Final answer:
An 80/260 procedure turn is a maneuver pilots use during instrument approaches to align the aircraft with the final approach course.
Step-by-step explanation:
An 80/260 procedure turn is a maneuver pilots use during instrument approaches to align the aircraft with the final approach course. In this procedure, the pilot turns 80 degrees away from the final approach course, and then turns 260 degrees in the opposite direction to intercept the final approach course. This is usually done using a standard rate turn of 3 degrees per second.
For example, if the final approach course is 090 degrees, the pilot would initially turn to a heading of 010 degrees (90+80=170, 170-360=010) and then make a 260 degree turn to the right to intercept the final approach course.
The purpose of the 80/260 procedure turn is to provide a way for the aircraft to safely descend and intercept the final approach course without overshooting or undershooting. It ensures proper alignment with the runway for landing.