JADAM Help

[Hell0]

When I laser designate I don’t get the asl carrot.

if while flying over the locked target and release the bomb randomly it will hit its mark.

 

Thanks

[ASAP]

That's normal JDAM behavior/symbology. I can't tell from your question if you don't know how it works, or if you do know how it works and for some reason you're not getting what you expected. I'll try to answer both, sorry if I'm telling you what you already know. Just trying to be helpful.

I'm assuming your talking about using GBU-54s since you said you are lasing? The HUD symbology and behavior of the 54 is the same as the 38, the laser just updates the coordinate the JDAM is flying to as the weapon is in flight.

For JDAMS you'll get an azimuth steering line but you wont get a carrot that falls down that line as you approach a specific release point like with the GBU-10/12. Instead you get whats called a Launch Acceptability Region (LAR) depicted on the left side of the HUD. It looks like bar along the left side with a little bar  inside starting at the bottom, and a range carrot that moves down the left side of those bars. If you are not seeing the LAR on the left side of the HUD, it most likely means you are too low or not pointed well enough at your target for the jet to calculate a good LAR. Try flying higher toward the target, I aim to be above 10K normally, but you can certainly go lower, you'll just have a smaller LAR. the ASL should be centered in your HUD (not between the pitch latters if there's a high wind) to give you best range bomb. Also, the LAR is calculated off of your SPI, so make sure you check that in the bottom left of your HUD. If you are trying to drop on a steer point directly in front of you but you have TGP LOS SPI and your TGP is looking off to the side, the jet wont give you a LAR because it thinks you want to bomb what your TGP is looking at.

Unlike GBU-10/12s where there is one optimum release point, you can release the JDAM anytime you are "in LAR" denoted by the where the carrot is in relation to the bars on the left of the HUD. The big bar means you are in range and the bomb will have the energy to make it to the target. The smaller bar at the bottom of the LAR means that the bomb can make it to the target with the dive angle the weapon profile has set in the DSMS.

I hope that helps. If I completley missed the mark and didn't answer your question, let me know.

[Hell0]

Thanks man, got you.

 

Thanks for your big reply.

 

It was the LAR.

Edited January 28, 2022 by Hell0