On 12 Mar 2013, at 17:55, Stuart Buchanan <stuar...@gmail.com> wrote:
>> Now the comments at the beginning of coremag.cxx imply that the module
>> originally implemented
>> wmm2000 and was updated by Wim Van Hoydonck
>> (wim.van.hoydo...@gmail.com) to wmm2005.
>> The current version is now wmm2010, and I wonder if simgear has been
>> updated to reflect this?
>> Could this account for my heading discrepancy at EGPF?
>
> Probably not. It's more likely that the magnetic variation has simply changed
> since the runway number was set, as it varies over time.
However, it probably wouldn't do any harm to update our model - the model is
supposed to model the physical earth, and navigation data / charts *do* get
out of sync with that - so as far as I can see, updating to a more accurate
model shouldn't break anything.
If you want to cook up a merge request, I'll apply it. We have time to back it
out if the universe explodes :)
James
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