[CHECKING] MAVF doesn't slew if slaved to TGT

[Flagrum]

This was originally meant as reply to https://forums.eagle.ru/showpost.php?p=4022391&postcount=4 (now closed)

 

 

If a target is designated, i.e. per WPDSG or TPOD, and the MAVF is slaved to it, it can not be slewed anymore. You have to undesignate the target first.

 

This seems weired to me as you can not "sweeten" a lock. Or worse, if the MAV does not lock right away - if the designated target was not precise enough - you can't even slew it to the actual target. Undesignating the target in this case, i.e. losing/reducing the available SA, in order to remedy that seems odd to me.

 

This issue is worsened because of the fact (different bug/issue?) that the MAV, once slaved to the target, is not ground stabilized. I.e. the MAV looks initially at the target, but as the aircraft moves, the MAV's line of sight moves with it accordingly and eventually ends somewhere completely different (+ unable to slew it back manually).

Edited August 29, 2019 by Flagrum

[NineLine]

I at first agreed it was a bug, then I did some Maverick runs, with both TGT point from the HSI and TGT point from the TGP.

 

1) So in the case of a TGT from the HSI, it generally isn't a point you would expect to get a lock. So in this case, you slew to that point, undesignated, then through the Maverick sensor, you slew to your desired target.

 

2) In the case of the TGP, your TGT point should be right on your desired target, so that when you slew, you should get a good lock right away, because you slewed within the parameters of the Maverick. If you are slewing to the TGT point outside the range of the seeker, that is when you are going to have an issue, and even then, if your TGP mark is good, just re-slewing when you are in range usually works.

 

In both cases, this worked for me without issue. So in case 1, you did need to manual slew, and undesignated when you were in range to do so with the Maverick is fine. In case 2, you should get a good lock on slew to the TGT point, and no need to slew manual there.

 

As for the ground stabilization, we have no info that it is capable of this, and that is why you are not seeing it currently.

[Ziptie]

And you can just continue to "designate target" with TDC depress on the TPOD until the maverick is in range. Found that to be the easiest way, personally. Can find the target from 30 miles out, and then when getting into the 10 mile range from target, just continually pressing TDC depress will get a solid lock, every time.

 

Cheers,

 

Don

[Flagrum]

It just seems odd to me to have to undesignate my target in order to get a lock of my target.

 

On the other hand, even without ground stabilization, shouldn't the MAV seeker head keep looking at the designated target if it is slaved to the designated target?

 

To me, it would make more sense, if it were like this, either

a) slew MAV to TGT once but then let me slew it manually, OR

b) slave MAV to TGT but then let it keep looking at it

[Ziptie]

It just seems odd to me to have to undesignate my target in order to get a lock of my target.

 

On the other hand, even without ground stabilization, shouldn't the MAV seeker head keep looking at the designated target if it is slaved to the designated target?

 

To me, it would make more sense, if it were like this, either

a) slew MAV to TGT once but then let me slew it manually, OR

b) slave MAV to TGT but then let it keep looking at it

 

You don’t have to undesignate it. You just keep pressing TDC depress, with the DDI in which the FLIR page is displayed, to slew and lock the maverick seeker head. Don’t have to undesignate.

 

Cheers,

 

Don

Edited August 30, 2019 by Ziptie

[NineLine]

It just seems odd to me to have to undesignate my target in order to get a lock of my target.

 

On the other hand, even without ground stabilization, shouldn't the MAV seeker head keep looking at the designated target if it is slaved to the designated target?

 

To me, it would make more sense, if it were like this, either

a) slew MAV to TGT once but then let me slew it manually, OR

b) slave MAV to TGT but then let it keep looking at it

 

No, it doesn't make more sense based on how the Maverick works.

 

If you are slewing to a TGT point with an HSI/WP TGT it's reasonable that that target wouldnt be where you wanted to shoot anyways, so it just gets you in the ballpark, undesignated and slew where you need to be.

 

And if it's a TGP TGT, well then if you did everything right, you shouldn't need to slew at all.