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  1. #11
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    Quote Originally Posted by JWS View Post
    I'll have a look but can't think of another AFCAD file since that would be the standard file and Aerosoft EGLL is very high on the list.
    There was a little utility program which scanned for duplicate AFD files (was it "ScanAFD"?). Not sure whether that works with FSX-type files though.

    You could run my MakeRunways utility (www.schiratti.com/dowson). Place it into the main FS folder and run it. When it has finished, search the (very large) "Runways.txt" file for EGLL. Make sure the last set of entries n there are for the Aerosoft version (the filename is provided).

    You can also search the R5.CSV file for EGLL to see the runway and ILS details. Thresholds as well.

    jrphcien, these files concern FlightSim Commander which I don't use.
    The BGL files they include are AFD files. They are scenery files which set or fix airport information in FS. They aren't specific to any one external program. If wrong values affect FSCommander they will affect any program which uses the same information.

    I've downloaded them myself and will compare them with the originals when I get a chance.

    When I tried to position the a/c on Rwy 09R using the position feature in the PM FMC, I endend up way in front of the thresh hold, on the left side of the runway, not heading towards the end of it
    A lot of sceneries have non-standard "Start" positions - all the normal FS ones are on the runway threshold facing the runway direction, but several scenery makers like to put them at a "Stop" point off the runway. I expect this is a good idea for on-line fliers, where suddenly making your aircraft appear on the runway is a really unpopular move.

    I've no idea where PM gets its position data for placing aircraft. That's a feature of PM I didn't even know existed, and so have never used it. But if it is supposed to be planting it on the runway facing the right direction, maybe the NavData it is using is suspect.

    and the magenta line for the BKP departure started somewhere left of the runway. Does this give a clue?
    Hmm. That does seem odd. Have SimWings moved the runways away from reality? I would assume the NAVDATa gave the true real world position, so the Aerosoft scenery should be the same.

    I'll be looking at Aerosoft's EGLL more over the weekend. Maybe I'll get back if I notice anything odd, or otherwise.

    Regards

    Pete

  2. #12
    Forum Moderator JWS's Avatar
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    Quote Originally Posted by Peter Dowson View Post
    There was a little utility program which scanned for duplicate AFD files (was it "ScanAFD"?). Not sure whether that works with FSX-type files though.

    I've no idea where PM gets its position data for placing aircraft. That's a feature of PM I didn't even know existed, and so have never used it. But if it is supposed to be planting it on the runway facing the right direction, maybe the NavData it is using is suspect.

    I'll be looking at Aerosoft's EGLL more over the weekend. Maybe I'll get back if I notice anything odd, or otherwise.

    Regards

    Pete
    Pete,

    to prevent confusion, I use FS9/2004 (not FSX).

    I presume that PM's set position feature does the same what FS does with Go to Airport/runway xxx. So I therefore assume that it uses the FS (standard or modified AFCAD) data and not NaviGraph.

    I'll check this weekend once more.

    Regards,

    JWS

  3. #13
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    Quote Originally Posted by Peter Dowson View Post
    I'll be looking at Aerosoft's EGLL more over the weekend. Maybe I'll get back if I notice anything odd, or otherwise.
    I've just checked the data on the Aerosoft Heathrow EGLL. There are some small differences, but nothing that great:

    The default FSX runways (ignoring 23) are:

    09R Lat 51.464767 Long -0.486783 Alt 83 Hdg 93 Len 11978 Wid 164
    27L Lat 51.464943 Long -0.434046 Alt 83 Hdg 273 Len 11978 Wid 164
    09L Lat 51.477486 Long -0.489342 Alt 83 Hdg 93 Len 12786 Wid 164
    27R Lat 51.477676 Long -0.433031 Alt 83 Hdg 273 Len 12786 Wid 164

    Those lat/lons are the computed thresholds, using the runway centre point and its orientation and length. My program uses those rather than the "start" points provided by the BGLs because, as I said, they may be off the runway at a hold.

    The MEGA 2008 runways, in FSX, are:

    09R Lat 51.464661 Long -0.488373 Alt 83 Hdg 93 Len 12306 Wid 660
    27L Lat 51.464958 Long -0.434193 Alt 83 Hdg 273 Len 12306 Wid 660
    09L Lat 51.477402 Long -0.489779 Alt 83 Hdg 93 Len 12776 Wid 250
    27R Lat 51.477707 Long -0.433514 Alt 83 Hdg 273 Len 12776 Wid 250

    Now the 9R/27L width seems odd, and you'll note that they've lengthened it too, by over 300 feet (whilst shortening the other just a tad). But the thresholds work out quite close. Let's take just 09R to see:

    Latitude difference = 0.0001 degrees. About 37 feet? Still well within the original runway width. Longitude difference = 0.0016 degrees. That's a lot more -- about 250 feet at this latitude?

    But both of those changes would be accounted for by the difference in the runway length. You'll notice that the differences for 9L/27R are far less, mainly because the length hasn't been changed much.

    I also checked those replacement (FSCommander) files, and they don't change any of this.

    The ILS settings are very similar in both, here:

    Default FSX:
    Primary ILS: IBB 109.50 Hdg: 89.7 , Flags: GS DME BC "CAT III ILS/DME 09R"
    Secondary ILS: ILL 109.50 Hdg: 269.7 , Flags: GS DME BC "CAT III ILS/DME 27L"
    Primary ILS: IAA 110.30 Hdg: 89.7 , Flags: GS DME BC "CAT III ILS/DME 09L"
    Secondary ILS: IRR 110.30 Hdg: 269.7 , Flags: GS DME BC "CAT III ILS/DME 27R"

    Heathrow 2008:
    Primary ILS: IBB 109.50 Hdg: 89.5 , Flags: GS DME "CAT III ILS/DME 09R"
    Secondary ILS: ILL 109.50 Hdg: 269.5 , Flags: GS DME "CAT III ILS/DME 27L"
    Primary ILS: IAA 110.30 Hdg: 89.7 , Flags: GS DME "CAT III ILS/DME 09L"
    Secondary ILS: IRR 110.30 Hdg: 269.5 , Flags: GS DME "CAT III ILS/DME 27R"

    So Approach mode should work pretty much identically for both.

    Regards

    Pete

  4. #14
    Forum Moderator JWS's Avatar
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    Pete,

    your weekend seems to be damned fast

    Now what's the ILS course/Rwy heading: 90/270 of 93/273 (or perhaps 94/274?)

    JWS

  5. #15
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    Quote Originally Posted by JWS View Post
    Now what's the ILS course/Rwy heading: 90/270 of 93/273 (or perhaps 94/274?)
    See what I posted: it was all there already. 93/273 Magnetic runway headings (to nearest degree) for both default and Mega2008.

    More accurate are the ILS headings which are in degrees True: 89.7/269.7 for the default, 89.5/269.5 for Mega2008. Those are the same as the runway heading in degrees True. There's no offset. Your autolands should be perfect!

    Pete

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