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8 votes

What is a "BEACON"?

In general, a beacon in aviation is defined by ICAO Annex 14 as follows: Aeronautical beacon. An aeronautical ground light visible at all azimuths, either continuously or intermittently, to designate ...
Bianfable's user avatar
  • 52.9k
6 votes

SID revisions numbers

Yes, that is correct. The number indicates a version of the procedure, and runs from 1 to 9 before cycling back to ...
randomhead's user avatar
  • 12.7k
4 votes

Why does ATC assign a SID and then give different instructions after takeoff?

A SID, among other things, is a tool to ease ATC coordinations for departing traffic. For airports with established SIDs, it is common for the tower to be allowed to depart aircraft on the established ...
60levelchange's user avatar

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