AG radar tracking movers
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…and what does “low level” mean wrt a CBU?
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Of course with a price…
That, Molni, is the question. How aggressive is too aggressive? Of course, it depends on the defenses.
Lorik and Stevie- I’ve had good luck with Mk20 , even as low as 500 ft., in a quick pop-up attack. A MP Bud likes CBU-87, but for me they seem to have finicky launch parameters. -
Here’s a video sample of my technique for CBU-87s on movers from a safe altitude. Start the video at 25:28 to jump to the action.
I find nothing wrong with GMT mode whatsoever, it works just as it should.
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That, Molni, is the question. How aggressive is too aggressive? Of course, it depends on the defenses.
Lorik and Stevie- I’ve had good luck with Mk20 , even as low as 500 ft., in a quick pop-up attack. A MP Bud likes CBU-87, but for me they seem to have finicky launch parameters.I mean in reality. That’s what Molni tends to think with, or so I think.
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That, Molni, is the question. How aggressive is too aggressive? Of course, it depends on the defenses.
Lorik and Stevie- I’ve had good luck with Mk20 , even as low as 500 ft., in a quick pop-up attack. A MP Bud likes CBU-87, but for me they seem to have finicky launch parameters.Having played a bit with RL Mk20s, I think 500 AGL could be on the absolute ragged edge…but it can also depend on what type of fuse is being used. I suppose. But seriously, I think 500 AGL is too low for getting much if any spread on the bomblets - or time of fall required for arm time on some fuses, for that matter. 1 to 2000 AGL is far more realistic for “low altitude”, if I recall. Doing a pop up attack is certainly reasonable, but I would still think you’d want to apex and release higher.
Used to have serious fun predicting the spread patterns for multiple Mk20s!
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Do the Mk 20 containers have variable spin? The SUU-64s apparently have a 0-2500 in 500 RPM increment. That would change footprint.
Hitting a T-55 with a Rockeye I would figure 500-900’ HOF would be a good sweet spot. 300-500’ HOF is good submunition density but unless you’re room for error in aiming is minimized. You really want a high submunition density for anything tough. CBUs are only area weapons against soft targets. Against armor CBU is a shotgun instead of a unitary bomb rifle. It’s still 1:1 weapon to target (or 2:1, 4:1) but a lot more of a sure thing.
Falcon CBUs are a little special. Yeah at BA 2000 (not a valid CBU-87 HOF but whatever) you can get away with eyeball leading if target is soft. I’ve also noticed that you’ll drop 1 large area and kill very little but a pair gets tons of kills like the first does 51%+ damage and the second finishes them off even with quite heavily armored targets. That doesn’t mesh with the actual weapon performance you’d expect in reality. When it’s hit-to-kill the density requirement goes very high and soon you’re dropping 2-4 cans and less than average HOF just to meet your density target.
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You guys have got yourselves distracted into( useful info on) CBUs.
Of course dropping a a dumb iron Mk 82 on a mover is not the way to go any more, but in the First Gulf War ( and in others) there isn’t always a choice. But I think Frederf got it right. GMT doesn’t track movers. Set up a TE last night with only two moving tanks and hit one with a Mk 82, but GMT didn’t track so I had to switch to CCIP and lead before pickling. I assume in real life GMT would track a mover.
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AFAIR the movers need to be above a minimum speed to feature on GMT. Otherwise they appear on GM
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AFAIR the movers need to be above a minimum speed to feature on GMT. Otherwise they appear on GM
Correct.
Not sure the LO/HI mode is implemented or not? (changing the rejection speed). -
It also has to be radial speed. GMT uses doppler, just like A/A.
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I don’t think that’s true. GMTI is generated based on the difference between two GM-type radar pictures. The indicator would be based on a threshold of difference data. If the radar is sharper in range or azimuth that would affect the ability to generate a sharp difference bump but it shouldn’t be radial velocity only.
MTR is actually two MTR settings. There is an MTR HI/LO for AA radar modes and an MTR HI/LO for GMT radar mode and they are independent.
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Do the Mk 20 containers have variable spin? The SUU-64s apparently have a 0-2500 in 500 RPM increment. That would change footprint.
Hitting a T-55 with a Rockeye I would figure 500-900’ HOF would be a good sweet spot. 300-500’ HOF is good submunition density but unless you’re room for error in aiming is minimized. You really want a high submunition density for anything tough. CBUs are only area weapons against soft targets. Against armor CBU is a shotgun instead of a unitary bomb rifle. It’s still 1:1 weapon to target (or 2:1, 4:1) but a lot more of a sure thing.
Falcon CBUs are a little special. Yeah at BA 2000 (not a valid CBU-87 HOF but whatever) you can get away with eyeball leading if target is soft. I’ve also noticed that you’ll drop 1 large area and kill very little but a pair gets tons of kills like the first does 51%+ damage and the second finishes them off even with quite heavily armored targets. That doesn’t mesh with the actual weapon performance you’d expect in reality. When it’s hit-to-kill the density requirement goes very high and soon you’re dropping 2-4 cans and less than average HOF just to meet your density target.
No, no variable spin in RL. However I should think that time of fall would make a diff - the longer the time of fall, the greater the spin? If they spin at all…which suddenly I’m not sure that they do.
True - it’s bomblet density that matters, and there are various types of bomblets…so it’s a combination of fusing, munition, and delivery that sums up the effectiveness of a Mk20. As a rule, Mk20s are generally dropped in pairs in RL…at least that was the way it was when I played with them.
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I don’t think that’s true. GMTI is generated based on the difference between two GM-type radar pictures. The indicator would be based on a threshold of difference data. If the radar is sharper in range or azimuth that would affect the ability to generate a sharp difference bump but it shouldn’t be radial velocity only.
MTR is actually two MTR settings. There is an MTR HI/LO for AA radar modes and an MTR HI/LO for GMT radar mode and they are independent.
I completely disagree. When you look at RL radar GM maps, they have a very poor resolution (especially angular) and are fairly noisy. Comparing those would yield nothing.
Those slides do a good job of explaining what you can see in various radar modes (GMT or GMTI as its usually known ; SAR as well).
[https://icerm.brown.edu/materials/Slides/sp-f17-offweeks/Discussion_of_Radar_and_Moving_Targets_]_Armin_Doerry,Sandia_National_Laboratories.pdf](https://icerm.brown.edu/materials/Slides/sp-f17-offweeks/Discussion_of_Radar_and_Moving_Targets]_Armin_Doerry,_Sandia_National_Laboratories.pdf)EDIT : reading those all the way, there is a technic that ressemble what you describe (slide 48 ). But 1/ this is in SAR maps; and 2/ there is absolutely no way it is implemented in the old APG-68.