I had the e-flite apprentice, and I must have built it wrong, or maybe it was windy, but I could establish no control over it. Sometimes it would do what I told it to do, and sometimes it would do the exact opposite or something incredibly random. I wrecked it every time I flew it after 2 min. in the air. I blamed it on my lack of experience building, and maybe the wind. The last flight it started flying high in circles out of control and went far far away. I never found it after that. I still don't know why it did all of that. Wind? Bad build?...