I have seen too many posts about MP flyaways, crashes, etc., and wonder how much wind comes into play rather than technical issues. Whether manned aircraft or unmanned, wind can be your worst enemy!!! Wind can vary greatly at surface and aloft. A wind at surface level from the SW at 5 mph can translate to NE winds at 20 mph at 50' (wind shear)! And wind speed and direction can be altered by surface structures like buildings and trees, etc. Be serious about checking weather reports before flying. Did you know that those puffy white clouds means atmospheric instability (updrafts and downdraft)? We fly in the air. Take some time to learn basic meteorology.