What is the service volume for terminal VOR?

The service volume for a terminal VOR extends from 1,000 to 12,000 feet and has a range of 25 nautical miles. This specification is designed to provide reliable navigation guidance for aircraft operating within the terminal airspace, which is often where airplanes are taking off and landing. The 25 nautical miles radius is suitable for this area since it accommodates the flight paths of aircraft approaching or departing from an airport.

Understanding this range and altitude is vital for flight instructors, as it informs pilots about the effective communication and navigation limits for the VOR within terminal airspace. It helps with planning routes that will ensure they are within the operational parameters of the VOR system, particularly during critical phases such as approach and departure. The other options do not accurately reflect the typical service volume for terminal VORs, as they either represent incorrect altitude ranges or ranges that exceed what is standard for terminal operations.