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Strange behaviour AIM-120??? (Air Engagement)

 
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Strange behaviour AIM-120??? (Air Engagement) - 8/22/2019 10:58:13 AM   
Capocarro94

 

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I notice that during AA engagement both planes at 36k feet, this missile (AIM-120) splash upwards up to 80k feet and start to descent to the target missing them too much, wasting a lot of missiles.
For the experts, this is the normal behaviour for this missile??? Launching, climbing to 80k feet 2500kts, starting descent few miles near the target???
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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/22/2019 2:57:32 PM   
daft

 

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What is the firing distance?

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/22/2019 4:33:18 PM   
Capocarro94

 

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quote:

ORIGINAL: daft

What is the firing distance?


From 60 nm (max range) to close range 10-20 nm. When switch to Home On Jam, it starts to descend from 70k feet to the target's altitude.

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/22/2019 5:46:23 PM   
bladesinger79


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I was here thinking that for some reason, the AIM-120 can't hit a darn thing. Played several scenarios. The hit % would finalize to about 50% or so, but the system keeps rolling high. Takes about 4 missiles to hit just one MiG-29. I gave up on thinking about his as part of the "chance dice rolls" system.

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/22/2019 6:53:38 PM   
daft

 

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Yeah, that sounds like a bug? Excessive LOFT?

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/22/2019 9:02:35 PM   
Dimitris


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quote:

ORIGINAL: bladesinger79
I gave up on thinking about his as part of the "chance dice rolls" system.


https://en.wikipedia.org/wiki/Stochastic_simulation#Random_number_generators

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/22/2019 9:09:34 PM   
Dimitris


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quote:

ORIGINAL: Capocarro94
I notice that during AA engagement both planes at 36k feet, this missile (AIM-120) splash upwards up to 80k feet and start to descent to the target missing them too much, wasting a lot of missiles.

It misses because it lofts? Ie. it is physically unable to reach the target? Or does it reach the target and is outmanouvered/decoyed/jammed/otherwise defeated?

quote:


For the experts, this is the normal behaviour for this missile??? Launching, climbing to 80k feet 2500kts, starting descent few miles near the target???

Generally yes. You want the missile to remain as long as possible in the upper, thinner atmospheric layers to minimize drag. There is a certain tradeoff involved here because you don't want the descent to be too sharp, for a number of reasons. The precise ceiling varies on launch distance but the loft logic is fairly consistent.

< Message edited by Dimitris -- 8/22/2019 9:26:30 PM >


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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/23/2019 12:30:54 AM   
Tailhook

 

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I believe we discussed it in tech support but I have definitely had a number of missiles overshoot (as in no endgame RNG calculations) because of whatever recent changes to the loft mechanics occurred. I distinctly remember this being less of an issue previously.

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/23/2019 5:06:59 PM   
Capocarro94

 

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quote:

ORIGINAL: Dimitris

quote:

ORIGINAL: Capocarro94
I notice that during AA engagement both planes at 36k feet, this missile (AIM-120) splash upwards up to 80k feet and start to descent to the target missing them too much, wasting a lot of missiles.

It misses because it lofts? Ie. it is physically unable to reach the target? Or does it reach the target and is outmanouvered/decoyed/jammed/otherwise defeated?


Eh... from Message Log:

12:13:35 - 12:13:35 - Weapon: AIM-120C-5 AMRAAM P3I.2 #3043 overshot its target...
12:14:49 - 12:14:49 - Weapon: AIM-120C-5 AMRAAM P3I.2 #3046 overshot its target...
12:16:45 - 12:16:45 - Weapon: AIM-120C-5 AMRAAM P3I.2 #3049 overshot its target...
12:18:27 - 12:18:27 - Weapon: AIM-120C-5 AMRAAM P3I.2 #3052 overshot its target...
12:24:06 - 12:24:06 - Weapon: AIM-2000A IRIS-T #3064 overshot its target...
12:24:12 - 12:24:12 - Weapon: AIM-2000A IRIS-T #3064 overshot its target...
12:24:13 - 12:24:13 - Weapon: AIM-2000A IRIS-T #3064 overshot its target...
12:24:14 - 12:24:14 - Weapon: AIM-2000A IRIS-T #3064 overshot its target...
14:12:30 - 14:12:30 - Weapon: AIM-120C-5 AMRAAM P3I.2 #3167 overshot its target...






< Message edited by Capocarro94 -- 8/23/2019 5:07:14 PM >

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/23/2019 8:07:46 PM   
Dimitris


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Okay, that's a start. Can you please post a pre-engagement save file?

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/24/2019 10:56:54 AM   
Capocarro94

 

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quote:

ORIGINAL: Dimitris

Okay, that's a start. Can you please post a pre-engagement save file?


What does means "pre-engagement save file"?? Do you need .save file of the scenario? I ended the scenario, where I have noticed this "AIM-120 Strange behaviour"...

< Message edited by Capocarro94 -- 8/24/2019 10:57:28 AM >

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/24/2019 1:35:10 PM   
Raptorx7_slith

 

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quote:

ORIGINAL: Capocarro94

quote:

ORIGINAL: Dimitris

Okay, that's a start. Can you please post a pre-engagement save file?


What does means "pre-engagement save file"?? Do you need .save file of the scenario? I ended the scenario, where I have noticed this "AIM-120 Strange behaviour"...


Yes he wants a save from just before the AMRAAMS were fired, its very difficult to solve a problem with just words.

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RE: Strange behaviour AIM-120??? (Air Engagement) - 8/25/2019 10:08:55 PM   
Kobu

 

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From my experience i think that the problem is when the missile change to active and start to guidind for himself. Normaly the enemy plane when detect the missile incoming dive to a minimun altitude (in my opinion too excessive) and the radar cone of the missile dont detect the enemy airplane because the vertical distance. Even so if the plane that launch these missile is lightning the enemy plane the missile should receive the uptdates and be more acurate.

Regards

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