then takes a lot more control towards the end of the flight. This is the second 4in1 (first one went up in smoke on a crash) and it does the same thing.

I gave up and just think of it as extra practice at my control skills....

Your not the only one.


J.

found a temp solution... at least on my hbv2. My heli tail goes CC around 3 min. Seems to correct itself with full right rudder trim. You might still go a lil to the left but its an easy counter with the controls. Just flew her 6-7 min fine.



That heli has some good power, and great lift with wooden blades.

I think the problem is with the gyro. I have mine set the gain to max.
With my current setting, the heli will do CC for the first 3-4 mins and then do a clockwise for the rest of the battery. I happen during hover, but when you do FF, I don't think it's a problem, since you have to control the tail anyway.
I'm used to and no problem during FF

When I had sort a problem my tailmotor just died.
Gues I am lucky again