CZ-2E[A] Space Launch Vehicle
The CZ-2E[A] represents an extension of the existing CZ-2E with stretched strap-on boosters and an enlarge payload shroud. The booster consists of a 2-stage core vehicle with four lengthened strap-on stages, all employing UDMH and nitrogen tetroxide. The strap-on stages each use two YF-20B engines, versus the single YF-20B engine used on the CZ-2E. Four YF20B engines are combined to make the YF-21B which powers the first stage of the core vehicle, which is largely unchanged from the CZ-2E first stage. The CZ-2E[A] second stage is also based on its CZ-2C counterpart with an uprated main engine (YF-22B) and larger propellant tanks carrying more than twice the load of the CZ-2C second stages. The CZ-2E[A] has a 12 metric ton LEO capacity.
The large low Earth orbit payload of this launch vehicle indicates that it is probably intended to support the Chinese piloted spaceflight effort, possibly to launch a small space station.
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