Alfa Class Submarine

Project 705 (Lira)

Manufacturer:

Sudomekh Shipyard, Leningrad and Severodvinsk Shipyard

Role:

Nuclear Powered Attack Submarine

Year Adopted:

1957 - Requirement Issued
1965 - Construction Began
1972 - First Example Completed
1977 - First Series Production Boat Completed

7 examples
(1 testbed and 6 series production)

2,800 Tons Surfaced
3,680 Tons Submerged

Operational Status:

Russia - No longer in active service.

Armament:

6x 533mm (21 inch) torpedo tubes, in ship's bow
2x 533mm (21 inch) torpedo tubes*

*each with 406mm (16 inch) liners 

1)  18 x 533mm torpedoes maximum

2)  8x    533mm anti-ship/anti-submarine torpedoes
     2x    533mm 15 kiloton anti-ship torpedoes
     10x  406mm anti-submarine torpedoes
     2x    SS-N-15 (15 kiloton) anti-submarine missiles

3)  Can also deploy 24 AMD-1000 ground mines

Sensor Suite:

1x 'Snoop Tray' surface search radar
1x 'Park Lamp' direction finding antennae
1x Unidentified third generation ESM system
1x Low frequency bow sonar
1x Torpedo fire control sonar (medium frequency)
1x underwater telephone

Engine:

2 x BM-40A 155 Mw liquid metal cooled reactors powering two steam turbines that drive a single seven bladed propeller. (45,000 horsepower)*

*two of the production boats used OK-550 liquid metal cooled reactors instead.  The power output of these reactors was identical to the BM-40A.

Crew:

31 - 45 Officers

Length:

265 feet, 9 inches
(81 meters)

Draught:

26 feet, 3 inches
(8.0 meters)

Beam:

31 feet, 2 inches
(9.5 meters)

Maximum Speed:

20 knots surfaced
45 knots submerged

Operating Depth
          Operational:
          Maximum:

 
700 meters (2,297 feet)
1160 meters (3,805 feet)