How wide are VHF airways with a VOR on one end and NDB on the other?

VHF airways that extend from a VOR (VHF Omnidirectional Range) at one end to an NDB (Non-Directional Beacon) at the other are established in accordance with standard dimensions in the aviation regulations. The width of these airways is typically defined as 4.34 nautical miles.

This measurement derives from the operational parameters set forth for air traffic control and navigation aids. It provides adequate lateral separation for aircraft operating within the airway, ensuring safety and efficiency in the airspace. Specifically, this width allows for the requisite buffering against navigational errors and variations while still accommodating multiple aircraft within the same routing.

Understanding this standard is crucial for pilots and air traffic controllers as it facilitates safe navigation along these routes. The other options present different widths that do not conform to the established regulations and would therefore not be applicable in this context. Proper knowledge of airway dimensions is vital for efficient flight planning and management in controlled airspace.