I've built a Junior 60 with 2 channels, after a few of flights resulting in crashes I am looking for some advice.
Take off is fine, but after the climb out the model continually loops until it hits the ground! On the one occasion where I was able to close the throttle at the right moment the model glided to a perfect landing, all be it a long way a way.
I assumed that the c of g is correct due to the glide being ok, and adjusted the thrust line to give a couple of washers down thrust. But it still looped under power
How much down thrust is safe, if indeed that is the issue.
Thanks