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#3507202 - 01/30/12 01:10 PM Re: SAM Simulator [Re: Hpasp]
montieris Online   smile
Junior Member

Registered: 09/11/11
Posts: 89
Loc: baltics
3D AAR works great!
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#3507260 - 01/30/12 02:34 PM Re: SAM Simulator [Re: Hpasp]
max2012 Offline
Member

Registered: 12/27/11
Posts: 423

The question of how to do a report file in SAM!

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#3507340 - 01/30/12 04:05 PM Re: SAM Simulator [Re: max2012]
wasfa Offline
Member

Registered: 01/24/12
Posts: 123
Originally Posted By: max2012

Photos are very good

I really liked

The question of where they filmed the Volkhov, the Neva .

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Russian PVO Museum

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#3507366 - 01/30/12 04:29 PM Re: SAM Simulator [Re: Hpasp]
Wolfhound Offline
Member

Registered: 10/16/99
Posts: 125
Hpasp

The other day I was reading a document (thesis) regarding Wild Weasel missions against the SA-2 SAM in Vietnam and it mentioned a couple of interesting things about the SA-2 that I wanted to run past you and get your opinion on for accuracy:
'......the SA-2 system usually required a high degree of operator skill to engage fighters, for there was an appreciable delay between the time a need for a direction change was recognized and when the missile responded to the new flight path.'

'The SA-2, despite its radar guidance and maneuverability, was not physically capable of making drastic changes of direction to compensate for significant evasive maneuvers made by its intended target. There was about a 5-second delay between the time the Fansong's computer recognized a need to alter the missile course and when the missile actually responded to the new guidance command.'

Would you agree with these statements? I'm quite surprised at the apparent delay in missile guidance if true.

Thanks
_________________________
*********I have quite a large collection of Flight, Weapon Systems, Tactical & Supplementary Aircraft Manuals for Jets, Helicopters & some Props, spanning the Vietnam era to present. If you're interested in trading Flight Manuals, mainly for modern military aircraft, send me a PM.*********

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#3507400 - 01/30/12 05:12 PM Re: SAM Simulator [Re: Hpasp]
ricnunes Offline
Senior Member

Registered: 12/17/01
Posts: 3352
Loc: Portugal
Originally Posted By: Hpasp
I checked the code, and the Vega part still has the 300m sensitivity. (bit too much)
Did you receive KRO signals during missile flight?
If the set range is far from the real target range, the missile engine program might cause the missile to burn.
Also, as the missile decelerate during unpowered glide, the chance to hit anything is reduced.

I think your missiles that not scored, avoided the target by far margin.



Humm, this really seems strange and it kinda reeinforces my convinction that something is perhaps wrong regarding the Vega's radio fuse. Like I previously said I never go a missile detonation above 18 meters since it's strange that with the SA-2 I get detonations up or even more than 100 meters.

Regarding your question, yes I do get the KRO signals when the SA-5 missiles miss their target.

Regarding the target's range, you're mentioning the Left dial on the "-C" button console, right? If yes, I usually place that range near the real target range - there could have been one occasion or two that I may have forgotten this but I think that usually don't forget this.

Anyway, I still think that after firing large dozens (maybe a hundred or so) of SA-5 missile that all of them either hit by a very CLOSE proximity (less than 18 meters, with an average of perhaps 4 to 6 meters) or completly miss (more than 300 meters?), this again I think it's very wierd inded...

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#3507483 - 01/30/12 06:35 PM Re: SAM Simulator [Re: Hpasp]
Lieste Online   sigh
Member

Registered: 10/07/08
Posts: 1268
Remember it is the only homing missile so far - the guidance precision is as high at long range as the lesser missiles can attain at their optimal short range.

If guidance is lost the missile will fly wide, but a good track should result in a close pass. The missile will fail to guide if the target return signal is lost, or if the gimbal or gimbal-rate limits are reached during the lead turns, other wise cross track error reduces with proximity to the target due to attempting to maintain a pseudo-constant lead angle relative to the missile/target LOS.

The command guidance gives increasing lateral error with range for a given lead angle.

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#3507512 - 01/30/12 07:18 PM Re: SAM Simulator [Re: Hpasp]
ricnunes Offline
Senior Member

Registered: 12/17/01
Posts: 3352
Loc: Portugal
Almost every shot that I took with the SA-5 NO signal/lock was lost and also in every situation that I got hits in the targets they were flying directly towards my radar (thus having good Doppler velocity). Every target that I shot (and got a hit) at was either a target drone or a SR-71 (in 1967 - Op. Tallinn) which meant that the target wasn't manouvering at all (target drone) or hardly manouvered (SR-71/A-12).

Unless I'm doing something wrong or I read something more concrete regarding the SA-5 fuse/detonator which concurs with the current SA-5 behaviour I'm not "buying" any of the explanations given so far (please don't get me wrong) and the reasons are:
-> The SA-5 and the SA-2 have a similar warheads
-> The SA-2 warhead is capable/designed to shot down an aircraft if it detonates at distances up to 100 meters from the target (which is modeled in SAM simulator)
-> Therefore the SA-5 warhead should have the same explosive power (capable of shooting down aircraft at distances up to 100 meters) so it doesn't make ANY SENSE that this missile should only detonate a small distances (less than 18 meters) or is built with this behaviour in mind.
-> The reason why missiles that the SA-5 and SA-2 have such powerfull warheads is to give those missiles an excelent capability of shooting down aircraft even if the missile passes at considerable distances from the target (up to or even more than 100 meters)
-> So I honestly believe that the SA-5 must certainly have a fuse that detonates the missile if it passes at considerable distances from the target (up to or more than 100 meters).
-> If the real SA-5 missiles only detonated at very short distances like currently happens in SAM Simulator, why would this missile have such a powerfull warhead in the first place?? If such a behaviour was true than it would make much more sence to have a much smaller warhead in the missile (SA-5), making the SA-5 a smaller and more manouverable missile or instead adding extra fuel and giving the missile even more range or even perhaps add more electronics and make the missile more precise and/or more reliable (instead of having such a large warhead).

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#3507520 - 01/30/12 07:26 PM Re: SAM Simulator [Re: ricnunes]
Lonewolf357 Offline
Member

Registered: 01/12/12
Posts: 169
Originally Posted By: ricnunes
Well, I started to play with the SA-5 Gammon/Vega and I must say that this one looks considerably diferent (on how it works) than the SA-2 and SA-3 that I'm now more used to.

But I think that I have a bug to report regarding the SA-5:
-> The SA-5 fuse only seems to work when the missile (SA-5) passes VERY NEAR to the target. For example: I never managed to get a target detonation at distances more than 12 meters (normally I get target detonations at distances of 4-6 meters with the SA-5). This seems very odd since I can get target detonations at more than 100 meters with the SA-2 and even with the SA-3. So this means that getting a kill with the SA-5 is and will be much harder than getting a kill with the SA-2 since with the SA-5 in order to get a kill the missile must almost hit the target "by impact" which again is very odd since the SA-5 is supposed to be a much more advanced missile than the SA-2.


I would apreciate an answer regarding this issue.


I have just managed to get Vega's detonation at 280 meters from the target. It appears that everything is fine with its proximity fuze, just your successful shots passed very close to the target, and your missed ones passed much farther than 300 meters from it. Have you tracked your missed shots by your P-14 radar? They often fly far enough from the target to be noticeable there. Here's my AAR:

Asuluk training ground.

Practice target:
RM-217 Zvezda [program-3] simulating F-117A Stealth

S-200VE Vega-E


00:30, Practice target RM-217 Zvezda [program-3] simulating F-117A Stealth launched

19:11, Missile launched from launcher-2
Target distance: 41km
Target azimuth: 80°
Target elevation: 19°
Target angular speed: 677m/s (2,4 Mach)
Target altitude: 14km
RPC mode: MHI - Narrow Beam
GSN mode: Acquire target before launch
Received signal strength: 25,7dB


19:18, Missile launched from launcher-1
Target distance: 37km
Target azimuth: 82°
Target elevation: 21°
Target angular speed: 624m/s (2,2 Mach)
Target altitude: 14km
RPC mode: MHI - Narrow Beam
GSN mode: Acquire target before launch
Received signal strength: 27,5dB


19:43, Missile exploded
Practice target RM-217 Zvezda [program-3] simulating F-117A Stealth hit by SAM. (miss distance: 280m)

19:48, Missile exploded
Practice target RM-217 Zvezda [program-3] simulating F-117A Stealth killed by SAM. (miss distance: 35m)

Total, SNR On Air Time: 2min 1sec

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#3507635 - 01/30/12 10:20 PM Re: SAM Simulator [Re: Hpasp]
wasfa Offline
Member

Registered: 01/24/12
Posts: 123

Military training in the Nizhny Novgorod State University (formerly Gorky).







Pictures from:
http://www.unn.ru/rus/fvo/?main=8&abc=1

Very interesting video to download:
http://www.unn.ru/rus/fvo/video/fvo_nngu.zip

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#3507709 - 01/30/12 11:46 PM Re: SAM Simulator [Re: Hpasp]
wasfa Offline
Member

Registered: 01/24/12
Posts: 123
Could you send me more about the third type?
(Not so artistic?)


the original third is more than 5Mb, you can dowload it from her:
http://www.mediafire.com/?dyf2y6y3ib0x75u

this Pics is for Hpasp

















I have an others pics, but not ready yet (lost some whee in my HDDs , must found them first!


Edited by wasfa (01/30/12 11:50 PM)

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