I'd like to propose the following changes to our current airport data
formats:
1. In $FG_ROOT/Airports/basic.dat.gz (the airport-level data file),
add two fields containing the ISO 3166 country code and a
country-specific region code. Either can be represented by 'U' if
unknown. For example, here is the current entry for KSFO:
A KSFO 37.618763 -122.374926 13 CYN San Francisco Intl
Here is a revised entry with the new fields:
A KSFO 37.618763 -122.374926 13 US CA CYN San Francisco Intl
This change will allow us to create airport dialogues sorted by
country and (optionally) state/province/region. Initially, we can
just set every one to 'U', or possibly apply some simple heuristics
(every four-letter airport identifier starting with 'K' is in the
U.S., every four-letter airport identifier starting with 'CY' is in
Canada, etc.)
2. In $FG_ROOT/Airports/runways.dat.gz (the runway-level data file),
add two new record types, 'W' for windsock and 'C' for control
tower. The W record would look like this (where 'S' stands for
'sock' rather than the other thingy, and 'L' stands for 'lighted):
R KABC 29.650236 -96.579416 176.00 SL
The 'C' record would give the latitude, longitude, and view
elevation of the control tower:
C KABC 29.651347 -96.580527 315.00
Comments?
All the best,
David
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