Electromechanical Actuators (EMAs) offer great advantages over their traditional counterparts (namely old Hydromechanical and modern Electrohydraulic Actuators) when used as actuation devices on aircraft. They represent the natural evolution of actuation systems in the more electric and all electric aircraft design philosophies, as using EMAs for both primary and secondary flight controls would eliminate the need for hydraulic and pneumatic power aboard the aircraft, leading to an overall weight reduction and a more convenient way to distribute mechanical power across the aircraft, as distributing electrical power directly to the end users is easier and lighter than distributing pressurized hydraulic fluid. Still, as of today, the use of EMAs is limited to secondary flight control (such as airbrakes, spoilers and high-lift devices) on large aircraft, and they are used as primary flight control actuators only on small UAVs, and, in general, application where the loss of actuation system is neither mission critical nor would lead to loss of life or expensive flying systems.