The swashplate assembly, shown in figure 10-9, sends movement of the flight controls to the rotary-wing blades. A ball ring and socket allows the swashplate to tilt off of its horizontal plane and move on its vertical axis.

The assembly consists of a rotating swashplate, connected to the rotary-wing hub by the rotating scissors and adjustable pitch control rods. The assembly also has a stationary swashplate, which connects to the main gearbox by the stationary scissors and the primary servo cylinders. Each swashplate assembly is bolted together in a way that permits the rotating swashplate to rotate within the

Figure 10-9.Swashplatecross-sectional and installed view.

stationary swashplate. When the primary servo cylinders are actuated by the flight controls, the stationary swashplate moves, with this movement being transmitted to the rotating swashplate. The rotating swashplate sends movement, through the adjustable pitch control rods, to the sleeve spindle of the rotary blades. This action changes the angle of incidence of the blades