Base of first stage, with NK-33 & RD-0110R engines
The Soyuz‑2.1v represents a major departure from earlier Soyuz rockets. Unlike the Soyuz‑2 upon which it is based, it does away with the four boosters used on all other R-7 vehicles. The single first stage core stage is built around the powerful single-chamberNK-33 engine replacing the four-chamber RD-108 along with structural modifications. Since the NK-33 is fixed, the stage is also equipped with complex engine RD-0110R, built of four vernier engines (with four chambers and four nozzles) for thrust vector control. The RD-0110R engines add 230.5 kN (51,800 lbf) thrust and heats the pressurization gases.[6]
The NK-33 engines were built in the 1970s for the cancelled Soviet N1 Moon rocket. These surplus engines offer increased performance over the RD-108; however, only a limited number of engines are available. Once the supply is exhausted, the NK-33 will be replaced by the RD-193. In April 2013, it was announced that the RD-193 engine had completed testing. The RD-193 is a lighter and shorter engine based on the Angara's RD-191, which is itself a derivative of the Zenit's RD-170.[7]
The second stage of the Soyuz‑2.1v is the same as the third stage of the Soyuz‑2.1b;[8] powered by an RD-0124 engine. Most missions will use a Volga upper stage to transfer the payload from an initial parking orbit to its final destination. The Volga is derived from the propulsion system of the Yantarreconnaissance satellite, and was developed as a lighter and cheaper alternative to the Fregat that is used on many Soyuz‑2 missions.
The Soyuz‑2.1v was designed to serve lighter payloads with a payload capacity of 2,850 kg (6,280 lb) to a 200 km (120 mi) circular low Earth orbit with an inclination of 51.8° from Baikonur, and 2,800 kg (6,200 lb) to a 200 kilometre orbit at 62.8° from Plesetsk.[5][9]
^The letter в (vee) is transliterated as "v," but it is also the third letter of the Cyrillic alphabet. Since this rocket is the third in the Soyuz-2 family, a more literal English translation is "c," the third letter of the Latin alphabet.
This Template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future
Symbol † indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)
