Standard Instrument Departure: Difference between revisions

SIDs start at the DER (Dpearture End of Runway) and leads along waypoints ([[VOR]], [http://en.wikipedia.org/wiki/Non-directional_beacon NDB], [[DME]]) on defined flight levels. The end of a SID is reached when the aircrafts is leaving the surveyed airspace of the departed airport's ATC. The SID system exists to ensure secure passing of obstacles along the flight path. Defining a SID relies mainly on noise-avoiding and security aspects and can reflect noise-avoiding at different times of day above cities or secure passing along important installations (military, private, public, governmental, etc.).