What is the range of a VOR Terminal service volume?

The range of a VOR (VHF Omnidirectional Range) Terminal service volume is indeed 25 nautical miles. This service volume is specifically designed to accommodate aircraft operating in the terminal area, which is typically within 25 nautical miles of the VOR station and below an altitude of 12,000 feet. VOR stations in this category provide reliable navigation information to aircraft during approaches and departures, ensuring safe and efficient operations in busy airspace near airports.

The 25 nautical mile range is established to ensure that pilots can receive clear signals from the VOR station, which is critical for effective navigation and maintaining situational awareness. Additionally, the Terminal service volume is important for maintaining communication with the surrounding air traffic control, helping pilots to integrate safely into the terminal traffic patterns.