Which component in an autopilot system is primarily responsible for sensing attitude information?

Which component in an autopilot system is primarily responsible for sensing attitude information?

• A. Pitot tube
• B. Gyro
• C. Altimeter
• D. Magnetometer

Answer: (B)

Attitude is the aircraft’s orientation in space (roll, pitch, yaw). To know how the aircraft is tilted and turning, you need a sensor that measures rotation. A gyro provides data on angular rates around the three axes, and the autopilot uses those rates (often integrating them, sometimes with corrections from other sensors) to determine the current attitude and to command control surfaces to maintain or change it. The other sensors do different jobs: the pitot tube measures dynamic air pressure for airspeed, the altimeter uses static pressure for altitude, and the magnetometer gives magnetic heading. So the gyro is the primary source for sensing attitude information.

Attitude is the aircraft’s orientation in space (roll, pitch, yaw). To know how the aircraft is tilted and turning, you need a sensor that measures rotation. A gyro provides data on angular rates around the three axes, and the autopilot uses those rates (often integrating them, sometimes with corrections from other sensors) to determine the current attitude and to command control surfaces to maintain or change it. The other sensors do different jobs: the pitot tube measures dynamic air pressure for airspeed, the altimeter uses static pressure for altitude, and the magnetometer gives magnetic heading. So the gyro is the primary source for sensing attitude information.