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FIGHTING SHIPS OF THE WORLD
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SUBMARINES
THOMSON submarines (1944/1961-1962)


Photo



Simpson 1979

Ships


Name No Yard No Builder Laid down Launched Comm Fate
Simpson (ex-Spot) 21   Mare Island N Yd, Vallejo, USA 8.1943 19.5.1944 8.1944 // 23.1.1961 stricken 1982
Thomson (ex-Springer) 22   Mare Island N Yd, Vallejo, USA 10.1943 3.8.1944 10.1944 // 12.1.1962 for spares 9.1972


Technical data


Displacement standard, t 
Displacement normal, t

1845 / 2415

Length, m

92.2 wl 95.0 oa

Breadth, m

8.31

Draught, m

4.65

No of shafts

2

Machinery

4 Fairbanks-Morse diesel-generators / 4 electric motors

Power, h. p.

5400 / 2740

Max speed, kts

20.25 / 8.75

Fuel, t

diesel oil 378 - 472

Endurance, nm(kts)11000 (10) / 96 (2)
Armament

1 x 1 - 127/25 Mk 40, 1 x 1 - 40/60 Mk 3, 10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)

Electronic equipment

SS, ST, SV radars, WFA, JT sonars, APR-1 ECM suite

Complement

60

Diving depth operational, m

120



Standard scale images


<i>Thomson</i> 1963
Thomson 1963
<i>Simpson</i> 1980
Simpson 1980


Graphics


<i>Simpson</i> 1979
Simpson 1979


Project history

Former USN Balao class submarines.

Modernizations

1966, Thomson; 1977, Simpson: CT was streamlined; - 1 x 1 - 40/60

Naval service

No significant events.