Identify the three control inputs that connect the primary servos to the main rotor swashplate.

Identify the three control inputs that connect the primary servos to the main rotor swashplate.

• A. Forward, Aft, and Lateral
• B. Up, Down, and Sideways
• C. Pitch, Roll, and Yaw
• D. Left, Right, and Center

Answer: (A)

The three inputs connected to the main rotor swashplate come from the three servo actuators arranged around the mast, and they control the swashplate in three directions: forward, aft, and lateral. This triad of inputs lets the swashplate tilt in the pitch and roll axes (fore–aft and side-to-side) while the collective movement (up and down) changes the overall blade pitch. In practice, the fore and aft components drive tilt along the longitudinal axis, the lateral component drives tilt along the lateral axis, and the assembly of all three inputs together sets the blade pitch pattern that enables cyclic and collective control. Yaw is controlled by the tail rotor, not the swashplate, and the vertical or collective motion is encompassed by these three drive inputs in their combined effect.

The three inputs connected to the main rotor swashplate come from the three servo actuators arranged around the mast, and they control the swashplate in three directions: forward, aft, and lateral. This triad of inputs lets the swashplate tilt in the pitch and roll axes (fore–aft and side-to-side) while the collective movement (up and down) changes the overall blade pitch. In practice, the fore and aft components drive tilt along the longitudinal axis, the lateral component drives tilt along the lateral axis, and the assembly of all three inputs together sets the blade pitch pattern that enables cyclic and collective control. Yaw is controlled by the tail rotor, not the swashplate, and the vertical or collective motion is encompassed by these three drive inputs in their combined effect.