Hello,Hpasp.I have another question...China got 5 SA-75 between 1958-1959,do you know they are"5 van"or"3 van"?

Warpact started to receive the "3 van" SA-75M Dvina (SA-2B) version in 1960.
I would bet that the 3 live and 1 trainer system shipped in 1958, and the 2 systems shipped in 1959 were SA-75 Dvina (SA-2A) "5 van" versions.

Hpasp
Free SAM Simulator, "Realistic to the Switch"
(U-2 over Sverdlovsk, B-52's over Hanoi, F-4 Phantoms over the Sinai, F-16's and the F-117A Stealth bomber over the Balkans.)
http://sites.google.com/site/samsimulator1972/home

Book from the author - Soviet Nuclear Weapons in Hungary 1961-1991
https://sites.google.com/view/nuclear-weapons-in-hungary/
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