Aircraft digital flight-control: Airplane elevons & aircraft rudder 04/10

The Tejas aircraft powerful digital flight control computer or DFCC receives signals from a variety of sensors and pilot control stick inputs, and processes these through the appropriate channels to excite and control the airplane elevons, aircraft rudder and leading edge slat aircraft engine hydraulic actuators.

The use of composites in the LCA resulted in a 40% reduction in the total number of parts compared to using a metallic frame. Furthermore, the number of fasteners has been reduced by half in the composite structure from the 10,000 that would have been required in a metallic frame design. The composite design also helped to avoid about 2,000 holes being drilled into the airframe. Overall, the aircraft’s weight is lowered by 21%.