SID (Standard Instrument Departure)

A Standard Instrument Departure (SID) is a predefined flight path designed for airplanes to leave an airport safely and efficiently. It provides pilots with a clear route that avoids obstacles and other aircraft, while following air traffic control instructions. SIDs include specific instructions for altitude, direction, and turns, helping to streamline departures and reduce workload. They are used in instrument meteorological conditions (like fog or rain) where pilots rely on instruments rather than visual cues. Overall, SIDs ensure safe, organized, and efficient departures from busy airports.