Lost waypoint positions

[oldhippie 0]

 Greetings all,
Sometimes, I want to build a flight plan that is basically a sightseeing trip so I use LNM to build it with waypoints and then export is as .fms for xplane.
I've been doing this for years on the 530 with no issues. I could even modify it in xplane and reload in LNM with no issues.
Recently, I've been trying to learn the G1000 better but I'm having an issue with the flight plans. If I build a plan in LNM and export to Xplane as .fms, no issues. The problem occurs if I modify the plan, save it in the G1000 under the new name it creates and try and reload it from Xplane to LNM. The plan remains fine in Xplane but in LNM, all of the waypoints are red and each has a can't be found error. The route changes are not always there as well.
I have Navigraph and the data bases are the same.
Been looking all day for a solution but no luck yet. This may (and that's a big May) be related to the last LNM update.
Any thoughts would be greatly appreciated.  Thanks in advance.

[albar965 1,047]

Can you post such a modified FMS file? Simply paste the content into a post using the code option of the forum. I'd like to have a look at it.

Alex

[oldhippie 0]

Thanks for the quick reply. I've figured out that the re-saved g1000 flight plans causing an issue have no altitude information in them. I'm wondering if it is because the g1000 doesn't seem to apply the "blanket" altitude you select in the LNM plan to each waypoint, so if you don't individually apply it in the g1000, it may not be saved.

I'm going to try some more experimenting today and will report back. I'm really curious if you can duplicate it in the 530. Would be good info to know if it isn't known all ready.

Thanks again !  

[albar965 1,047]

Missing altitude should not be a problem when reading FMS. I'll have a look at this.

ALex

[oldhippie 0]

Hi ALex. It seems the resaved flight plans change what I call the type designations from 28 to 11 and add an "A" in front of the DEP and DES airport.

Origional "Export as FMS" File

I
1100 Version
CYCLE 2107
DEP KBHB
DES KVSF
NUMENR 155
1 KBHB ADEP 83.000000 44.449768 -68.361565
28 WP1 DRCT 3811.652588 44.408890 -68.208221
28 WP2 DRCT 4121.705078 44.406132 -68.195175
28 WP3 DRCT 4560.065918 44.392395 -68.195694
28 WP4 DRCT 5000.000000 44.389267 -68.216011
28 WP5 DRCT 5000.000000 44.406685 -68.236610
28 WP6 DRCT 5000.000000 44.411957 -68.249489
28 WP7 DRCT 5000.000000 44.429001 -68.285706
28 WP8 DRCT 5000.000000 44.435619 -68.309570

530 after removing a few waypoints and saved as KBHBKVSF. Gived errors loading in LNM

I
1100 Version
CYCLE 2107
ADEP KBHB
ADES KVSF
NUMENR 151
1 KBHB ADEP 83.000000 44.449768 -68.361565
11 WP1 DRCT 0.000000 44.408890 -68.208221
11 WP2 DRCT 0.000000 44.406132 -68.195175
11 WP3 DRCT 0.000000 44.392395 -68.195694
11 WP4 DRCT 0.000000 44.389267 -68.216011
11 WP5 DRCT 0.000000 44.406685 -68.236610
11 WP6 DRCT 0.000000 44.411957 -68.249489
11 WP7 DRCT 0.000000 44.429001 -68.285706
11 WP8 DRCT 0.000000 44.435619 -68.309570
11 WP13 DRCT 0.000000 44.483280 -68.366684
11 WP14 DRCT 0.000000 44.524418 -68.400673
11 WP15 DRCT 0.000000 44.539589 -68.424362

g1000 file after adding altitudes back.

I
1100 Version
CYCLE 2107
ADEP KBHB
ADES KVSF
NUMENR 151
1 KBHB ADEP 83.000000 44.449768 -68.361565
11 WP1 DRCT 3811.000000 44.408890 -68.208221
11 WP2 DRCT 4121.000000 44.406132 -68.195175
11 WP3 DRCT 4560.000000 44.392395 -68.195694
11 WP4 DRCT 5000.000000 44.389267 -68.216011
11 WP5 DRCT 5000.000000 44.406685 -68.236610
11 WP6 DRCT 5000.000000 44.411957 -68.249489
11 WP7 DRCT 5000.000000 44.429001 -68.285706
11 WP8 DRCT 5000.000000 44.435619 -68.309570
11 WP13 DRCT 5000.000000 44.483280 -68.366684
11 WP14 DRCT 5000.000000 44.524418 -68.400673
11 WP15 DRCT 5000.000000 44.539589 -68.424362

Thanks again!!

 

[albar965 1,047]

NUMENR 155:

155 waypoints? Looks like something is missing including the destination.

Can you upload the files to https://wetransfer.com/ or another service?

Alex

[oldhippie 0]

Those weren't the complete plans, just the first few points. I have figured out that the lost waypoint issue is that Xplane changes the type designation to 11 instead of 28.

The "A" before the DEP and DES lines don't seem to matter and you must not have any blank lines above the first line with the "I" or LNM and probably xplane says it's not a valid file. Would be nice to be able to transfer back and forth.

Will figure out a way to upload the files if I can't attach here.  Thanks again.

[albar965 1,047]

Why 11? From the FMS spec:

Quote

The first column is the type of waypoint, and corresponds to the first column in a v3 .fms file. It is 1 for airport, 2 for NDB, 3 for VOR, 11 for named fix and 28 for unnamed lat/lon waypoints.

Are the waypoints in your "user_fix.dat"?

Alex

[albar965 1,047]

No need for user_fix.dat. The G1000 always converts the waypoints to type 11 which is wrong.

Should I file a bug report?

Alex

[oldhippie 0]

Thanks Alex, I would appreciate that. Was trying to set up a GDrive public share folder to send a .zip of the files. it's a small zip. will send link when get it set up.

[oldhippie 0]

https://drive.google.com/file/d/1TarGYHL_PXV2g2W93wJHi2AaTiHd22zi/view?usp=sharing

[albar965 1,047]

No worries. No need to send the files. It is very easy reproducible.

Alex