Final answer:
The functions of the IR computers are to provide accurate navigation information using inertial sensors and maintain an inertial reference frame. They calculate the aircraft's position and velocity based on changes in acceleration and rotation.
Step-by-step explanation:
The functions of the IR (Inertial Reference) computers are to provide accurate navigation information that allows an aircraft to determine its position and track its movement. The IR computers use inertial sensors, such as accelerometers and gyroscopes, to measure changes in acceleration and rotation. These measurements are then processed by the computers to calculate the aircraft's velocity and position.
One of the key functions of the IR computers is to maintain an inertial reference frame, which is a frame of reference that remains fixed in space and does not depend on external references. This allows the aircraft to navigate accurately even without external signals.
The calculations performed by the IR computers take into account the aircraft's initial position and velocity, as well as the changes in acceleration and rotation. By continuously updating the position and velocity based on the measured changes, the IR computers provide essential information for navigation, autopilot systems, and flight data recorders.