JDAM no release
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Here’s a video from Training #15 IAM, flying as wingman.
Why don’t the bombs get released? -
Most likely because you are not aligned with the target vector. You are flying on heading 285, while from the start of the video, looking at the HSD, you should be heading more towards 300 - 310 to fly towards the target. This offset might still work for lighter JDAMs and glide weapons, but the GBU31 is a 2000lbs bomb, and it probably does not have the necessary capabilities to correct such a big offset, so it simply won’t come off.
I assume you did that because you wanted to stay outside the SA3 WEZ? Looking at the screenshot in the Training manual, the SA3 WEZ should touch, but not overlap the flight planned route. Comparing to your HSD, your SA3 WEZ seems to be significantly bigger. Did you change the ranges by any chance, in WDP or manually? Maybe you’re using RADAR range instead of missile range?
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Concur with Eagle
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+1.
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+1
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Let’s talk about the positives! You’re well above min Mach (.80) in a tactical environment with good fuel flow - so nice job with that. Regardless of loadout many are cruising around below Mach .80 which is not good.
Given your excellent energy, prosecuting a Low Blow you should be able to easily kill it head-on then pump or split-S (pending altitude and ground fire) and you’re golden
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Let’s talk about the positives! You’re well above min Mach (.80) in a tactical environment with good fuel flow - so nice job with that. Regardless of loadout many are cruising around below Mach .80 which is not good.
Given your excellent energy, prosecuting a Low Blow you should be able to easily kill it head-on then pump or split-S (pending altitude and ground fire) and you’re golden
also, albeit you didn’t have this issue, if you’re using JDAM vis-a-vis precision steerpoint, ensure your Cursor Zero OSB is not illuminated due to FCR delta/cursor slews in your FCR…you will always miss. Hence your CZ OSB to clear them
Can’t wait to see your next vid in which I know you’ll nail it
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I think everyone’s message was that I should not have a target offset greater than 60°. So this time I made sure I attacked the target offset around 30°-40°.
. Looks like I need more help.
Still can’t release the bombs. Here’s the video link: -
2,000lb bomb with 400+ knots of forward momentum… how much can it realistically turn before it hits the ground? (I don’t know the answer … but my intuition would be less than 30° … maybe ~20° from 20k ft altitude?)
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He was perfect speed once in the DLZ at almost Mach .80 and that would still be a bit slow. I’m now questioning this: JDAM is a smart wep (GPS guided) but can be dropped CCIP if things go tango uniform on you. So back to this which you did not answer: did you set up a precision steerpoint in the 2D map and did you reference that steerpoint as the target steerpoint once you began prosecuting the target, or are you trying to drop your JDAM in the same fashion as you would CCRP with an Iron Bomb (no GPS)?
(Qualifier: I have not tried to drop a JDAM via CCRP without GPS coords as that defeats the entire purpose so not sure till I try it)
PS. once over the FLOT should always be no lower that Mach .80
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additional follow up: reviewed both tapes with my group and you are still outside CCRP drop parameters AND yes you can drop a JDAM in CCRP as you would with a dumb bomb, but not outside CCRP drop parameters.
Don’t try this against a 10
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@jc1:
I think everyone’s message was that I should not have a target offset greater than 60°. So this time I made sure I attacked the target offset around 30°-40°.
. Looks like I need more help.
Still can’t release the bombs. Here’s the video link:I agree with what Stalker says: because of your offset, you’re still outside the CCRP release parameters.
If you do absolutely want or need to come at an offset, try this:
- Use CCRP until you are within LAR
- Once within LAR, switch delivery mode from PRE to MAN on the SMS page (OSB 2)
- Pickle
- Check weapon view (Shift 7, IIRC) to see how the bomb flies and where it hits
You could use ACMI for review as well, if you want, but that’s more useful against units that are also showing in the recording.
In MAN, the bomb won’t be restricted to the tight CCRP parameters and will come off pretty much always, even when computer logic says that you’re outside release parameters, so it’s kind of an override mode.
In some cases, the bomb will still hit the target, in some, it won’t, so as pilot, whenever you use MAN, you should be aware of this and verify that you are within the proper parameters for the bomb to reach target.This works with JDAMs and to some extent with LGBs, but not at all with dumb bombs.
(Qualifier: I have not tried to drop a JDAM via CCRP without GPS coords as that defeats the entire purpose so not sure till I try it)
AFAIK, when you pickle, the GPS coordinates of your current SPI will always be sent to the JDAM, preplanned or not. That’s (one of the reasons) why it requires you to hold pickle, instead of an instant release like dumb bombs.
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AFAIK, when you pickle, the GPS coordinates of your current SPI will always be sent to the JDAM, preplanned or not. That’s (one of the reasons) why it requires you to hold pickle, instead of an instant release like dumb bombs.
Yes, I stand corrected - thanks
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Why am I outside CCRP parameters?
And I did not set up precision steerpoints. Instead, I keyed in lat/long through List/Dest enroute to STP 4. -
@jc1:
Why am I outside CCRP parameters?
And I did not set up precision steerpoints. Instead, I keyed in lat/long through List/Dest enroute to STP 4.Do this: pretend your bomb is a Mark 84 (no guidance kit/fins) now go kill the target; how are you going to fly to the target? What are you looking for in your hud to ensure you hit it or get close to damage it due to wind drift and it being a dumb bomb? I’m not going to tell you at this moment;)
Report back results.
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*also, iirc there is a set amount of time you can be holding the pickle button, for example, you can’t hold it down, fly into the area, wait for the CCRP indication for release, and expect release. It’s a very short window, and if you miss it, you want to release and press (and hold) again for release of one or multiple weapons. Not sure if this little factor is tripping you up, but it is a factor afaik and should be combined with all the rest of this info everyone is sharing (if not already and I just missed it)
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*also, iirc there is a set amount of time you can be holding the pickle button, for example, you can’t hold it down, fly into the area, wait for the CCRP indication for release, and expect release. It’s a very short window, and if you miss it, you want to release and press (and hold) again for release of one or multiple weapons. Not sure if this little factor is tripping you up, but it is a factor afaik and should be combined with all the rest of this info everyone is sharing (if not already and I just missed it)
+1
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He’s attempting to release an IAM. A long pickle is required once the carat is within the bracket. I feel he is still waaaay outside parameters for CCRP release from posts in this thread. I’d raise my hand to answer Stalker, but I’ve been to this class before:) and that isn’t fair…
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ANSWER:
You want Training Manual pg94 which also has HUD CCRP symbology illustration…
“Second pass: CCRP
Approaching IP1 turn back towards the range and concentrate on
using the FCR to acquire the target. Select the target steerpoint
(STPT 6) and zoom the FCR into DBS2 mode with OSB 3.
The structures should be clearly recognisable.
Designate a target with TMS up.
Ensure the right MFD shows the SMS page and select CCRP, or
press the MSL STEP button on your HOTAS until you see CCRP.
CCRP provides azimuth steering and distance information to the
target. Place the FPM on the azimuth steering line to fly directly
towards the target. As you approach the target the HUD symbology
will change. CCRP has two solution cues. The first one is the loft
solution cue; the second one is the level solution cue.”The JDAM allows some wiggle room due to its guidance kit with fins; you exceeded that wiggle room. With no guidance kit the GPB will need you to be super precise with your FPM glued to the bombfall line; and then you still might miss depending on altitude, wind etc. The JDAM can make up not being precise but has its limits
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That “wiggle room” is called LAR2 and it’s huuuuuge. I have this problem when doing the “ink-deck” double JDAM drop. The first one comes off fine and the second is a short distance away. I’m inside LAR2 for both. I pickle, inc, pickle. The first JDAM comes off, the second one doesn’t. Anyone else get that? I can drop on either of them individually but a rapid 1-2 often hangs on the second.