JSOW Turns
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In the BMS Training manual for Mission #15, Inertially Aided Munitions on p136 there is a picture and text that says the 270° JSOW will turn left and the 315° JSOW will turn right. I’m wondering why the missiles need to make the turn when I already fired the missiles from a 270° Mark INS steerpoint and from a 315° Mark INS steerpoint. Shouldn’t the missiles head straight in without a turn?
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@TRN:
The FCR vertical line is representative of our current heading: 295°. As you can see the first column is angled about 20-25° to the left and the second column is angled about 20° to the right. We can now estimate the axis of the first column to 270° and the axis of the second column to 315°; these will be our JSOW attack azimuths.
If you’re following the training program, you should be on a heading of approx 295*. That means at launch your JSOW will be on a heading of approx 295*. You want each pair of JSOW to turn to align with the two respective columns (one on a 315/135 axis and one on a 270/90 axis).
Your markpoints do not contain heading information …… think of them as a 2D point on the ground. That is the point you want the JSOW to fly to. Your input of 315* heading and 270* heading, respectively, tells the JSOW what ingress heading to fly to the markpoint.
IOW, the JSOW pairs will fly off your jet on a 295* heading, then at or before 4nm, will turn to a 315* and 270* heading, respectively, and line up on your markpoint … and on the column axis.
Edit:
Like so:
Edit2:
BTW, without setting the attack azimuth your JSOW would hit (or split, if you have a ripple option selected) your markpoint …. BUT on a direct heading/azimuth from your aircraft for both markpoints. They would fly out straight from the jet, direct to the markpoint, and NOT align with the column axis.
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If you’re following the training program, you should be on a heading of approx 295*. That means at launch your JSOW will be on a heading of approx 295*. You want each pair of JSOW to turn to align with the two respective columns (one on a 315/135 axis and one on a 270/90 axis).
Your markpoints do not contain heading information …… think of them as a 2D point on the ground. That is the point you want the JSOW to fly to. Your input of 315* heading and 270* heading, respectively, tells the JSOW what ingress heading to fly to the markpoint.
IOW, the JSOW pairs will fly off your jet on a 295* heading, then at or before 4nm, will turn to a 315* and 270* heading, respectively, and line up on your markpoint … and on the column axis.
Edit:
Like so:
Edit2:
BTW, without setting the attack azimuth your JSOW would hit (or split, if you have a ripple option selected) your markpoint …. BUT on a direct heading/azimuth from your aircraft for both markpoints. They would fly out straight from the jet, direct to the markpoint, and NOT align with the column axis.
Thanks for the extra detailed explanation. When you said markpoints do not contain heading information, that cleared it up for me.
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Agave Blue
Hey…I employed them today, not in the training TE but in a KTO campaign mission, and the two were on a great column heading; however, the seem to impact at a certain point (TGT stpt) without flying the length of the column and releasing bomblets. I had the ROB set for 4nm, EGA was set to 1000ft, and the tank BNs were at 200 FT elevation. I followed the weapons to the ground using the weapons view, and both seemed to dive right into the earth. Is this what I can expect?
Thanks in advance.
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I would say, no, that’s not what to expect. EGEA maybe a little low. I’d look for 2000 - 3000. Also, visually, the canister opening, etc. may not be modeled. On the ground what you should see is pattern of dust around where the bomblets struck. If you watch it real-time, it should grow from one end to the other.
Only count on covering …. ?1/3rd of a column with JSOW … maybe less.
Edit:
Another thought. AGM-154A is the cluster munition. AGM-154C is a unitary war head.
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I would say, no, that’s not what to expect. EGEA maybe a little low. I’d look for 2000 - 3000. Also, visually, the canister opening, etc. may not be modeled. On the ground what you should see is pattern of dust around where the bomblets struck. If you watch it real-time, it should grow from one end to the other.
Only count on covering …. ?1/3rd of a column with JSOW … maybe less.
Edit:
Another thought. AGM-154A is the cluster munition. AGM-154C is a unitary war head.
Rgr. Thx, brother. I will raise the EGEA. This was the A model.
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That worked AB. 40 kills. Wingie hit 19. Thanks.
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