GBU-39 Employment Issues
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If I am use PRE mode of the GBU-39s does the need to cursor zero still apply.
Yes! This is essential. Drop with SMS on one and HSD in other and make sure CZ has been pressed and is not highlighted. Maybe take a screenshot at your moment of pickle and post it here?
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“0” azimuth is the null value in which the SDB doesn’t attempt to fly any particular final approach azimuth in PRE. In VIS it never flies set approach azimuth regardless of setting.
PRE SDB goes after SPI similar to JDAM/WCMD. If you want to attack a steerpoint by coordinates then you want to be sure your steerpoint-to-SPI deltas are zero’d (CZ not reverse video). On the other hand if you want to direct the SDB toward your SPI which isn’t your steerpoint then you’ll have non-zero deltas. VIS goes after the HUD TDC box which I forget if that’s true SPI or just a temporary location for the purposes of SDB.
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7. As soon as the GBU-39 is indicating RDY and I receive the JIZ indication on the HUD I begin pickling the bombs. Switch steer points, pickle another bomb, doing this until all bombs are dropped. All bombs are dropped within range parameters. The jet is also lined up with the targets.
All the bombs miss, every time.
Any ideas?
Seems like you are doing everything right indeed, but 1 thing, are you sure you wait long enough for the GPS on the weapons to finish alignment? You should see “RDY” down in the MFD above OSB 13. Aside that, I will need to see a vid in order to understand what is wrong.
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are you sure you wait long enough for the GPS on the weapons to finish alignment? You should see “RDY” down in the MFD above OSB 13.
Can an INS weapon be released prior to alignment?
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Can an INS weapon be released prior to alignment?
Never tried that, but why would you do that……(other than to answer your question [emoji6])
send from my C6903
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Never tried that, but why would you do that……(other than to answer your question [emoji6])
I wouldn’t. I was asking because I don’t think it’s actually physically possible to pickle one prior to alignment which would mean it wasn’t the reason the OP’s GBU-39s were inaccurate.
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Yes! This is essential. Drop with SMS on one and HSD in other and make sure CZ has been pressed and is not highlighted. Maybe take a screenshot at your moment of pickle and post it here?
Thanks! Cursor zero was the issue. I love this weapon!!!
I don’t remember it being explicit in tutorials or manual.
Sent from my iPhone using Tapatalk
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I wouldn’t. I was asking because I don’t think it’s actually physically possible to pickle one prior to alignment which would mean it wasn’t the reason the OP’s GBU-39s were inaccurate.
Yeah, I guessed that [emoji106] [emoji106] [emoji106]
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Thanks! Cursor zero was the issue. I love this weapon!!!
If possible, I wait until I confirmed the target using the TGP before pickling, also great to double-check the CZ[emoji2]
send from my C6903
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Thanks! Cursor zero was the issue. I love this weapon!!!
I don’t remember it being explicit in tutorials or manual.
Sent from my iPhone using Tapatalk
Glad to help! CZing is important when dropping on preplanned coordinates with all weapons.