LGB / JTAC works!

[Sierra99]

I made a mission with JTAC and am getting 100% game crash when I go to choose my GBU-12's from my weapons panel whether I turn on master arm first or not JTAC has callsign and frequency set, is invisible, bomb choice is guided bombs and designator is set for laser. I know a few of you are having this problem have you had any success with getting around it?

 

Have you posted track file to bug forum?

[ckelly14]

I made a mission with JTAC and am getting 100% game crash when I go to choose my GBU-12's from my weapons panel whether I turn on master arm first or not JTAC has callsign and frequency set, is invisible, bomb choice is guided bombs and designator is set for laser. I know a few of you are having this problem have you had any success with getting around it?

 

It's quite random, but I do have more sucess with selecting EF1, selecting a top row button, turning on master arm, turning off top row. Not sure why...

[Maulkin]

A friend and I do it all the time.

 

Both Aircraft set lazer code or use default.

Lazing aircraft selects the target, sets SPI, broadcasts SPI

Bomb dropper Hooks SPI and sets as own SPI

SET GBUs for CCRP release, follow steering cues to release point.

At 10 seconds to fly call for lazer on...

 

Rinse repeat as necessary.

 

You do this all the time using a Mirage?

 

I would really love to see a video that breaks down how to set up the mission using an AI JTAC and then using a Mirage to deploy the bombs (since this is a post about LGB's in a Mirage forum)

[kontiuka]

You do this all the time using a Mirage?

I believe he's talking about the A-10C in this case.

[StormBat]

You do this all the time using a Mirage?

 

I would really love to see a video that breaks down how to set up the mission using an AI JTAC and then using a Mirage to deploy the bombs (since this is a post about LGB's in a Mirage forum)

 

 

+1 for me. I would love to see a video tutorial of an A-10C lasing a Target for the Mirage-2000C with both perspectives and step by step details. Anyone? Please and Thank You.

[Zeus67]

FYI, The crash seems to happen if you use the centerline pylon

If you use Pylons 4 and 7, no crash. At least that was in our tests before we solved the bug.

[StormBat]

FYI, The crash seems to happen if you use the centerline pylon

If you use Pylons 4 and 7, no crash. At least that was in our tests before we solved the bug.

 

Okay I'll try it, and report back. Thank you.

[tflash]

LGB AI JTAC lasing now also works in 2.0.1 ! Great!

[Maulkin]

Can some one give detailed steps how to set this up in a single player mission please?

 

Sent from my SM-G925W8 using Tapatalk

[tflash]

Simple JTAC mission

 

In attach a mission in its simplest form. I put an armored vehicle very close to the target.

In the advanced waypoint actions, I set a command "invisible" and a command "immortal". I also set an option "ROE=WEAPON HOLD" (otherwise the armed Humvee starts shooting)

 

I then set "Start Enroute task" - "Engage Group"

 

You indicate the target group, set designation to laser (you can also set WEAPON to guided bombs eg)

 

Set the radio channel (I put 135 Mhz AM, which is channel 2 on your main U/VHF radio)

 

Once airborne, Start comms, select the right radio (or use easy comms if you want) and press the key for the JTAC which should show up. The dialogue follows.

 

The biggest problem is to make the JTAC itself work, has nothing to do with the Mirage.

The JTAC only lases when he is very close to the target (max 1000 feet or so, best even less, that is why I pout it so close and set immortal and invisible), and has line of sight to the target. Depending on terrain this often just does'nt work. there are many places on the map where it doesn't work at all. So it takes a lot of time before you have a mission with actually a working JTAC!

 

Once the JTAC lases the target "LASER ON" you just do as if you are going to do a CCRP bomb. Mark a zone close to the target as if you would do for CCRP. The difference is the laser will precisely guide your bomb to the target. If you do this missions without labels, add a smoke marker or so nearthe target zone so that you know where it approximately.

FT Mirage Test LGB 2.miz

Edited February 8, 2016 by tflash

[Maulkin]

Thanks Tflash! This is exactly what I was hoping for. I can't wait to try this out!

[ScottyBS]

Great thread thanks,

 

One thing I will say, and it is mentioned already here or on the other thread about this, be sure to designate the target like you normally do on CCRP, but you need to designate a reasonable distance in front of the target on your inbound track. After extensive testing (and extensive failure) you need to have the small target cross in front of the target on your ingress track.

 

I assume this assists the bomb as it starts its downward trajectory it picks up the laser and steers to target, it appears that if you have the cross after the target the bomb will over shoot the target but also never see the lase because of the arc it takes keeps the seeker head away from the lase. (which if you think about it makes sense - and dare I say very well modeled?)

 

Scott

 

Nulla dies sine linea

[tkid]

[ame]

[/ame]

 

 

I agree with ScottyBS, in my video I locked the area in front of my target, probably half a runway in size it seems. It really helps the bomb get its nose down faster to better track the laser.And make sure the laser is on before you drop the GBU.

[Maulkin]

Again this is buddy lasing. I am desperately trying to get the JTAC to work. I have slightly modified the mission tflash has linked above (to save on time) and I am still unable to get it to work. See attached track file.

 

http://forums.eagle.ru/attachment.php?attachmentid=135257&d=1456094066

 

As far as I can see the JTAC has turned on the laser and everything looks good, long before I even turn on the Master Arm switch. In fact the damn thing almost hits a tank just by the ballistics.

Edited February 22, 2016 by Maulkin

[ZHeN]

so let it be the main LGB/GBU/JTAC thread

 

Having issues with GBU-12 bombing after update. I set a mission to destroy 4 tanks with help of JTAC and (before update) I was able to destroy at least 3 of em, and sometimes 4. But now after I blow up first one, JTAC shifts to another target but GBU-12 doesn't catch the laser spot anymore ... tried many different ways ... nothing helps

 

 

and I recently found this VID:

the guy is using some different "technique without placing the piper of RDI for CCRP"

 

I also noticed he was getting a mark of target on his HUD after "LASER ON" command to JTAC at 2:55! how's that even possible ? I'm not getting one! I have to find the target by myself and put the diamond of CCRP near it in order to know when to drop the GBU

[Dingo_Bob]

he was getting a mark of target on his HUD after "LASER ON" command to JTAC at 2:55! how's that even possible ?

 

that's not a target mark it's a waypoint marker, YoYo switches to it to get a bearing to target area to judge his release distance so the GBU picks up the laser from high altitude without the pipper

Edited March 16, 2016 by Dingo_Bob

[ZHeN]

that's not a target mark it's a waypoint marker, YoYo switches to it to get a bearing to target area to judge his release distance so the GBU picks up the laser from high altitude without the pipper

thanks

Having issues with GBU-12 bombing after update. I set a mission to destroy 4 tanks with help of JTAC and (before update) I was able to destroy at least 3 of em, and sometimes 4. But now after I blow up first one, JTAC shifts to another target but GBU-12 doesn't catch the laser spot anymore ... tried many different ways ... nothing helps

problem solved - had to move the JTAC unit closer to targets ( :( :mad: ) and drop bombs from lower ( :( ) altitude (8-9k instead of 16-17, which I was trying before)

[Voodooflies]

I manage to hit targets from angels 44, 9 to 8 miles out of the target with AI JTAC which is quite effective against some SAM sites.

[ZHeN]

I manage to hit targets from angels 44, 9 to 8 miles out of the target with AI JTAC which is quite effective against some SAM sites.

what altitude ?

[mattebubben]

what altitude ?

 

he said Angles 44 so i assume 44,000 Ft.

[ZHeN]

he said Angles 44 so i assume 44,000 Ft.

I understood it as angle of descent 44°, 8 to 9 nm to target

[nomdeplume]

44 degrees would be pretty steep for an LGB release. Doable but certainly not necessary. Angels refers to (friendly) altitude in thousands of feet and makes more sense in context.

[Voodooflies]

I understood it as angle of descent 44°, 8 to 9 nm to target

 

Angels 44 = 44.000ft @ M0.95, on a CCRP aspect which is a stable longitudinal flight (check your vertical speed as selecting EL1 w/ Master Arm On will remove the FPM). Watch for your HSI to display 9nm from the TA and the GBU-12 should pick up the laser on its way towards the ground.

 

The AI JTAC won't give you laser designation on a Type 3 CAS as far as I know though, but even though its not realistic regarding procedures, you can paveway multiple times with 1 mile seperation between each release at such altitude. That way, at each impact, the JTAC will shift on other targets and you should be able to clear 3/4 targets on a single high altitude flyby.

[ZHeN]

Angels 44 = 44.000ft @ M0.95, on a CCRP aspect which is a stable longitudinal flight (check your vertical speed as selecting EL1 w/ Master Arm On will remove the FPM). Watch for your HSI to display 9nm from the TA and the GBU-12 should pick up the laser on its way towards the ground.

 

The AI JTAC won't give you laser designation on a Type 3 CAS as far as I know though, but even though its not realistic regarding procedures, you can paveway multiple times with 1 mile seperation between each release at such altitude. That way, at each impact, the JTAC will shift on other targets and you should be able to clear 3/4 targets on a single high altitude flyby.

 

wow :surprise:

[Voodooflies]

Let me know if that works for you aswell. Of course with a CA JTAC (playable by a human) it won't be possible since no one can shift between targets instantly as the AI do.

 

Haven't done the maths, feel free to run some tests. Maybe someone will be able to sort out the optimal speed, distance and timing to deliver a maximum amount of GBU-12 at HA. I done it only on targets separated by 20/30m.

 

Flying the M-2000C like that and aiming for high value assets such as SAM or ground radars on multiplayer for instance will help considerably the A-10C to clear any target area faster as they can't go that high, fast and being exposed without terrain masking.

Edited March 31, 2016 by Sacha