4.0 FLIGHT CONTROLS
4.1 OVERVIEW
The flight control system is composed of the primary and secondary flight control systems and their
associated system components. Hydraulic actuators control the respective flight control surfaces.
These are generally referred to as Power Control Units (PCUs). Elevators, rudder and roll spoilers as
well as all the secondary flight control systems, including the horizontal stabilizer, flaps and slats,
ground spoilers and speed brakes, are controlled using Fly-by-Wire technology. The ailerons are
controlled via conventional control cables that run from each control wheel back to a pair of
hydro-mechanical actuators which in turn drive the ailerons.
For a more detailed description of flight controls go
(http://www.smartcockpit.com/aircraft-ressources/Embraer_190-Flight_Controls.html)
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