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Previous page: Design of Voskhod spacecraft

Voskhod

Voskhod launch vehicle.

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An initial concept of the three-seat Vostok formulated in February 1964 called for keeping the mass of the spacecraft unchanged, however the resulting Voskhod gained weight, reaching 5.7 tons. (466)

To launch the heavier payload, its rocket was equipped with a more powerful upper stage, which was borrowed from the Molniya booster. It enabled to add an extra ton of payload.

The modified rocket received a designation 11A57. (84) A similar vehicle -- 11A59 -- was also used to launch Zenit reconnaissance satellites.

A total of 299 vehicles under a designation 11A57 were eventually launched, including 14 that failed. However some of the third stages on 11A57 were equipped with the older RD-0108 engine, while the majority had RD-0110.

 

Next chapter: Voskhod flight program

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Page author: Anatoly Zak; Last update: January 18, 2017

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stage3

To carry a heavier Voskhod spacecraft, its launch vehicle was upgraded with a more powerful third stage.


Fueling

Fueling of the 11A57 (Voskhod) rocket before launch. Credit: RKK Energia


launch

Launch of Voskhod-2 spacecraft.


Lift off

launch

 

to Vostochny