can not reproduce JDAM in PP mode follow ATFLIR coordinate not the imbedded INS coordinates!

[Mnf]

I tried to release two JDAM on building. the map has 3 building in the same area.

I put the first 2 target's coordinate in JDAM PP mode, then I assigned the ATFLIR to the third building.

after releasing the two JDAMs: one JDAM hit the target, but the second JDAM seems to follow the ATFLIR coordinates rather that the imbedded INS coordinates!

don't know if this is correct behavior or bug. 

 

I attached two track files (JDAM.trk,JDAM1.trk) for this issue with ACMI file for reference. 

 

I also noticed that hitting OSB PP1,PP2.... twice will shift to TOO mode from PP mode, is that correct ? (JDAM2.trk)

regards

JDAM1.trkJDAM.trkTacview-20210424-222636-DCS-SAM Test.zip.acmi

 

JDAM2.trk

Edited April 24, 2021 by mnf1980

[Frederf]

I did a 2x PP with an ATFLIR designating a 3rd point and both JDAMs went for their typed-in targets. I'll check your tracks.

EDIT: I can't look at tracks I think they're from a different version.

Edited April 24, 2021 by Frederf

[Mnf]

I did a 2x PP with an ATFLIR designating a 3rd point and both JDAMs went for their typed-in targets. I'll check your tracks.
EDIT: I can't look at tracks I think they're from a different version.

Tracks from latest OP 2.7


Sent from my iPhone using Tapatalk

[Frederf]

I'm at build .5118. Ah maybe because it is Syria and I don't have it it won't show up in the track list.

[Mnf]

thanks Frederf for your help

 

Track for Syria map.

 

I did further investigations and I noticed that putting Elevation before LAT/LON is doing this issue. 

 

if I start with LAT/LON first then elevation in PP mode, JDAMs will hit the targets correctly with/without ATFLIR.

 

Putting elevation first before LAT/LON in PP mode will cause one JDAM to hit the target and second one will miss (I'm not sure if the second JDAM is free falling without INS or following ATFLIR)

[Svend_Dellepude]

JDAM autopilot is a bit sketchy atm so make sure you are well within range and not slow. They seem to enter an unrecoverable stall if dropped at low airspeed.

[Frederf]

Here is track of  2x JDAM released by entering elevation first. Can you provide a caucus track of this missing behavior?

JDAM3.trk

[BIGNEWY]

Take a look here this may help