Hydro fly hydro fly is completely unlike any other radio controlled model youve ever seen this unlimited hydroplane racer takes off into the air from water or any other hard surface like concrete with a simple tap of a button your hydro fly will climb skyward at your command yes you just read that correctly you name it speed incredible acceleration and unbelievable maneuverability and the hydro fly has got it on land on water and in the air all wrapped up in one wild ready to run