esky rc helicopter
 

How far and high the remote control helicopter can fly?
Due to the higher altitude, the lower air density, so the helicopter flight altitude generally much lower than fixed-wing aircraft flight altitude, even so it has been far greater than our visual control distance and remote distance, soin terms of flight altitude and flight distance of the aircraft is decided to the remote control device's safe remote distance and visual distance. Generally particularly smaller body aircraft flight speed also up to 20 meters.