VOR

VORs defined the airway system for decades and still back up satellite navigation. Their white "haystack" or discus antennas, sometimes on an elevated platform, are a recognisable feature near many airfields.

Nearby in Aviation

• V2 — The takeoff safety speed — the minimum speed to be held on the initial climb after an engine failure.
• visual approach — An approach flown by reference to the runway and terrain rather than by following an instrument procedure.
• VR — The speed at which the pilot begins to raise the nose for takeoff.
• wake turbulence — The pair of counter-rotating vortices trailing from an aircraft's wingtips, strong enough to upset a following aircraft.