Flight control system and aircraft comprising it

A flight control system for an aircraft, the system comprising:

• at least one actuator for a mobile flight surface of the aircraft;
• and
• a flight control module in communication with the actuator, the module comprising a first computer and a second computer, each computer being adapted for calculating a control command established according to at least one predetermined law for control of the flight surface, the first computer, known as validating computer, comprises a first logic section that compares the control command calculated by the first computer with the control command calculated by the second computer, known as master computer, and transmits the result of the comparison to the actuator, and
• the actuator comprises a second logic section that decides, on the basis of the result, to execute or not to execute the control command calculated by the master computer, and
• wherein the actuator is in communication with a group of master computers, each master computer being associated with at least one validating computer of a group of validating computers, and the second logic section of the actuator being further adapted for selecting a command to be executed from among commands originating from the master computers, and
• wherein the second logic section of the actuator has a priority architecture.