When it doesn't fly in the direction you tell it to

[stevefromsd]

Both my Phantom and Blade 350 QX sometimes fly in a different direction than I am telling it to with the RC. Sometimes forward is reverse. Sometimes left is forward etc. Why does this happen??? It doesn't do this all the time. If I am in a large open area I can figure out in time how to fly it back to me. But my Phantom once went right into a tree when I didn't have any room and time to figure which way to turn the RC when it went haywire again. This has happened with both Quads.

 

[LandYachtMedia]

What you are describing is pretty common with learning to fly. Spatial orientation is a skill that has to be developed. Do you think that for some reason you misjudged the orientation of the craft? It is super easy to do on a quad where its symmetry masks its orientation.

If you suspect there is a real problem with control you need to fly in an open area specifically to test it. Fly patterns like boxes and figure 8s. Those are great practice for you as a pilot anyway. Also turns on a point are great to see if you have any control stability issues.