Berkut spacesuit

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Berkut Suit

The Berkut (Russian Беркут, meaning golden eagle) is a space suit model developed to be used for extravehicular activity for the Voskhod 2 mission aboard a Voskhod spacecraft on the first spacewalk. It was developed by NPP Zvezda in 1964-1965. It was a modified SK-1 suit. It was only used by the Voskhod 2 crew.


The suit had two pressurization settings, one at .27 atm and the other at .40 atm (nominal mode).[1] Life support was contained in back pack, had a large enough oxygen supply to last 45 minutes of activity. Movement within the suit was seriously restricted.

Name: Berkut Spacesuit

Derived from: SK-1 spacesuit

Manufacturer: NPP Zvezda

Missions: Voskhod 2

Function: Intra-vehicular activity (IVA) and orbital Extra-vehicular activity (EVA)[1]

Operating Pressure: 5.8 psi (400 hPa)[1]

Suit Weight: 44 lb (20 kg)[1]

Backpack Weight: 47 lb (21.5 kg)[1]

Total Weight: 91 lb (41.5 kg)[1]

Primary Life Support: 45 minutes[1]


  1. ^ a b c d e f g Isaac Abramov; Ingemar Skoog (2003). Russian Spacesuits. Chichester, UK: Praxis Publishing Ltd. ISBN 1-85233-732-X. 

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