|Function||Medium carrier rocket|
|Country of origin||Russia|
|Height||44 metres (144 ft)|
|Diameter||3 metres (9.8 ft)|
|Mass||158,000 kilograms (350,000 lb)|
200km x 51.8° LEO
|2,850 kilograms (6,300 lb)|
200km x 62.8° LEO
|2,800 kilograms (6,200 lb)|
|Launch sites||Baikonur Sites 1/5 & 31/6
Plesetsk Site 43
The Soyuz-1 (Russian: Союз 1, Union 1), also known as the Soyuz-2.1v (Russian: Союз 2.1в, Union 2.1v)  is a proposed Russian expendable carrier rocket. It was derived from the Soyuz-2.1b, and is a member of the R-7 family of rockets. It will be built by TsSKB Progress, at Samara in the Russian Federation. Launches will be conducted from existing facilities at the Plesetsk Cosmodrome in Northwest Russia and the Baikonur Cosmodrome in Kazakhstan, and new facilities at the Vostochny Cosmodrome in Eastern Russia.
It consists of a Soyuz-2.1b, with the booster rockets omitted, and the core stage re-engined with the NK-33 engine, originally built for the N1 programme. The second stage is the same as the second stage of the Soyuz-2.1b. In April 2013, it was announced that the RD-193 engine had completed testing. This version is lighter and shorter than the Angara's RD-191 and is designed to replace the NK-33 when its inventory is exhausted.
It is designed as a medium-class carrier rocket, and has a payload capacity of 2,850 kilograms (6,300 lb) to a 200-kilometre (120 mi) circular low Earth orbit with an inclination of 56.8° from Baikonur, and 2,800 kilograms (6,200 lb) to a 200 kilometre orbit at 62.8° from Plesetsk.
Photogallery from Paris Air Show 2011 
- "Rus/Souyz-2 launch vehicle (in Russian)".
- "“Soyuz-1” middle class launch vehicle". Samara Space Centre. Retrieved 2009-04-11.
- "Губернатор Самарской области Владимир Артяков: «Мы гордимся тем, что в нашей области есть такое предприятие, как ЦСКБ-Прогресс»" (in Russian). Roskosmos. 2009-04-10. Retrieved 2009-04-11.[dead link]
- "New engine for light rocket "Soyuz" prepare for mass production at the end of the year" (in Russian). Новости космонавтики. Retrieved 8 April 2013.