Site 43, also known as SK-3 and SK-4, is a
launch complex
A launch pad is an above-ground facility from which a rocket-powered missile or space vehicle is vertically launched. The term ''launch pad'' can be used to describe just the central launch platform (mobile launcher platform), or the entire ...
at the
Plesetsk Cosmodrome
Plesetsk Cosmodrome ( rus, Космодром «Плесецк», r=Kosmodrom "Plesetsk", p=kəsmɐˈdrom plʲɪˈsʲet͡sk) is a Russian spaceport located in Mirny, Arkhangelsk Oblast, about 800 km north of Moscow and approximately 200&n ...
in
Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
. It consists of a two pads, Sites 43/3 and 43/4, and has been used by
R-7 derived rockets since the early 1960s.
The site was originally built for use by
R-7A Semyorka
The R-7A Semyorka, GRAU index 8K74, was an early Soviet intercontinental ballistic missile derived from the earlier R-7 Semyorka. It was the only member of the R-7 family of rockets to be deployed as an operational missile. The R-7A first flew ...
missiles. The first launch to use the complex was an R-7A test on 21 December 1965, from Site 43/3. The first launch from 43/4 followed on 25 July 1967.
After its retirement from service as a missile base, it was converted for use as a space launch complex. The first orbital launch was of a
Voskhod rocket with
Kosmos 313 on 3 December 1969.
Both pads were damaged by explosions in the 1980s. At 16:01 UTC on 18 March 1980, 48 people
were killed when a
Vostok-2M
The Vostok-2M (russian: Восток meaning ''"East"''), GRAU index 8A92M was an expendable carrier rocket used by the Soviet Union between 1964 and 1991. Ninety-three were launched, of which one failed. Another was destroyed before launch. It w ...
exploded during fueling operations at Pad 4. The disaster injured dozens more, while damaging the pad so severely that it was not used again until 1984. On 18 June 1987, a
Soyuz-U
The Soyuz-U launch vehicle was an improved version of the original Soyuz rocket. Soyuz-U was part of the R-7 family of rockets based on the R-7 Semyorka missile. Members of this rocket family were designed by the TsSKB design bureau and cons ...
rocket exploded at liftoff on Pad 3.
Both were rebuilt, and are in service as of 2009.
References
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Plesetsk Cosmodrome
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