What is the primary function of an Inertial Measurement Unit (IMU) in an aircraft?

The primary function of an Inertial Measurement Unit (IMU) in an aircraft is to measure accelerations and angular velocities. IMUs are critical components in aircraft navigation and control systems, as they provide essential data regarding the aircraft's position, orientation, and motion.

By measuring accelerations along different axes and tracking changes in angular velocity, the IMU helps to determine the aircraft's current velocity and orientation relative to the Earth. This information is vital for the flight control systems, allowing for accurate navigation, stabilization, and performance of maneuvers.

In aviation, the data from the IMU can be integrated with other sensors and systems to enhance situational awareness and automate control processes, ultimately contributing to safer and more efficient flights.