An electro-hydrostatic brake system comprising: a motor configured to be in electronic control communication with a motor controller; a pump mechanically coupled to the motor; a hydraulic tank fluidly coupled with the pump; a hydraulic pressure rail fluidly coupled with, and in fluid receiving communication with, the pump; a brake actuator in fluid communication with the hydraulic pressure rail and configured to exert a braking force on a wheel, wherein the braking force is directly modulated by at least one of the motor and the pump without use of a hydraulic pressure metering valve; and a hydraulic return rail in fluid communication with the brake actuator and the hydraulic tank, wherein the hydraulic return rail is separate from the hydraulic pressure rail; and characterised by: a displacement sensor coupled to the brake actuator and configured to be in electronic feedback communication with the motor controller; wherein the brake actuator is a first brake actuator of a plurality of brake actuators (130A-D) in fluid communication with the hydraulic pressure rail and the hydraulic return rail; wherein the plurality of brake actuators is configured to exert the braking force on the wheel; and wherein there is no mechanism for stepping down the pressure between the pump and the plurality of brake actuators along the hydraulic pressure rail. a motor configured to be in electronic control communication with a motor controller; a pump mechanically coupled to the motor; a hydraulic tank fluidly coupled with the pump; a hydraulic pressure rail fluidly coupled with, and in fluid receiving communication with, the pump; a brake actuator in fluid communication with the hydraulic pressure rail and configured to exert a braking force on a wheel, wherein the braking force is directly modulated by at least one of the motor and the pump without use of a hydraulic pressure metering valve; and a hydraulic return rail in fluid communication with the brake actuator and the hydraulic tank, wherein the hydraulic return rail is separate from the hydraulic pressure rail; and characterised by: a displacement sensor coupled to the brake actuator and configured to be in electronic feedback communication with the motor controller; wherein the brake actuator is a first brake actuator of a plurality of brake actuators (130A-D) in fluid communication with the hydraulic pressure rail and the hydraulic return rail; wherein the plurality of brake actuators is configured to exert the braking force on the wheel; and wherein there is no mechanism for stepping down the pressure between the pump and the plurality of brake actuators along the hydraulic pressure rail. a displacement sensor coupled to the brake actuator and configured to be in electronic feedback communication with the motor controller; wherein the brake actuator is a first brake actuator of a plurality of brake actuators (130A-D) in fluid communication with the hydraulic pressure rail and the hydraulic return rail; wherein the plurality of brake actuators is configured to exert the braking force on the wheel; and wherein there is no mechanism for stepping down the pressure between the pump and the plurality of brake actuators along the hydraulic pressure rail.