У вашего броузера проблема в совместимости с HTML5
In the KeeCat 65 EDF 3rd Flight we have a better CG point which has allow me the push the KeeCat around a little better most of the flight is at half throttle with only 2384mAH's used on this flight as the (110mm 10's fan setup) pushes the KeeCat around with ease, better landing gear are needed.