The article distinguishes between primary flight controls (rudder, ailerons, elevator) and secondary controls, which augment primary functions, enhance low-speed performance, or serve emergency roles.

There’s more than one way to gain a sense of control. The traditional view of a life in control is one in which an individual has taken actions to ensure success in both the near and long terms.

The distribution system, a key subset of the overall electric grid, provides power to residential, commercial and industrial customers. Voltage and reactive power management and control have been done ...