What is the full form of the acronym "VOR" in aviation?

The acronym "VOR" in aviation stands for "VHF Omnidirectional Range." This system is a type of radio navigation that allows pilots to determine their position and stay on course by receiving information from ground-based radio beacons. VOR stations transmit signals in all directions, which makes it possible for aircraft to navigate in a circular pattern around the station while identifying their radial position relative to the beacon.

The VHF part indicates that these signals are broadcast on very high frequency (138 to 144 MHz), which provides clear reception with minimal interference, making it widely effective for aircraft navigation. The omnidirectional aspect means that the signals are available in all horizontal directions, allowing pilots to use the information to fly towards or away from the station from various angles.

Other options do not accurately describe the VOR system. For example, the "Vertical Omnidirectional Range" is not a term used in aviation, similarly, "Very High Operational Range" and "Variable Frequency Operational Range" do not correspond to any established aviation navigational systems. Understanding the correct term, VHF Omnidirectional Range, is fundamental for pilots as it is crucial for effective navigation.