Fly-by-Wire (FBW) systems replace conventional mechanical linkages with electronic signal transmission, encompassing flight control computers (FCCs), actuator control electronics (ACEs), remote electronic units (REUs), linear and rotary variable differential transformers (LVDTs/RVDTs), and electrohydrostatic or electromechanical actuators (EHAs/EMAs) operating across redundant, dissimilar digital data buses such as ARINC 629 or MIL-STD-1553.
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