The definition of a split control is a system of operating a vehicle or aircraft in which the pilot has separate control of the throttle and the brakes. This type of system is used to give the pilot more control over the speed and direction of the vehicle or aircraft. It is especially useful in situations where the pilot needs to make quick changes in speed or direction. With a split control system, the pilot can easily adjust the throttle and brakes independently, allowing for greater precision and control. This type of system is also beneficial in emergency situations, as it allows the pilot to make rapid changes in speed and direction to avoid potential hazards. Split control systems are also beneficial for pilots who are new to flying, as it allows them to gain a better understanding of how the aircraft responds to their commands.