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fighting ships of the world

UNITED STATES NAVY (UNITED STATES OF AMERICA)

SUBMARINES

SKATE nuclear powered submarines (1957 - 1959)

Skate 1957

Skate 1963

No Name Yard No Builder Laid down Launched Comm Fate
SSN578 Skate 147 Electric Boat, Groton 21/7/1955 16/5/1957 23/12/1957 stricken 10/1986
SSN579 Swordfish   Portsmouth N Yd, Kittery 25/1/1956 27/8/1957 15/9/1958 stricken 1/1990
SSN583 Sargo   Mare Island N Yd, Vallejo 21/2/1956 10/10/1957 1/10/1958 stricken 4/1988
SSN584 Seadragon 1041 Portsmouth N Yd, Kittery 20/6/1956 16/8/1958 5/12/1959 stricken 4/1986

 

Displacement standard, t

 

Displacement normal, t

2550 / 2848

Length, m

81.6

Breadth, m

7.60

Draught, m

6.30

No of shafts

2

Machinery

SSN578, 583: 2 sets Westinghouse geared steam turbines, 1 Westinghouse S3W nuclear reactor

SSN579, 584: 2 sets Westinghouse geared steam turbines, 1 Westinghouse S4W nuclear reactor

Power, h. p.

6600

Max speed, kts

15.5 / 20

Fuel, t

nuclear

Endurance, nm (kts) practically unlimited

Armament

8 - 533 TT (6 Mk 56 bow, 2 Mk 57 stern, 22)

Sensors

BPS-12 radar, BQS-4, BQR-2 sonars, BLR-1 ECM suite

Complement

84

Diving depth operational, m

210

   

Ship project history: These four attack boats were the first US approach to a 'production' nuclear submarine, considerably smaller than Nautilus, with about half her power; they corresponded approximately to the earlier Tang class in dimensions, although they were somewhat heavier. Production was abandoned in favour of the much faster Skipjack class, the transition occurring in die FY56 programme.

Modernizations: 1960s, all: - BLR-1 ECM suite; + WLR-1 ECM suite

1980s, Swordfish, Sargo: - BQS-4 sonar; + SQS-49 sonar

Naval service: No significant events.

Skate 1980

Ivan Gogin, 2015