Given all the problems people are having I thought this warranted its own thread. After reading all the recent fly away stories, and suggestions by some that wind could be to blame, I did a little research. It turns out (and this will not be a surprise to experienced pilots) that wind speed does increase dramatically with height. The image below illustrates this point. To summarize this illustration, in areas with buildings, trees, or uneven surface, wind can more than double over the first hundred feet (30m). Then it can double again between 100 and 900 feet (270m). So, if your Phantom has a top speed of 34 MPH(15 m/s), and the wind is 20 MPH at ground level, you could experience a "fly-away" at 100 feet altitude. Or, if the wind is 10MPH at ground level, you could experience a "fly-away" at 900 feet. The wind speed gradient will be less of an issue over flat, un-forested ground or water.