联盟 2.1b 弗雷加特-M | Kosmos (载荷待公布)

描述

Soyuz-2, GRAU index 14A14, is the collective designation for the 21st-century version of the Russian Soyuz rocket. In its basic form, it is a three-stage carrier rocket for placing payloads into low Earth orbit. The first-stage boosters and two core stages feature uprated engines with improved injection systems, compared to the previous versions of the Soyuz. Digital flight control and telemetry systems allow the rocket to be launched from a fixed launch platform, whereas the launch platforms for earlier Soyuz rockets had to be rotated as the rocket could not perform a roll to change its heading in flight.

联盟-2（GRAU 代号 14A14）是俄罗斯联盟号火箭 21 世纪版本的统称。其基本型为三级运载火箭，用于将有效载荷送入近地轨道。与早期联盟号相比，其一子级助推器和两个芯级采用了推力提升、喷射系统改进的发动机。数字飞行控制与遥测系统使该火箭可从固定发射平台发射，而早期联盟号火箭的发射平台必须旋转，因为火箭无法在飞行中滚转改变航向。