Products Support > Vancouver CYVR support MSFS
LOC Courses at CYVR (MSFS) are misaligned **SOLVED**
virtuali:
The ILS in the scenery are surely correct, meaning:
They are inserted using True heading, as they should, with the correct indication of the Magvar. For example, RWY 8L is about 100° Deg True with -18° of Magvar for the area results in a reading of 82° on the instruments.
If the readout on the instrument needles is correct ( and it surely is ), the problem here is ONLY the wrong course automatically set by the instrument, which seems to indicate a bug in the sim ( or the instrument code ) of not taking into account the Magvar which IS correctly set in the scenery ( otherwise the needle would be wrong too ) when automatically set the CRS.
It's *possible* there's a bug in the sim not taking into account the Magvar, but I think we should stick to set the ILS correctly, meaning the heading is set to True, and the Magvar is set because, if we tried to be smart and "fix" the error, by setting the ILS to its Magnetic course and the Magvar to 0, the following will happen:
- Asobo might fix the bug in the meantime, resulting to a wrong readout.
- The Magvar might change with an update, and the readout would be again wrong.
So, I think having to check the CRS to be correct and not relying on the automatic selection is probably the best choice right now, better than purposely set the ILS wrong in the scenery to make the instrumentation happy.
lonewulf47:
--- Quote from: virtuali on October 19, 2020, 01:42:12 pm ---Edit: I must stand correct: FSDT's KORD is affected by the same, but as the MAGVAR is only 4°, the error is not so obvious. IMHO this looks like design flaw, but maybe there's another explanation why all other airports are showing correct LOC inbound courses.
--- End quote ---
Clearly confirming there's a bug in the sim. If we wanted to "fix" a problem we don't have in the first place, we should have set the ILS with its heading as Magnetic and always set Magvar at 0, which is clearly against the specs since:
- Heading for an ILS is considered to True
- MagVar is a separate parameter and it's not optional
romoni:
+1
virtuali:
--- Quote from: lonewulf47 on October 19, 2020, 02:03:27 pm ---Well, you might certainly also have an explanation why the LOC COURSES ARE CORRECTON ALL OTHER AIRPORTS, even when using the Asobo/MS default CYVR airport.
--- End quote ---
There might be several explanations:
- The bug might only happen in add-on airports
- The default ILS database might not include Magvar in ILS and the airplane might use just the Magvar of the *airport* and assume it's the same for all ILS ( a reasonable assumption, yet the .BGL format requires to have Magvar for individual ILS too )
- Some add-on developer decided to purposely set the Magvar to 0. I believe we had 0 at KORD, but the Magvar there is very small ( I think it's 3 deg or so ), so you might not notice a problem like at CYVR.
--- Quote --- The term "...and not relying on the automatic selection" is really a fantastic contribution to the problem. You are probably not aware of the fact that there is NO POSSIBILITY to change the inbound course manually, once you have selected the correct frequency.
--- End quote ---
Which airplane are you referring to ? If you can change the CRS on an airplane, but you cannot on another one, that's something specific for that airplane, and I'd say it's also a bug that should be fixed, since manual selection of the CRS is always possible in real life, even when the plane usually sets it automatically. Of course, the automatic selection should work in the first place and, again, this is not a scenery problem, rather the airplane code that is IGNORING an information which is PRESENT in the scenery.
I'll repeat it again, this is how CYVR ILS 8L is set in the scenery:
- True Heading 100°
- Magvar -18°
Which part of this data you find unrealistic or wrong ?
lonewulf47:
--- Quote from: virtuali on October 19, 2020, 02:31:06 pm ---
Which airplane are you referring to ? If you can change the CRS on an airplane, but you cannot on another one, that's something specific for that airplane, and I'd say it's also a bug that should be fixed, since manual selection of the CRS is always possible in real life, even when the plane usually sets it automatically. Of course, the automatic selection should work in the first place and, again, this is not a scenery problem, rather the airplane code that is IGNORING an information which is PRESENT in the scenery.
--- End quote ---
Well, the above is of course not a FSDT issue, as this is a design flaw of MSFS. They tried to coypy X-Plane in that respect, but kept the Auto-LOC course fixed without a possibility to change it. There is nothig wrong in your mentioned data, just the outcome that shows the LOC course at 100° MAG.
But still I would be interested in an explanation as to why on all other aiports (e.g. also Asobos own KJFK) the LOC Courses are depicted correctly.
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