Soyuz-2-1v

Soyuz-2-1v

A small-scale model of the Soyuz-2-1v rocket exhibited at the Paris Air Show in 2011
Function	Light carrier rocket
Manufacturer	TsSKB Progress
Country of origin	Russia
Size
Height	44 metres (144 ft)
Diameter	3 metres (9.8 ft)
Mass	158,000 kilograms (348,000 lb)
Stages	Two
Capacity
Payload to 200km x 51.8° LEO	2,850 kilograms (6,280 lb)
Payload to 200km x 62.8° LEO	2,800 kilograms (6,200 lb)
Associated rockets
Family	R-7/Soyuz/2
Comparable	Long March 2C PSLV
Launch history
Status	Active
Launch sites	Baikonur Sites 1/5 & 31/6 Plesetsk Site 43
Total launches	2
Successes	1
Partial failures	1
First flight	28 December 2013
Last flight	5 December 2015

The Soyuz-2-1v (Russian: Союз 2.1в, Union 2.1v), GRAU index 14A15, known earlier in development as the Soyuz-1 (Russian: Союз 1, Union 1), is a Russian expendable carrier rocket. It was derived from the Soyuz-2.1b, and is a member of the R-7 family of rockets. It is built by TsSKB Progress, at Samara in the Russian Federation. Launches are conducted from existing facilities at the Plesetsk Cosmodrome in Northwest Russia, with pads also available at the Baikonur Cosmodrome in Kazakhstan, and new facilities at the in Eastern Russia.

The Soyuz-2-1v represents a major departure from earlier Soyuz rockets. Unlike the Soyuz-2-1b upon which it is based, it omits the four boosters used on all other R-7 vehicles. The first stage of the Soyuz-2-1v is a heavily modified derivative of the Soyuz-2 first stage, with a single-chamber NK-33 engine replacing the four-chamber RD-117 used on previous rockets along with structural modifications to the stage and lower tanking. Since the NK-33 is fixed, the RD-0110R engine is used to supply thrust vector control. It also supplies an extra 230.5 kilonewtons (51,800 lbf) of thrust and heats the pressurization gasses.