Well today at the field I believed I had a brown out or lockout. I was training someone with the RC Club of Embry Riddle and I did a touch and go and didnt have control of the plane. It bank over hard and I held full opposite direction to save it and I had nothing. At the last minute I got it back and saved it. Almost past out since it isnt my plane it is the Club's plane. The plane is stock how it comes RTF. I am thinking upgrading to a 6 volt battery instead of 4.8. The batteries were fully charge and the antennas were fine. I was curious to know if anyone else has had this problem. If I have to I will just throw a Futaba FASST in there before I loose a perfect trainer to this or upgrade a RX.