OK... you do have a challenge going on here... []

No problem, we just have to be patient.

First off, how old are you?? No insult but it makes the conversation a bit easier if we know if we are talking to a 10 year old or a 20 year old.

Next; flying with three channels is possible BUT more challenging than with four.

I would recommend that you install a fourth servo in the wings to allow ailerons. That having been said - I don't know if your radio or plane can handle ailerons. You may have to redesign the wings a bit to permit the installation.

This is where it could get complicated and I HIGHLY recommend that you go to your local club to find a 'Master Builder' that is willing to assist you in your build. He can show you more in 5 minutes than I can type in an hour. [:@]

As to the "Training Wheel" that you are talking about... many planes are 'Tail draggers' and the tail wheel is used in conjunction with the rudder to stear the plane on the ground. I would recommend that you hook it up and use it... unless of course your plane is a tricycle gear ... then I'm really confused.

Pictures would help and a local craftsman would be better for you.

Good Luck.