The S-75 Dvina (Russian: С-75; NATO reporting name SA-2 Guideline) is a Soviet-designed, high-altitude air defence system, built around a surface-to-air missile with command guidance. Since its first deployment in 1957 it has become the most widely deployed air defence system in history.
Specifications
Weight: 2,300 kg (5,100 lb)
Length: 10,600 mm (420 in)
Diameter: 700 mm (28 in)
Warhead: Frag-HE
Warhead weight: 200 kg (440 lb)
Detonation mechanism: Command
Propellant: Solid-fuel booster and a storable liquid-fuel upper stage
Operational range: 45 km (28 mi)
Flight altitude: 25,000 m (82,000 ft)
Boost time: 5 s boost, then 20 s sustain
Speed: Mach 3.5
Guidance system: Radio control command guidance
Accuracy: 65 m
![](https://i.ytimg.com/vi/7ERWuPhTQmM/maxresdefault.jpg)