Thanks RCKen. You've pretty much convinced me that using Expo or EPA is not a good option for student pilots.

Maybe you can offer some more related advice. The trainer I have is a powered glider type. It has no landing gear so it has to be hand launched. Where I have the most difficulty is in the hectic few seconds immediately following the launch. I am using one hand to launch & the other to hold the radio with a thumb on the rudder/elevator stick. Once I'm airborne, the controls become much more manageable.

I realize that some one to hand launch the model would help, but a hand launch by an un-skilled person can be more dangerous than what I'm doing. Short of getting a plane with landing gear, what can I do?