Agree with Montague,lot depends on the plane ,skill level and fear factor,trainer is fun to fly in 15 +mph winds but high risk of damage on landings,larger more trim plane can handle winds in the 15 to 25 mph, gets to be a bear to land if cross wind and gusting winds. Couple of years back was flying at a big bird event by a lake,the field was by the dam, and the winds were close to 30 mph,on landing the winds would pull the plane down at about 12 'above the runway,talk about pucker factor! Think the first couple hours we saw over 7 crashes and lots of planes with out landing gear. Here in the Dallas area a calm day is between 8 and 15 mph winds.[sm=spinnyeyes.gif]AND today I'm on this web and buildiing another plane because the weather is 70 degrees and wind gust over 40 mph[&o]