What is the primary function of servos on fixed-wing and rotorcraft UAVs?

What is the primary function of servos on fixed-wing and rotorcraft UAVs?

• A. Stabilize the power system voltage
• B. Move control surfaces such as ailerons, flaps, and rudders
• C. Collect weather data
• D. Support landing gear

Answer: (B)

The main idea is that servos act as actuators that translate electrical signals into precise mechanical motion to move the aircraft’s control surfaces. In fixed-wing UAVs, this means the servos move surfaces like the ailerons, elevators, and rudders to roll, pitch, and yaw the aircraft, enabling turns, climbs, and stable flight. On rotorcraft, servos drive the mechanisms that set rotor blade pitch or swashplate angles, which control cyclic and collective, allowing the craft to tilt the rotor plane and change lift direction for maneuvering. This actuation is what lets the autopilot or pilot change the aircraft’s attitude and flight path. The other options describe tasks handled by different systems (power regulation, sensing weather data, or landing gear mechanisms), not the primary role of servos.

The main idea is that servos act as actuators that translate electrical signals into precise mechanical motion to move the aircraft’s control surfaces. In fixed-wing UAVs, this means the servos move surfaces like the ailerons, elevators, and rudders to roll, pitch, and yaw the aircraft, enabling turns, climbs, and stable flight. On rotorcraft, servos drive the mechanisms that set rotor blade pitch or swashplate angles, which control cyclic and collective, allowing the craft to tilt the rotor plane and change lift direction for maneuvering. This actuation is what lets the autopilot or pilot change the aircraft’s attitude and flight path. The other options describe tasks handled by different systems (power regulation, sensing weather data, or landing gear mechanisms), not the primary role of servos.