need track replay F-16 HARM question.

[JustAnAverageAce]

Hello Guys. I am learning how to release some tutorials on Youtube about how to effectively use AGM-88C HARM missiles in the F-16 and came across this video from Gaffer:

https://www.youtube.com/watch?v=ysyjmhma4rg

When he is releasing the HARM in EOM submode, the steering cue on the HUD seems to be slaved to the selected steerpoint, and not to the target designation box, that can be slewed with the Radar Cursor, as you can see in the screenshot, the target designation box is nowhere to be seen. But when I do the same, the steering cue follows my radar cursor. What am I doing wrong? Is this a bug? 

 

Edited June 2, 2023 by JustAnAverageAce

[darkman222]

I'm afraid I am not quite getting your question. Why did you not show your MFDs in the screenshot too? Hard to judge that way.

What he does in his video he is using the HAD HTS to find the SAM site and create a steerpoint. You wont get a target designation box like in AA mode. What you might call a target designation box is when he used HAD to slave the TGP to the estimated position of the SAM site. The box is where TGP is looking. It will move with your TGP.

As soon as the steerpoint is created the box can be wherever you want it to be, by slaving it around with the TGP.

He uses the HARM without the HAD just in PRE EOM. So the HARM will fly to the selected steerpoint, no matter where the TGP or the box is looking.

EOM mode is so precise you can just fire at targets that sit behind you. You just need to see that the carret is in the DLZ staple next to your altitude indicator in the HUD.

EDIT: If you want to see something as a target designator box, it is the steerpoint diamond (in your screenshot) As long as the HARM is programmed on that steerpoint it will go there and look for the SAM type you selected in the TBL before launch.

Edited June 2, 2023 by darkman222

[twistking]

related to this?

 

[darkman222]

You guys are playing too much 90ies sims with a target designator box on the ground. locking targets, as well as in the air the same way.

But yes, related. And, I am not a pilot, but I'd assume this as correct.

The Harm wants to go to the steerpoint. And the box with the bomb fall line is just CCRP symbology on top.

Here is a video for illustration. See that the created steerpoint, its 28 in my case is represented by the diamond. If the TGP box is on top, the diamond disappears. See how I can move the TGP box with the CCRP bomb fall line around? Also note when I switch the steerpoint, and then back to STP28.

Maybe you also try to do a CCRP tutorial, so this symbology will become familiar.

Video:

 

[twistking]

2 hours ago, darkman222 said:

You guys are playing too much 90ies sims with a target designator box on the ground. locking targets, as well as in the air the same way.

But yes, related. And, I am not a pilot, but I'd assume this as correct.

The Harm wants to go to the steerpoint. And the box with the bomb fall line is just CCRP symbology on top.

Here is a video for illustration. See that the created steerpoint, its 28 in my case is represented by the diamond. If the TGP box is on top, the diamond disappears. See how I can move the TGP box with the CCRP bomb fall line around? Also note when I switch the steerpoint, and then back to STP28.

Maybe you also try to do a CCRP tutorial, so this symbology will become familiar.

I have enough hours in the Viper that i'm familiar with CCRP symbology. Maybe you are right though. The thing that i got hung up on, was the fact that the HARM is not targeting SPI, while a SPI is generated but not targeted by the the active weapon. That goes against the Viper's dogma of only having one sensor point. That's the "reason" that you can't slave around your TGP while in CCIP f.e. It would often be nice to do so, but it's not possible. HARM POS mode seems exceptional in this regard. I would have expected the TGP to lock on the steerpoint a.k.a. the location of the steerpoint being SPI.

[darkman222]

I am not saying that this behavior is correct. I just assume it makes sense.

But talking about the video from Gaffer the original poster is referring to, the procedure was as follows: Use HAD to slew the TGP (box) to the approximate position of the SAM. FInd the exact location of the SAM with the TGP. Create steerpoint. Then UNLOCK the SAM on the HAD. Use the HARM own POS EOM mode without the HAD which is working purely with steerpoints, as you can see in the post-launch HARM symbology on the HARM WPN page.

HARM might be an exception. I am not too familiar with JSOW or JDAM. Maybe there is differences between them and HARM in usage which is causing confusion.

[Lord Vader]

Hi @JustAnAverageAce

I am unable to clearly see what the issue is for you here. I think @darkman222 explanation is on point, have a read and see if that clears things for you.

If not, please create a short track with your issue and we'll take a look.