ORIGINAL: Villa
It is my opinion that when the plane is far away from you, you have no idea where it is located, relative to a fixed object, such as the beginning of the runway. You have to learn to compensate for this human inability to determine the location of our RC plane relative to another object at a ''far'' distance. I do it by coming in for a landing ''relatively high'' at the end of the runway, and then aiming to touch down near to ''directly in front of me''. I look forward to any comments on this.
Our eyes are separated by 3"; hence, any triangulation at distance is impossible.
One thing that I have learned is that during approach, the shape of the plane in the sky is not to move too much respect to clouds and trees, since it should be descending towards me in a straight and inclined line.
During the high and far stage of the approach, my brain is judging distance and altitude by the size of that approaching shape, which is in my memory from previous landings of that specific plane.
The last stage is the tricky one, because the top of the trees are closer and the shape starts moving towards a point in front of my location.
However, two new things are helpful: the shade of the plane, and the lateral view of the fuselage.
There is a fence on the East end of our runway that caught many planes during final approach.
We made a scale shape in plywood of a standing man and placed against the fence.
After that, no more planes have crashed there.
I believe that the shape has been a great reference for the pilots for mentally comparing the size of the approaching plane respect to the man's shape.