Yep, happened to me too. In fact, just this year, and I've been flying for about 30. I was dang lucky as I flew an entire flight with my CG Skylark, and not all right in front of me either. It was after I landed I noticed I hadn't extended the antenna. You'd think one would feel the lack of that little inertia the extended antenna creates when you move the transmitter, but I sure didn't. You can bet I kissed that radio when I saw what I'd done and that it gave perfect control for the whole flight!