I'm curious - what is meant by right and down thrust? Does this mean that the engine is physically angled down and right? Or is it just the effects of the spinning prop? I know on full scale single props there is a roll tendancy due the engine torque, so does angling the engine in the model help with this?

I'm awaiting my LT-40 ARF, so Im sure I'll be having to deal with this soon as well.

Peter