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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.
Specifications
The suit had two pressurization settings, one at .27 atm and the other at .40 atm (nominal mode). 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)
Operating Pressure: 400 hPa (5.8 psi)
Suit Weight: 20 kg (44 lb)
Backpack Weight: 21 kg (46 lb)
Total Weight: 41 kg (90 lb)
Primary Life Support: 45 minutes