David Megginson writes:
>
> There are standards for registering navaids with the FAA -- I saw them
> recently online, but I don't remember where.
I believe NGS has responsibility for airport mapping standards
several links from
http://www.ngs.noaa.gov/AERO/aero.html
Norman
By the way, is all the data consistent ? Everyone uses WGS-84, right ?
As far as I know, when an ILS is installed, they have an aircraft fly the
approach with the needles centered, and at the same time, they use optical
means to measure the path of the aircraft from the theoretical impact
point, t
