Sierra Class / Project 945
Nuclear Powered Attack Submarine

Sierra I

Sierra II
Russian Designation: Project 945 Project 945A

Manufacturer:

Uncertain at Present

Role:

Attack Submarine

Attack Submarine

Year Adopted:

1984

1990
Number in Class:

2 boats

 2 boats
Displacement:

6,300 Tons Surfaced
8,300 Tons Submerged

6,470 Tons Surfaced
8,500 Tons Submerged

Operational Status:

Russia - In active service with Russian Navy

Armament
     Sierra I:

 
     Sierra II:

 
4x 533mm (21 inch) torpedo tubes, in ship's bow
2x 650mm (25.6 inch) torpedo tubes, in ship's bow

8x 650mm (25.6 inch) torpedo tubes

Basic Weapons Load
     Sierra I:

     Sierra II:

   
40x torpedoes or SS-N-16 ASW missiles

40x torpedoes or SS-N-16 ASW missiles

Sensor Suite:

Uncertain at Present

Engines
     Sierra I:

  
     Sierra II:

  
1 x OK-650A 190Mw pressurized water reactor w/ one shaft
2 x Electrically powered 750 hp creep motors.

1 x OK-650B 190Mw pressurized water reactor w/ one shaft
2 x Electrically powered 750 hp creep motors.

Crew:

59 Officers and Sailors

61 Officers and Sailors

Length:

351 feet
(107 meters)

362 feet, 6 inches
(110.5 meters)

Draught:

28 feet, 11 inches
(8.8 meters)

30 feet, 9 inches
(9.4 meters)

Beam:

54 feet, 2 inches
(16.5 meters)

Maximum Speed:

12 knots surfaced
33.5 knots submerged

Cruising Endurance: 90 days 100 days

Operating Depth
     Operational:
     Maximum:

 
Uncertain at Present
1804 feet (550 meters)


Uncertain at Present
1970 feet (600 meters)

  

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