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FIGHTING SHIPS OF THE WORLD
NETHERLANDS
SUBMARINES
DOLFIJN submarines (1960-1966)


Photo



Tonjin 1979 Many thanks to Wolfgang Stöhr for additional information on this page.  

Ships


Name No Yard No Builder Laid down Launched Comm Fate
Dolfijn S808 279 Rotterdamse Droogdok Mij 30.12.1954 20.5.1959 16.12.1960 stricken 2.1985
Zeehond S809 280 Rotterdamse Droogdok Mij 30.12.1954 20.2.1960 16.3.1961 test hulk 1.1990
Potvis S804 782 Wilton-Fijenoord, Schiedam 17.9.1962 12.1.1965 2.11.1965 sold 7.1994
Tonijn S805 783 Wilton-Fijenoord, Schiedam 27.11.1962 14.6.1965 24.2.1966 museum boat 6.1994


Technical data


Displacement standard, t 
Displacement normal, t

S808, 809: 1520 / 1830

S804, 805: 1509 / 1831

Length, m

S808, 809: 78.3

S804, 805: 79.5

Breadth, m

7.90

Draught, m

5.00

No of shafts

2

Machinery

2 MAN 12-V6V 22/30 diesels / 2 electric motors

Power, h. p.

2800 / 4000

Max speed, kts

14.5 / 17

Fuel, t

diesel oil

Endurance, nm(kts) 
Armament

8 - 533 TT (4 bow, 4 stern, 20)

Electronic equipmentZW-06 radar, sonars, ECM suite, M8 CCS
Complement

64

Diving depth operational, m

300



Standard scale images


<i>Potvis </i>1970
Potvis 1970


Graphics


<i>Tonjin </i>1979 <i>Many thanks to Wolfgang Stöhr for additional information on this page.</i>  
Tonjin 1979 Many thanks to Wolfgang Stöhr for additional information on this page.  


Project history

These were the first submarines to be built postwar for the Royal Netherlands Navy, and were of a novel triple-hulled design. Three cylinders were arranged in a triangular shape within an outer casing. The upper cylinder accommodated the crew, control spaces and armament, while the shorter lower cylinders each housed an independent propulsion unit comprising a twelve cylinder diesel, an electric motor, and a 168-cell battery.

The order for the second pair was postponed while the possibility of nuclear propulsion was considered. It was reinstated in 1962, and Potvis and Tonjin were completed with a number of modifications which were subsequently extended to the earlier boats.

Modernizations

early 1970s, Zeehond: new sonar was installed.

1978-1979, Potvis, Tonjin: diesels were replaced by 2 SEMT-Pielstick PA4 (3100hp), power of electric motors was increased to 4400hp.

Naval service

No significant events.

Many thanks to Wolfgang Stöhr for additional information on this page.