Thanks for answers, I will send data about Russian VOR's to Robin, because
I have found, that variations are outdated.
2013/8/5 Torsten Dreyer <tors...@t3r.de>
> Hi Michail,
>
> the navradio code uses the magnetic variation as stored in nav.dat for the
> VOR.
> The environmental magnetic variation is not used for the VOR.
>
> The installed offset between magnetic and true north of the signal emitted
> by the VOR is published in the local AIP, so yes: we have to adjust nav.dat
> from time to time.
>
> HTH, Torsten
> Am 05.08.2013 10:38, schrieb Михаил Сойтанен:
>
> Let me ask my question here. In nav.dat file VORs have slave variation. As
> I understand, slave variation of VOR depends on magnetic variation at he
> location. Does Flightgear use this slave variation, or it computes magnetic
> variation "on the fly"?
> Do we need to track magnetic variation change every year and manually edit
> nav.dat for it?
>
>
> 2013/8/5 Torsten Dreyer <tors...@t3r.de>
>
>> Hi Tomash
>>
>> the navradio code is far from being perfect and and least to attempts for
>> improvements exist.
>> Unfortunately, both have currently stalled due to several reasons.
>>
>> The first is in newnavradio which you can use by setting
>> <use-new-navradio type="bool">false</use-new-navradio> in your aircraft
>> xml as does the SenecaII.
>> Note: this is still an experimental feature and some instruments/aircraft
>> might not be compatible with that implementation.
>> I'll continue to work on this, once I find more time for fg hacking.
>>
>> The second is a very detailed radio signal propagation model that has not
>> made its way into the repositories.
>> I don't know what the state of this is.
>>
>> I hope this helps - Cheers
>>
>> Torsten
>>
>> Am 04.08.2013 19:20, schrieb Tomash Brechko:
>>
>> Hello!
>>
>> In file src/Instrumentation/navradio.cxx method
>> FGNavRadio::adjustILSRange the code that narrows ILS-LOC beam is commented
>> out since the end of 2004. Are there any reasons not to have directed
>> localizer beams? Being able to tune to localizer just from anywhere is a
>> bit unnatural.
>>
>> --
>> Tomash Brechko
>>
>>
>>
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