The fly-by-wire control system is: Control computers (16, 18, 20) suitable for determining the positions of the sticks; And three stages each including one monitoring computer (22, 24, 26) suitable for verifying the integrity of the determined stick positions; A control computer (40, 42, 44) suitable for calculating the position of the flight control surface with encoded stick positions; And a position calculation unit (6) for a flight control surface having three stages each including a monitoring computer (46, 48, 50) suitable for verifying the integrity of the positions of the calculated flight control surface; - one unidirectional link (88) connecting the control computer (16) for the first stage of steered control to the control computer (40) for the first stage of the position control section for the steered plane; - one unidirectional link (132) connecting the control computer (18) for the second stage of steered control to the control computer (42) for the second stage of the position control section for the flight steered plane; And And a single unidirectional link 142 for connecting the control computer 20 for the third stage of the steered control to the control computer 44 for the third stage of the position calculating section for the steered plane.
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