DwarfLord wrote:Is that wrong?
It's not a clear
The FAA identifier is derived from the ICAO code by dropping the initial letter (region code) if the airport has an ICAO code. An ICAO code is unique internationally.
BOS is the identifier assigned by the FAA to the primary navigational aid associated with the KBOS airport.
Before GPS, flying to BOS (the radio beacon) was the way to fly to the airport.
Now, if I put into the GPS a destination of BOS, I fly to the Boston VOR (radio beacon).
If I want to fly directly to the airport, I put in the airport identifier KBOS.
The three letter code is normally a VOR. The ICAO code is the airfield.
The FAA airport identifier actually means the primary radio beacon, not the airfield itself or the runways.
DwarfLord wrote:This is a wiki for the US only. If every airport in the US has an FAA identifier, why bother with IATA or ICAO?
In one case, the FAA identifier won't be the IATA code. The IATA is the one most familiar to the public.