The Soyuz‑2.1v (Russian: Союз‑2.1в, lit. 'Union‑2.1c', GRAU index: 14A15) was a Russian expendable small-lift launch vehicle, developed as a derivative of the Soyuz-2 series. It is notable for omitting the four strap-on boosters common to other R-7 family rockets, making it the first R-7 variant without them.
The Soyuz‑2.1v (Russian: Союз‑2.1в, lit. 'Union‑2.1c', GRAU index: 14A15) was a Russian expendable small-lift launch vehicle, developed as a derivative of the Soyuz-2 series. It is notable for omitting the four strap-on boosters common to other R-7 family rockets, making it the first R-7 variant without them.
Source: Wikipedia "Soyuz 2.1v" · CC BY-SA 4.0
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