Abstract: The flight control system comprises: at least one actuator (13) for a mobile flight surface of the said aircraft; a flight control module (12) in communication with the said actuator (13), the said module comprising a first and a second computer (14-1, 14-2, 14-3, 15-1, 15-2, 15-3), each computer being adapted for calculating a control command established according to at least one predetermined law for control of the said flight surface; the said first computer (14-1, 14-2, 14-3, 15-1, 15-2, 15-3), known as validating computer, comprising logic means adapted for comparing its control command with that of the said second computer (14-1, 14-2, 14-3, 15-1, 15-2, 15-3), known as master computer, and for transmitting the result of the said comparison to the said actuator (13), the said actuator (13) comprising logic means (18, 19) adapted for deciding, on the basis of this result, to execute or not to execute the command of the master computer. The aircraft comprises such a system.

Abstract: The invention relates to a method for the transmission of data relating to the actuation of a member used to operate a vehicle, in which code words are transmitted along the length of a given channel, each of said code words resulting from the channel coding of a block of information symbols that is representative of the aforementioned data. According to the invention, at least two such successive blocks of information symbols are coded using two different codes. The invention also relates to a data transmission system that is used to implement said method.