HQ-9 vs S-300

The HQ-9 is China’s primary long-range domestic surface-to-air missile.

Outwardly, it seems similar to the S-300, using large flat face radars and a large missile that vertically launches out of a canister.

But since the Sino-Soviet split in the 1950s, China didn’t receive that much assistance in surface-to-air missile development from the Soviet Union. Is the HQ-9 just an evolution?

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