I think what you will find as you investigate more is that the wings on most of our model aircraft fly at a very shallow AOA in their normal flight mode. Obviously this is somewhat airfoil and wing loading dependent. An example would be with a 20oz wing loading and a symmetrical airfoil the wing will support the aircraft weight at around .75 to 1 degree of AOA. At normal flying speed any additional AOA simply results in a climb. The airflow in relation to airplane travel attitude remains fairly constant. landing speeds may see the AOA at as little as 5 degrees.