Plesetsk Cosmodrome Site 43

"LC-43" redirects here. For the pad at Cape Canaveral, see Cape Canaveral Air Force Station Launch Complex 43.

Site 43

Launch site	Plesetsk Cosmodrome
Location
Short name	Pu-43
Operator	Russian Space Forces
Total launches	497
Launch pad(s)	Two
Site 43/3 launch history
Status	Active
Launches	214
First launch	21 December 1965
Last launch	2 November 2010
Associated rockets	R-7A Semyorka Vostok-2M Voskhod Molniya-M Soyuz-U Soyuz-2
Site 43/4 launch history
Status	Active
Launches	283
First launch	25 July 1967
Last launch	25 December 2014
Associated rockets	R-7A Semyorka Vostok-2M Voskhod Molniya-M Soyuz-U Soyuz-M Soyuz-2 Soyuz-2-1v

Site 43, also known as SK-3 and SK-4, is a launch complex at the Plesetsk Cosmodrome in Russia. 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 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 GMT on 18 March 1980, 48 were killed when a Vostok-2M exploded during fuelling operations at Pad 4, ahead of the launch of a Tselina-D satellite. On 18 June 1987, a Soyuz-U rocket exploded at liftoff on Pad 3. Both were rebuilt, and are in service as of 2009.