Originally Posted by radiisteve

I'm surprised nobody mentioned wing and stab incidences at all. All elements, engine down thrust to the left, balance (a touch nose heavy is always safer than not), and wing/stab incidence all play a role in how an airplane comes off the bench to fly. Any of which can effect what happens to a plane. If it jumps off the ground with high/full throttle with trims set level then I'd wonder about incidence and engine first. Being tail heavy would be a secondary reaction once the plane got up in the air. But in all cases for me, I would check each and everything separately to be sure each element was correct and we weren't missing something important. Everything has to work together in harmony, and when it does you have a smooth flying plane.

Originally Posted by rcmiket

The Avistar is a ARF and everything is set from the factory. I own one and did a electric conversion. It does none of the stuff the OP has said his does. His CG has to be off. 100 grms of weight in the tail ?
I also know of 2 others that are glow and none of those required tail weigh either. Something ain't right there.

Mike