Growth of the V-75 Dvina air defence missile system, designated SA-2 `Guideline' by NATO, started in 1953 as a medium to high SAM system for use against non-manoeuvring objectives including bombers. The machine became operational in 1957 whenever PVO-Strany formed SA-2 missile regiments of three six train launcher battalions, with among the initial deployments near the town of Sverdiovsk. On 1 May 1960 the Sverdiovsk devices fired a total of 14 SA-2 missiles against a Lockheed U-2 thin air reconnaissance aircraft flown by Gary Powers. The SA-2 is a two stage missile with a large solid propellant jettisonable tandem booster stage fitted with four big clipped delta stabilising fins. Towards the mid-section for the missile are four clipped delta-shaped wings with an additional pair of tiny fixed fins within nose and a third in-line pair of somewhat bigger moving control fins at the tail. The SA-2A/B/C models may be distinguished by both sets of four, flush dielectric strip antennas ahead and behind the forward fins.
Specification
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