wow tough little bird first flight didn't go so well thought i had compass calibrated guess not took off in a little wind ended up on neighbors roof got it down and tried again still didn't have compass calibrated bye the way you don't want to turn the radio off if not calibrated flew into a field got it back then figured what i did wrong on the compass now have flown 2 more time with no problems at all like a say this is one tough bird bye the way it is a phantom 1