It may be a little strong for it, but if you practice throttle management it will be fine. I had a 46 Pro on a tower 60 trainer and it moved out wonderfully. A 40 sized trainer will take some thought about how to not give it full throttle all the time. Remember, most trainers inherantly change trim the more throttle you give them. I found out, that the more reserve power a trainer has. And, the better chance you have of recovering from a bad (stalled) landing. Good luck.