Which component does the Attitude and Heading Reference System (AHRS) provide information for?

The Attitude and Heading Reference System (AHRS) primarily provides information about the aircraft's orientation in space, including heading, pitch, and roll. Among the options provided, the correct answer pertains to the magnetometer. The AHRS integrates inertial sensors and magnetometer data to calculate the aircraft's precise attitude and heading information, which is crucial for navigation and stability.

The magnetometer is an essential component of the AHRS because it helps to correct the aircraft's heading based on the Earth's magnetic field, enabling the system to maintain accurate orientation. While the AHRS itself tracks the aircraft's attitude, it relies on the magnetometer for reliable heading reference, especially when transitioning from a default or GPS-based heading to a magnetic one.

Other options like airspeed, turn rate, and static pressure are not directly measured or indicated by the AHRS. Instead, airspeed is typically derived from pitot-static systems, turn rate is often indicated by separate instruments like a turn coordinator, and static pressure is part of the pitot-static system as well, used primarily for altitude and airspeed readings. Thus, the magnetometer's role within the AHRS framework solidifies its significance in delivering essential navigational data.