Editing Servomechanism (section)

===Others===
Positioning servomechanisms were first used in military [[fire-control]] and [[marine navigation]] equipment. Today servomechanisms are used in [[CNC|automatic machine tools]], satellite-tracking antennas, remote control airplanes, automatic navigation systems on boats and planes, and [[antiaircraft]]-gun control systems. Other examples are [[fly-by-wire]] systems in [[aircraft]] which use servos to actuate the aircraft's control surfaces, and [[radio-controlled model]]s which use RC servos for the same purpose. Many [[autofocus]] cameras also use a servomechanism to accurately move the lens. A [[hard disk drive]] has a magnetic servo system with sub-micrometer positioning accuracy. In industrial machines, servos are used to perform complex motion, in many applications.