A pedal system particularly tailored to a Fly-By-Wire (FBW) flight control
system includes a double gradient linkage assembly. The double gradient
linkage assembly includes a damper system and a spring system that
improves yaw axis (azimuth) control of the aircraft. Control is only
required when a change in the yaw axis state is demanded. Since only
minimal displacement inputs to such a FBW flight control system is
required, the travel of the pedals are exceeding compact, such that pilot
workload is significantly reduced through the reduction in the frequency
and magnitude of aircraft control inputs.