#3496567 - 01/17/12 04:12 PM
Re: SAM Simulator
[Re: Lieste]
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Hpasp
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With Krug, you appear in the post above to state that K3 is the 'arm proxy fuse' command, rather than the Volhov's detonate? If this is correct then you need only fix case 1) missile detonates on chaff prior to K3 boresight, and not case 2) missile passes beyond K3 range boresight and detonates on proximity fuse at target range.
At the Volhov, K3 could mean three separate things...
- Arm Radio-Proximity fuse - Detonate immediately - Use SL mode (if it is signaled second time)
At the KRUG, K3 means Arm Radio-Proximity fuse.
Last edited by Hpasp; 01/17/12 04:13 PM.
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#3496607 - 01/17/12 05:23 PM
Re: SAM Simulator
[Re: Hpasp]
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piston79
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Actually, I'm quite happy to see questions so deep in the system... ... it means, that you learned its behavior, in an incredible deep level. I've told once, that it would be quiet interesting, that we could create situation, which were described and modeled by the real milittary officers, and all those modeling and test data is now available. I am very curiouse about what results would we ( and actually YOU ) achieved with the SIM! - Use SL mode (if it is signaled second time)What is it? I didn't met it... A question: What is happening with missiles when they reach their max. range? they just stop transmit back to SNR and I know that Volkhov's climb up or goes balistic (depends of the switch "I-62B"), but what with older types? They should explode after maximum amount of time (I think it was 85 seconds)... In this matter what "Vozvrat" do - only cuts the inner transmiter of the missile and leave the missile in self destruction mode (after certain ammount of time) or detonated it immediately? What about the other complexes? (curious abot S-200the most)...
Last edited by piston79; 01/17/12 05:37 PM.
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#3496641 - 01/17/12 06:05 PM
Re: SAM Simulator
[Re: piston79]
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Hpasp
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- Use SL mode (if it is signaled second time) What is it? I didn't met it... reading
Volhov manual page 44,45,46. 4. VKL. SL-I switch-down. In this case, if the missile misses it will pitch up to fly a maximum climb profile. 4. VKL. SL-II switch-up. With this selected, if the missile misses the target it will continue on a ballistic path.
What is happening with missiles when they reach their max. range? they just stop transmit back to SNR and I know that Volkhov's climb up or goes balistic (depends of the switch "I-62B"), but what with older types? They should explode after maximum amount of time (I think it was 85 seconds)... In this matter what "Vozvrat" do - only cuts the inner transmiter of the missile and leave the missile in self destruction mode (after certain ammount of time) or detonated it immediately? What about the other complexes? (curious abot S-200the most)...
Depend on missile type. If the on-board power supply is depleted, than they just go ballistic. Due to its speed (over Mach6), the Vega missile is simply burn if the autopilot stop functioning...
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#3496724 - 01/17/12 08:18 PM
Re: SAM Simulator
[Re: Hpasp]
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piston79
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Yep, the switch is SL-I or II... Didn't know it was for setting the K3 command in case of miss... I've read that "Vozvrat" should be pressed if the target was missed or after time, and that makes me to think that self destruction is from some kind of iternal clock... Don't remember where, but also read thah NVA officers stopped that clock and achieved almost 80 km shot, which results on colateral damage on the ground... I was wonderning what "Vozvrat" exactly do?
Last edited by piston79; 01/17/12 08:26 PM.
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#3497116 - 01/18/12 08:54 AM
Re: SAM Simulator
[Re: piston79]
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Hpasp
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Yep, the switch is SL-I or II... Didn't know it was for setting the K3 command in case of miss... I've read that "Vozvrat" should be pressed if the target was missed or after time, and that makes me to think that self destruction is from some kind of iternal clock... Don't remember where, but also read thah NVA officers stopped that clock and achieved almost 80 km shot, which results on colateral damage on the ground... I was wonderning what "Vozvrat" exactly do?In STAND (normal) radio proxy fuse mode, 300m before the range boresight, K3 command is sent out, to arm the Radio-Proxy fuse. If the missile avoid the target, and fly further the range boresight, the K3 command is emitted again by the SNR. When the K3 received second time, the missile will do, what the SL-I/II switch signaled on the launcher. If you press the VOZVRAT before the missile reached the range boresight, the K3 is signalled twice.
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#3497194 - 01/18/12 01:18 PM
Re: SAM Simulator
[Re: max2012]
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max2012
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There is still a picture! What is the toggle switch is active or not. Why is it needed?
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#3497359 - 01/18/12 04:57 PM
Re: SAM Simulator
[Re: vintorez]
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piston79
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Another bug-like: Neva tends to lose angle track of jamming target after a few seconds - I was unable to shoot anything around Hanoi, I lost every single missile after launch.That is a feature! Neva, and KRUG arms the radio-proxy fuse right after the launch. The Chaff field will detonate these missiles, if you aim a B52. With these two systems, the Weasels, and F4's around the airports can be dodged only. Nonono! I lose a missile BECAUSE I lose the track. C'mon, I am not so absolute a rookie not to recognize chaff. Might-be-bug: - Why Neva missiles are immediately lost after auto-track in angle is lost, even for just a moment? (SDC only and tgt radial speed change, of course). Volkhov has no such feature and you can guide missiles without auto-track, if necessary.
This is the real Neva system behavior. It is related to the fact, that search and tracking are handled by different antennas, and coordinate systems.I think this is about the NEVA case....
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#3497452 - 01/18/12 06:37 PM
Re: SAM Simulator
[Re: Hpasp]
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piston79
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Just a Polish Officer, who has a button that emits the K3 twice. He will push it, when the missile is at 20km downrange. Check range!
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#3497501 - 01/18/12 07:42 PM
Re: SAM Simulator
[Re: Hpasp]
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piston79
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I am sorry, obliously I forgot how to deal with Neva... Thought that I could't fire if the "Razreshenie" is not lit... Sorry.... P.S. Did you consider to allow locks on ground clutter???
Last edited by piston79; 01/18/12 07:48 PM.
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#3498026 - 01/19/12 12:15 PM
Re: SAM Simulator
[Re: piston79]
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vintorez
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1) ‘Podgotovka’ of Krug missiles – can they remain in ‘ready’ (spinned-up) mode endlessly, or we have something more to simulate? 2) Locking on ground clutter – Piston has made a good point. In most cases I switch SDC off after locking angle+range, because I’m not perfect at wind adjustment and lock is sometimes lost. With SDC off it NEVER loses track - perfect track is maintained all the way despite rolling through lot of clutter which look essentially the same as the target. For the sake of realism (fewer multiple kills, sigh), I think it should change. Or, if real systems can do that, I wouldn’t say I’m not happy… 3) back to the problem of: Might-be-bug: - Why Neva missiles are immediately lost after auto-track in angle is lost, even for just a moment? (SDC only and tgt radial speed change, of course). Volkhov has no such feature and you can guide missiles without auto-track, if necessary.
This is the real Neva system behavior. It is related to the fact, that search and tracking are handled by different antennas, and coordinate systems.
BUT, if in real life whole shooting sequence is possible with transmitter off (I mean visual tracking which is not simulated), or even manual trackers can hold the boresight in place in case the target starts jamming or so already after launch (AS/ASAP lost, continuing on RS) - there is not a sine qua non condition that radar lock must be there. Boresight lines of target and missile tracking must be zeroed in anyway... By the way, if different antenna sets deal with target and missile, there must be same problem as with Volkhov 'narrow beam' - or misalignments can be ignored because of distances shorter than in Volkhov shooting?
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#3498046 - 01/19/12 12:50 PM
Re: SAM Simulator
[Re: vintorez]
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Hpasp
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1) ‘Podgotovka’ of Krug missiles – can they remain in ‘ready’ (spinned-up) mode endlessly, or we have something more to simulate?Only with Dvina/Volhov systems are the missile overheat simulated. Neva/KRUG/Vega has such a long overheat time, that is not simulated. 2) Locking on ground clutter – Piston has made a good point. In most cases I switch SDC off after locking angle+range, because I’m not perfect at wind adjustment and lock is sometimes lost. With SDC off it NEVER loses track - perfect track is maintained all the way despite rolling through lot of clutter which look essentially the same as the target. For the sake of realism (fewer multiple kills, sigh), I think it should change. Or, if real systems can do that, I wouldn’t say I’m not happy…Ground clutter is generally not caused the SNR to lock on it, just made spotting the target a bit more difficult. Generally please learn using SDC. (Its not a big issue, compared to Radio-Proxy Fuse settings.) With the Neva, the SDC has two modes... ... where the target speed should be below: BS - 600m/s MS - 200m/s If the target speed is over 600m/s, do not use SDC! Also SDC can only be used with 40Km mode. Do not use it with 80Km!!! BUT, if in real life whole shooting sequence is possible with transmitter off (I mean visual tracking which is not simulated), or even manual trackers can hold the boresight in place in case the target starts jamming or so already after launch (AS/ASAP lost, continuing on RS) - there is not a sine qua non condition that radar lock must be there. Boresight lines of target and missile tracking must be zeroed in anyway... By the way, if different antenna sets deal with target and missile, there must be same problem as with Volkhov 'narrow beam' - or misalignments can be ignored because of distances shorter than in Volkhov shooting? Volhov/Dvina can fire a missile, without target lock. Neva can only fire, if the target is locked at least in angle. Reason: While doing target acquisition with the Neva, only the UV10 antenna is emitting and receiving. It uses the Epsilon/Beta (up-down/left-right) coordinate system. When you go to AS, the coordinate system is changed from Epsilon/Beta to Fi1/Fi2 (45 degree rotated) coordinate system. The UV10 beam is locked, and the UV11 antenna pair does the scanning If you loose target lock, while your missiles are flying, the UV11 scan will stop, and you loose your missiles.
Last edited by Hpasp; 01/19/12 12:53 PM.
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Exodus
by RedOneAlpha. 04/18/24 05:46 PM
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