fishycomics,

                  With a brushless outrunner motor and a 1000 milliamp lipo battery I'm getting close to twenty mins
flight time at half throttle, less in windy conditions.
           
A local kite shop was at our flying field with one of their RC kites and although it looked neat it was not 
constructed nearly as robustly as the electric airplanes nor could it handle windy conditions as well as the airplanes.
                                            
                                                 Happy flying, Oscar