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Deep-diving nuclear-powered stations
Project 1851 Almaz
Project 18511

NATO: X-ray lass


Completed

3 units


Ships

Project 1851 Leningradskoe admiralteyskoe ob`edinenie 1 unit

Name
Yard
Laid Down
Launched
Commissioned
Note
AS-23
01429
09.1981
30.09.1983
30.12.1986
 

Project 18511 Leningradskoe admiralteyskoe ob`edinenie 2 units

Name
Yard
Laid Down
Launched
Commissioned
Note
AS-21
01430
26.12.1984
29.04.1991
28.12.1991
 
AS-35
01431
20.12.1989
29.09.1994
12.10.1995
 


General characteristics - Project 1851

Displacement (tons):
Surfaced:550
Submerged:1000
Dimensions (m):
Length:40
Beam:5,3
Draught:5
Speed (knots):
Surfaced:-
Submerged: 20
Diving depth (m):
Operational:-
Maximum:-
Endurance (days):-
Propulsion:1x10 MW nuclear reactor, 1 fixed pitch propeller in nozzle, 1 bow thruster
Armament:-
Spec. equipment:1 dive complex (1 pressure chamber)
Complement:6 (6 officers)

Schematics

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Modernizations

On AS-35 was added Gneys-41 sonar complex
Project 1851T project of modernization


Fleets

Northern Fleet: AS-21, AS-23, AS-35


Hull Numbers

AS-23: 219(1991)


Decommissioned

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Export

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