FAA Aircraft Dispatcher Practice Exam

What is the maximum altitude that a low VOR can service?

1. 12,000 feet AGL

2. 18,000 feet AGL

3. 14,500 feet AGL

4. 10,000 feet AGL

The correct answer is: 12,000 feet AGL

The maximum altitude that a low VOR (VHF Omnidirectional Range) can service is 12,000 feet AGL (Above Ground Level). This altitude is established by regulations governing VOR systems and reflects the design limitations of low VOR facilities, which are intended for lower-altitude navigation. Low VORs are typically used for air traffic control and navigation below 12,000 feet, providing reliable navigational signals for pilots operating at lower altitudes. For altitudes above this threshold, other types of navigation aids or higher class VOR facilities become more appropriate and effective, as they are designed to service higher altitudes with greater range and coverage. Understanding the operational limits of low VORs is crucial for pilots and dispatchers to ensure safe and efficient flight planning, especially in areas where altitude transitions occur.