What does a servo do in a UAS?

What does a servo do in a UAS?

• A. Rudder — located at the tail and controls yaw.
• B. Servo — a small electro-mechanical device that deflects control surfaces and converts electrical signals into rotary motion.
• C. Canard — horizontal tail near the nose.
• D. Propeller — provides thrust.

Answer: (B)

A servo is an actuator that converts electrical signals into precise rotary motion to position a control surface. In a UAS, the flight controller or receiver sends a signal to the servo, which then drives its internal motor to rotate to the commanded angle, moving the connected control surface through a linkage. Many servos include a feedback mechanism so the system knows the actual position and can adjust accurately. This is different from the rudder, which is the surface that moves, the canard, which is a horizontal surface, and the propeller, which provides thrust. The servo’s job is to position the surfaces that steer or control the aircraft.

A servo is an actuator that converts electrical signals into precise rotary motion to position a control surface. In a UAS, the flight controller or receiver sends a signal to the servo, which then drives its internal motor to rotate to the commanded angle, moving the connected control surface through a linkage. Many servos include a feedback mechanism so the system knows the actual position and can adjust accurately. This is different from the rudder, which is the surface that moves, the canard, which is a horizontal surface, and the propeller, which provides thrust. The servo’s job is to position the surfaces that steer or control the aircraft.