Ok, whats an Leonardo ARF?? I can't find it on the list of planes from Tower Hobbies. If its one of those small park flyers then you may not get much response here. Park flyers tend to be very fragile, underpowered and can only be flown in light breezes. As such most RC clubs don't consider them to be good trainers. You don't need to spend a whole bunch on a decent trainer. You can get a Tower Hobbies 40 trainer ARF for $70.00. I would consider one of these as a minimum. If you go any smaller or cheaper, then you are wasting yout time. http://www2.towerhobbies.com/cgi-bin...?&I=LL1142&P=1