How should you correct your course when it is outside of the arc?

When your course is outside of the arc, the correct approach is to adjust your heading to account for your position relative to the desired course. Positioning the head of the bearing pointer 10° above the 90° index for each 0.5 NM off perfectly illustrates how to correct your course adequately.

This method utilizes the established correlation between the distance off course and the necessary heading adjustment. By indicating a 10° adjustment for every half nautical mile off, you increase your chances of correcting the course efficiently and arriving back on track. This standard practice helps pilots maintain the correct course in a systematic manner and ensures a smoother navigation process.

On the other hand, the other options do not align with this standard procedure and would not provide the necessary correction to bring the aircraft back towards the intended course. It’s important for pilots to understand these adjustments in order to effectively navigate and ensure safety during flight.