ORIGINAL: Villa
The point that I am trying to emphasize is that the human body ability to estimate the safe air speed of a model decreases drastically the closer the plane is to flying directly toward you. Many believe that your depth perception will help you. If you google Depth Perception you will find that it is about 17 feet. Yes, feet. When the plane is landing near to directly in front of you, left to right or right to left, you have the best view to help you estimate the safe air speed. I have stalled it into the ground HARD many times in my 39 years of flying RC, and have noticed that this usually happens when the plane is very far from me; the angle between my line if sight and the plane path is very small.
That is so true that my instructor made me overshoot the final turns just before start final approaching to the landing strip, making a big semi-circle, so I could see the attitude better.
Turning into final leg too early is the main cause of undesired stalls.
When forced to approach toward myself, like during dead sticks, I try to focus on not to exceed the critical AOA (around 10 degrees) by looking at the top of the wing.
Stalls only happen for excessive AOA, never for insufficient air speed.