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This one in Kolobrzeg... 20D / 20DSU?

Correct.
It is a V-755 20D (Guideline Mod.3), probably weight model.

How to check the accuracy of the new Digital Terrain Model, in the new SAM Simulator Version 0.922.

(It has better than 90m horizontal accuracy, utilizing the NASA SRTM data)

Step 1, Using Google Earth, find the most famous S-125M Neva (SA-3B Goa) site in History.
(bit North-West from Belgrade)


Step 2, Using Google Earth's Street View feature, look around, and find the "Avala" Mountain.
(This is where the Serbian air defense HQ was located in 1999)


Step 3, Remember, that it is at 119 degrees, and a bit over 40km in distance.

Step 4, Select different SAM systems, in the OAF situation, and locate the "Avala" Mountain.






Step 5, Find other historic landmarks, "Thud Ridge", "Pyramids", etc...

Hi
this
buton is for what? how to use it? ... Please (it's in S-125)

Hi,

Operating frequency switch, of the SNR.

It has 3 settings.
down - Lambda-I, frequency no.1 (It is the default [peacetime] setting, the cover used to be sealed.)
middle - Lambda-II, frequency no.2 (It is the wartime setting, can be switched only when the seal is broken.)
up - AVT., automatic frequency change between no.1 and no.2, in random time, to confuse jammers.

At the right side of the desk, there is two green lamps, indicating the current frequency.

Br,
Hpasp

Early attempts at being frequency-agile...Sounds good!

Speaking of fire-control radars, how logistically difficult would it be to repair or replace the radar component of a SAM site after being suppressed by enemy anti-radiation missile, in theory? Those radars are complex...

Speaking of fire-control radars, how logistically difficult would it be to repair or replace the radar component of a SAM site after being suppressed by enemy anti-radiation missile, in theory? Those radars are complex...

I'm not so good at theory , so let's speak about real history.
During 1999, NATO faced its most expert enemy so far, the Serbian Air defense.

Belgrade was defended by the 250th Air Defense Brigade, equipped by 8pcs of S-125M Neva (SA-3B) SAM battery.

From the 208pcs HARM missile launched during Operation Allied Force against SA-3's, only 5.3% (11) arrived.
During 2.9% (6) hits, the SNR were repairable within 12 days.
During 2.4% (5) hits, the SNR was destroyed.

Of course, the Serbians were experts in their business...




In the future, I plan to include those real historical situations into the SAM Simulator.

SAM Simulator V.922 released

http://sites.google.com/site/samsimulator1972/home

v0.922 (06.24.2011)
Include NASA digital terrain model (90m horizontal resolution), to simulate realistic earth clutter
Expanded documentation.
Add the possibility to select between more missile types for a system.
These missiles will fly within 1% of real firing range data.
V-755 20DSU and V-759 5Ya23 for the Volhov.
V-601P 5V27U and V-601PD 5V27D for the Neva.
Will support any Monitor resolution at or above 1280x1024.

That's something impressive!

Hooray!

Thank's for answer Hpasp.

Interested for French & Arabic Language traduction (translation)? (for free of cores )

and thanks for released

Sgt.Kairo

SA-3B_Russian.pdf - It's not "V2" =(

Corrected, Russian and Japanese V2 documentation is added.

Documentation version 110627 is also released.

It contains Russian/Chinese/Japanese translation of the expanded (Version2) documentation...

Hi

i don't now why, but the missile are very slow in this last release V.922 (may be only on my computer /P4/3.2Gh/750Mb-Ram),

in V.922, be-twin 5Km to 15Km (10Km) it take 36s for the 5V27U and more than 37s for the 5V27D

But in V.921, for the same range it take 20s (only!)

- speed corrected in this release ?, or slow & old P4/3.2Gh ?,

what do you think Hpasp?

PS: i have just test SA3B-GOA

Sgt.Kairo

Haven't tried the S-125M1 yet...but the speed of the 5Ya23(S-75M3) is indeed lower in this version in average, around 400m/s to 700m/s from the readout on-screen depending on time of flight, target altitude, and probably a lot of other factors...as far as I can tell. Definitely some major change in the flight model, I'd say.

It's also more difficult shooting at low altitude target with the S-75M3 now even with SDC, 2 of the 3 20DSU's I shot at a simulated A-4 at around 1000m AGL missed, although the one that hit scored a kill. Those ground clutters are great fun!

...And it certainly wouldn't be very healthy getting illuminated by that multiple-hundreds-of-kilowatt microwave beam, even at 20+ km range.

Missile behavior is vastly improved in this version.
Now they are flying according to actual firing range data.


5Ya23...

Max speed and overload capability (depending on target altitude):
at 300m altitude, 785m/s (Mach2.6), 6~7g
at 10km altitude, 910m/s (Mach3), 7~9g
at 25km altitude, 1125m/s (Mach3.7), 3~3.3g
at 30km altitude, 1230m/s (Mach4), 2.1~2.4g

i'm going to test 5V27d/U speed by my self !
if i return safe = 5V27d/u speed fail.
else

Sgt.Kairo (now pilot)

V-601P speed/distance/flight time vs elevation angle.

Hi !


Ready for report Sir!

"
20:32 27th of March 1999
Third Night of the Operation Allied Force raid against Serbia.

Targets:
Beograd - 4 flight of F-117A Stealth

S-125M1 Neva


42:08, V601PD 5V27D Missile launched on Channel-1
Target distance: 15km
Target azimuth: 245�
Target elevation: 31�
Target altitude: 7,9km
Missile guidance method: PS (Lead)


42:15, V601PD 5V27D Missile launched on Channel-2
Target distance: 15km
Target azimuth: 247�
Target elevation: 31�
Target altitude: 7,9km
Missile guidance method: PS (Lead)


43:16, Missile exploded on Channel-1
F-117A Vega-31 killed by SAM. (miss distance: 18m)

43:23, Missile exploded on Channel-2
F-117A Vega-31 killed by SAM. (miss distance: 16m)

44:01, V601PD 5V27D Missile launched on Channel-2
Target distance: 14km
Target azimuth: 274�
Target elevation: 30�
Target altitude: 7,3km
Missile guidance method: PS (Lead)


45:03, Missile exploded on Channel-2
F-117A Vega-31 killed by SAM. (miss distance: 9m)

Total, SNR On Air Time: 3min 4sec
"

Col. Zoltan Dani shoot me down ( me in-F117)
Now i'm
The speed test of 5V27d/U is
I


- What about French & Arabic translation? just send me English original documents (PDF, Doc) not locked.
i will my head to do it !

Sgt.Kairo

43:16, Missile exploded on Channel-1
F-117A Vega-31 killed by SAM. (miss distance: 18m)

http://youtu.be/_QY9mDe5fbY





- What about French & Arabic translation? just send me English original documents (PDF, Doc) not locked.

No problem, just drop me your Email.

At 1:40 you can see the P-18 metric wavelength target acquisition radar, that played key part.
I was honored to spend two days with Col. Zoltan Dani (who is an ethnic Hungarian) and had very interesting discussions.



I'm at the right side of the picture, holding a piece of the downed F-117A.
At the left side, history's most famous Neva battery commander.