why sa-6 missile armed with 4 air inlet ???? sustiner sa-6 missile is ramjet?????

Yes, you can of course :-)

LEGO KRUG...

Yes, sustainer is solid ramjet.
(from here:)
http://www.ausairpower.net/APA-2K12-Kvadrat.html

1 1SB4M CW monopulse semi-active homing seeker with Doppler closure rate capability
2 3E27 CW radio two channel proximity fuse (30 m nominal radius)
3 3N12 57 kg blast-fragmention warhead
4 1SB6M Autopilot
5 Ramjet intake ducts
6 9D16K sustainer solid gas generator charge (67 kg LK-6TM reducing propellant)
7 Frangible seals
8 Boost stage solid propellant charge (172 kg VIK-2 propellant)
9 Exhaust nozzle
10 Cruciform tailfins
11 Cruciform wing

GREAT!
I wonder where he got pieces to build it....

This isn't the first time that a SAM has out-performed its stated capability. This happened in the falklands as well. There is more to a SAM engagement zone than just rocket capability.

Actually the borders of the SAM (guaranteed) destruction zones in the Soviet systems are not like hard walls.

They just state, that inside this zone, the missile will kill its (non jamming, non maneuvering) target with 97% chance.
Outside of these zones, the chance of hit will be dramatically reduced.

Even the official firing manual states some case, where missile should be launched while the expected destruction point is outside of the guaranteed destruction zone.

Yep, I figured it was something like that

A insteresting video on Syria Today.... some russian and ¿Chinnesse? radars complex
http://www.youtube.com/watch?v=nYen5h13Dck&feature=player_embedded

Just some additional info, to help the brainstorming here...
Contrary to the RPC 1.4 or 0.7 degree beam, its IFF system has a whooping 10 degree "pencil" beam!!!
If the target is inside of it, giving "I'm your target" signal, the crew could accidentally lock on target, 60km away from the actual IFF signal sender.

This is why own fighters should stay far away of any S-200 engagement.
(See piston table above.)


WARPACT procedures called several IFF checks during an engagement.
1st check after target acquisition.
2nd check just before missile launch.
3rd check during missile flight.

My guess is the crew did several IFF checks on the passenger plane, just the drone was inside of the 10 degree area...