RE: What is the difference between the OS FX and LA
Another example. Tower Fun-51 with 46LA is perfect. The idle adjustment is my only complaint about the 46LA. I have to tweak it several times during a day of flying. Other than that it's very simple to start with a chicken stick (one flip usually) and even though it's no power house it has more than enough power (not unlimitted vertical) for the plane with 11x5.