JDAM in Israel theatre campaign….
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On a related note, has anyone tried making markpoints with the TGP, then dropping multiple JDAMs? I have tried it a few times (in different theaters) and even though I set 4 separate targets, all JDAMs fall onto target #4. If I set targets from the recon screen they work perfectly, and hit all 4 targets. Something seems amiss when using the TGP.
I’ve tried it and found it to work swimmingly with the spaced ripple drop method. I’ve found that about 600ft gives me a good interval when flying at 15-20kft.
The only things I can think of in your case is either your TGP isn’t in Slave mode (i.e. it’s in area or point modes), or if the FCR and TGP are on the same MFD and the TGP is selected. In which case the designated target won’t actually change when you select a new steerpoint until you cycle through the FCR again. -
FCR and TGP are on separate MFDs, so it had to be that my TGP was in Area mode. The last time I tried it I was at KOTAR, used the TGP to make markpoints on 4 of the bullseye targets. Set TGP to STBY, went around for CCRP drop with 999ft spacing, switching STPTs between releases. Turned off target and turned the TGP back on. All 4 bombs landed on the last target I marked with the TGP.
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Here are a couple of things which I have learned that could be helpful. 1. After you recon, check your DTE page and check the targets at the steer points you have designated. If this shows blank in the DTE page, you will need to recon again and select the targets and assign them. Check the DTE again and is should show the name of the target and the coordiantes for it. The fabulous thing about the GPS weapons is that they have a range, because they have internal guidance that gets its steering from the GPS sattelites in the area. They are extreemly accurate, even at zero visabiliy. You can release them in the CCRP mode but the best way to do it is to use the CCRP mode on the way to the target, mostly to get the current range to target. When you get in range you will not have any futher need of radar or lazer. You can then pull up and loft the bomb. Using the manual mode allows you an immediate release of the weapon, perfect in this case. And the weapon is fire-and-forget. The only thing in BMS is that presently, these GPS weapons have their range set at 2km which is just over a mile, rediclous. It should be set at 28km. That is 15 nautical miles. At about 500 knots, you might need to get a little closer.
Sincerely,
raven
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can someone elaborate on this? you’re saying that the GBU-31 has a much higher range than avionics say? say i’m at 5000 feet and i start a 600~ kn ascent at 30 degrees, at what range could i throw the bomb on manual and it would reach a target? and at which stage of my ascent should i throw? high? low?
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Currently there is some issue with Aerodynamics of bombs in BMS.
That allows bombs to fly waaay further than they can in RL.hopefully it will be fixed in future version.
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I thought it was realistic for JDAMs to fly ~10nm from high altitude/speed?
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I thought it was realistic for JDAMs to fly ~10nm from high altitude/speed?
From high alt, yes.
Lofting no so much. -
On a related note, has anyone tried making markpoints with the TGP, then dropping multiple JDAMs? I have tried it a few times (in different theaters) and even though I set 4 separate targets, all JDAMs fall onto target #4. If I set targets from the recon screen they work perfectly, and hit all 4 targets. Something seems amiss when using the TGP.
It works using TGP to set the markpoints but when you drop the JDAMS, TGP mustn’t be in IR mode, and the FCR needs to be SOI.
Finally got around to testing this (thanks to whomever bumped the thread) …. works.
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Since jdams have a range, meaning they have a built-in guidance and steering to your target. You can deploy them at any point within their range. Manual mode is perfect for this. In Manual mode you just press the pickle button and the weapon deploys. In reality, the weapons have a range of 15 NM. That is the max range which vastly aided by high angle loft at very high speed. An F-16 does better if the weapon is deployed from around 10 NM. If you used CCRP Mode, you would need to fly within about 4 NM of your target. If you want to have long and healthy lift as a pilot, don’t fly too near to the enemy airbases. If you do, expect to do a lot of jinking on the way around your target. JDams were to designed to improve aircrew safety with standoff and vastly improved accuracy. In BMS it is heart-pounding fun to use them.
Good hunting Siquerty
Raven
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I thought it was realistic for JDAMs to fly ~10nm from high altitude/speed?
Try lining up with your target for normal ballistic drop but offset 2-3 miles to one side and drop (using MAN obviously) and watch what the bomb does in ACMI reply. It shoots off the airplane 300 knots SIDEWAYS to hit the target. It’s hilarious and obviously physically impossible. LGB in BMS have problems too if you want to exploit them.
Real JDAM have cool features like improved gliding due to smart attitude management and they can be given custom terminal attack azimuth and elevation. Drop a JDAM south of a bunker and it can be programmed to fly to around hit the east side of it at 80 deg vertical angle for more penetration.