Notching tracks fly off scope

This is a variation on the old ghost track bug in TWS. When the contact notches the radar enters track hold for that track. All is well except the track will pick a random direction and drift towards the edge of the scope at multiple miles per second, which causes TWS-A to then fail horribly. This is reproducible with basically any BVR scenario where you launch and the enemy notches when the missile is detected (AI Su-27s are a good choice).

I think the main bug here is in the speed and direction of the track(s). The radar certainly should enter track hold upon a lost track, but my understanding is it should calculate the lost track's movement based on the last known position and velocity so as to provide the best possible guidance to the AIM-54. I wonder if the tracks are having some calculation going to an undefined value (or close to) as the target's closure approaches the F-14's TAS.

If no missile (phoenix) is in the air, or no track hold commanded by the RIO, TWS-A will not hold track.

Could you provide a small video, track please?

I don't have a track (yet), but think this explains some behavior I have seen a LOT! Right after launching a Phoenix, the contact gets dropped. I thought it had something to do with switching from TWS-M to -A on launching the Phoenix. But this analysis makes more sense, as it comes right after the bandit notches.

If no missile (phoenix) is in the air, or no track hold commanded by the RIO, TWS-A will not hold track.

 

Could you provide a small video, track please?

From the other TWS thread. The missile shot happens at ~2:30.

You can see the AWG-9 momentarily lose track after launch, then reacquire the contact within a frame. However it fails to correlate the held track back to the contact, and the launched track accelerates away from the original datum at Mach: Yes.

I've got the track in the original post:

https://forums.eagle.ru/showpost.php?p=4345758&postcount=103

Admin Note:

From the other TWS thread. The missile shot happens at ~2:30.

 

 

You can see the AWG-9 momentarily lose track after launch, then reacquire the contact within a frame. However it fails to correlate the held track back to the contact, and the launched track accelerates away from the original datum at Mach: Yes.

 

I've got the track in the original post:

https://forums.eagle.ru/showpost.php?p=4345758&postcount=103

Thank you, nice! We will take a look!

I've experienced the same wierd loss of track when launching in TWS-M, just to immediately pick it up again, but no longer correlated, thereby wasting shots (if it wasn't for magic INS, which is still a thing in MP, but might not be i SP).

Shouldn't the AWG-9 be able to correlate a lost contact with a track hold if we're talking a few seconds?

Sorry for just providing text. I'll try to get a track/video of this, as well as the active radar thing mentioned in the other thread.

 

Shouldn't the AWG-9 be able to correlate a lost contact with a track hold if we're talking a few seconds?

Only in TWS-A if a phoenix is in the air or if track hold has been commanded by the RIO.

I've experienced the same wierd loss of track when launching in TWS-M, just to immediately pick it up again, but no longer correlated, thereby wasting shots (if it wasn't for magic INS, which is still a thing in MP, but might not be i SP).

 

Shouldn't the AWG-9 be able to correlate a lost contact with a track hold if we're talking a few seconds?

 

Sorry for just providing text. I'll try to get a track/video of this, as well as the active radar thing mentioned in the other thread.

Same thing here, and TWS-A steers the radar cone away from the actual track most of the time.

If no missile (phoenix) is in the air, or no track hold commanded by the RIO, TWS-A will not hold track.

 

Could you provide a small video, track please?

This is 100% not the behavior in multiplayer right now. I have a million tracks of this happening and can reproduce it easily. Ill make one ASAP

Jester stays in TWS-A even with no missiles in the air and you cannot get him out of it.