This directory contains the ourairports_com.exe command line program to parse
the world airports database as provided by:
http://ourairports.com

Data downloaded 2017-11-01. The following files are required by this
program and must be store in a single directory whose path must be indicated
on the command line: airports.csv, navaids.csv, runways.csv.

Writes to standard output the generated scenery file with RWY and NAV records
only. For a detailed description of the command line options, use --help.

Unfortunately, ILS antennas are missing from that database, so only RWY and
NAV records are generated.

The only purpose of the airports file is to get the average elevation of its
runways, as the ACM does not support (or, it behaves badly) close runways at
different elevation (see the reference manual for more about this issue).

The make-zones.sh Bash shell script generates some sample zones and also add
some ILS antennas for major airports from data collected by hand; the
tools/create-ils.exe program has been used here to generate the basic entries
for all the ILS and the interesting ones have been selected for completion and
added to the script.
