What is the acceptable range of degrees for course change when checking VOR sensitivity?

The acceptable range of degrees for course change when checking VOR sensitivity is 10 to 12 degrees. This range is established to ensure that pilots are accurately assessing the responsiveness of the VOR system during their navigation checks. When the VOR is being tested, a change in the aircraft's course by this amount should result in a corresponding change in the indicated heading on the VOR receiver. This helps verify that the system is functioning properly and that the aircraft is staying on the correct navigational path. Ensuring that the sensitivity falls within this range is crucial for safe and effective instrument navigation. Pilots must be familiar with these parameters to perform accurate checks and maintain confidence in their navigation systems.