As I got out of my truck and looked toward the west I thought to myself be careful the sun is setting.I should have listened to myself but I just got the tracking perfect and was having a great time flying my T-rex.All of a sudden the heli disappeared because the sun was directly in my eyes blinding me.Well needless to say I had a very hard tail boom strike.So now I have to replace the blade grips,tail boom,tail case,tail linkage rod and main blades.So be careful of the setting sun.