Gilligan

I did a few short missions with JTAC over the last week. Something is up with MRGS input. Whether I used the method I described or the method MeanJim, I get the same weird result. Basically after inputting the info and CZ'ing, the SOI indicator was way off over the horizon, and the TGP was looking out that direction. To "Fix" the issue, I had to go to my Mav's and cycle the fire modes through PRE/VIS/BORE and back to Pre, that put the cursor and sensors where they should be. I will repeat to confirm the issue (I had it twice, back to back) and provide a track later this week. Something is definitely up.

I usually set heading hold, so it hasn't really been an issue. However, that does sound simpler. I will give that a shot next time.

try: -Button 4 on ICP (STPT) -Press "2" then "1" (Should set steerpoint number as 21) -hold dobber right (long) (the DED Display will change to MRGS input mode after a couple seconds) -enter the MRGS as specified by JTAC -cursor over CNVRT and press ENTR -You will see the DED display change back into LAT LONG mode

You need to use steerpoints 21-25 to create steerpoints using mrgs. You you describe, step-by-step, the process you are using to create your mark/steer points in this instance?

Either exit the Markpoint DED menu by hitting return on the dobber or as stated above, use MSEL (0) on the ICP with the markpoint DED page active and it will set the currently shown markpoint as the current steerpoint and sensor POI.

Yeah, shouldn't be too much trouble. Maybe if I get some free time later in the week.

Is there an updated version?

nullApparently this table is not as comprehensive as I thought. Hopefully of use to some.

This is a game changer. holy crap.

Perhaps the INS drift is being modeled for the SPI cursor in the HUD/HMCS display, but is not being modeled for the TGP? That doesn't really jive with my experience, but it seems possible based on what yall are describing?

No. Pre-planned CCRP strikes are not possible in the F16C in DCS. You must correct steerpoint/markpoint drift with the TGP or HUD for accurate CCRP drops.

Fire the laser after the target is designated. You don't need to hold it "on," just a quick shot to get the ranging data. In my experience, for best results, don't actually designate the "body" of the target you want to hit. Designate a tire, the tread, or the ground under the target if you can see it.

In my experience you will not get a good boresight alignment on the ground, as it is not really possible, in most cases, to grab a point far enough out. Most anything you can grab while on the ground is going to be within one nautical mile. I prefer to do my boresight in the air, especially if I can find something that is already damaged or destroyed and I can easily see it's smoke plume. However if you are re-boresighting while in the air and attacking a target that SHOULD be pretty close. Just pay attention to the range you are finishing the boresight. For the most part, what you are describing is fiarly typical behavior that I would expect from the maverick.

Just for my own understanding, because I am interested in the reasons "why," as well. Going over the chucks guide again, the engine is fed from the fore and aft reservoir tanks. The reservoir tanks are fed via the corresponding fore and aft internal tanks. The fore and aft internal tanks are fed via the internal wing tanks. The wing tanks are fed via any of the 3 external fuel tank options. From what I am reading (and cross referencing the chucks guide), in layman's terms, the external tanks are drained first. Then the INTERNAL wing tanks will be drained. Then the Internal fore and aft tanks will be drained, and lastly the fore and aft reservoir tanks will be drained. That makes sense. The filling diagram seems less clear - from either ground or air receptacle, fuel is fed into centerline external tank and the fore and aft reservoir tanks, and then into the external wing tanks, via the externals? If that is the case it should not mater what the fuel state of the aircraft internal tanks are? Or does the fore and aft reservoir tanks feed the internal wing tanks, which in turn feed the external? Even then the centerline tank should fully fill anyway? I suspect this is a problem with the chucks diagram, as it seems to imply that the rest of the fore, aft, and resveior tanks are all filled in series AFTER the external and internal wing tanks are filled. This does not seem to align with the real world case as stated by RogueSpecter or the model's behavior in game. RogueSpecterGaming, from reading your technical comment, specifically that the valve to the line outlet of the internal wing tanks is open when the wing tanks are not full, and closed when they are, would mean that if the draining sequence was reversed for fueling, that once the wing tanks are full, that valve for the line out (or the inlet into the internal wing tank from the refuel manifold?) is closed, and therefore unable to fuel the external tanks? As to why the internal wing tanks fill before the external, is that a consequence of residual pressure in the externals? At that point it's a DiffEQ problem about how quickly the external tank can depressurize vs the rate at which the internal wing tanks are filled, with a supposed equilibrium around 5,000 pounds IRL, and 4000 lbs in-game. That makes sense. I think. Regardless, thank you for the technical explanation.

I'm at work and do not have the ability to view your track replay at present, however I believe what you're experiencing is parallax. The maverick seeker head(s) and the TGP do not share the exact same line of sight to a point on the ground, there is a difference in position for each of the optics. This means that after you boresight them at a given distance, looking at or trying to lock a target at a different distance will introduce SOME error called "parallax" (the effect whereby the position or direction of an object appears to differ when viewed from different positions, e.g. through the viewfinder and the lens of a camera.) The amount of parallax error varies with the difference from your boresight range that you are trying to ID/Lock/Engage a ground target. The reason it "behaves" how you want to when using the active pause is that you are at a single, steady, and unchanging distance to the group of targets (the few dozen feet difference between the targets is negligible). Where-as when you are actively flying, you could be anywhere between 15+ to 5 miles from your intended target depending on your approach & etc. I usually try and boresight my mavs right around 8-10nm, and try and lock targets at that same distance. As far as I can tell, he was not cursor-zeroing the SPI after initiating a pint/area/INS track on a location with the TGP (or other sensor), causing the offsets to remain in effect with all other steerpoints in his flight plan.