Hi Chris,

Yes, it's kind of like out of balance meaning that the plane will not fly straight. It will want to either bank one way or another or dive or balloon up by itself. Unless you can build the plane perfectly straight (or if you do reviews for some magazines ) most planes will need some trimimg (via the trim tabs on your radio) first time out. Also, you should make sure that your plane balance at the CG after you have installed all the flight equipment.

Advise that you get help your first time out. After that, you can determine for yourself if you can go at it alone.