Manned submersible "Sever-1"

 In 1960 was delivered one submersible "Sever-1" (design GG-57). "Sever-1" operated together with support vessel "Tunets" ("Pioner" type trawler) and was in operation until the end of the 70th years.
Purpose of the vessel:     - search and recording of fishery objects, and prediction and estimation of their stock
    - underwater filming
Length (m) 3.35 (3.8)
Breadth (m) 1.1
Height (m) -
Displacement (tonnes) -
Weight (tonnes) 2.4
Crew 1
Operating depth (m) 600
Submerged work time (hr)
Power supply
Number of units 1
Years of building 1960
Built by Baltiyskiy zavod, USSR

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