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HAVMANDEN submarines (1912-1914)


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Havfruen and Najaden 1914

Ships


Name No Yard No Builder Laid down Launched Comp Fate
Havmanden H2, 1913- 3   Whitehead, Fiume, Austria-Hungary   23.12.1911 8.1912 stricken 4.1928
Havfruen H1, 1913- 2   Orlogsværftets, København   31.8.1912 3.1913 stricken 5.1932
Thetis T1, 1913- 4   Whitehead, Fiume, Austria-Hungary   19.6.1912 11.1912 stricken 4.1928
2den April (ex-Triton) 5   Whitehead, Fiume, Austria-Hungary   31.3.1913 9.1913 stricken 1.1929
Najaden 6   Orlogsværftets, København   9.7.1913 12.1913 stricken 9.1931
Nymfen 7   Orlogsværftets, København   10.2.1914 7.1914 stricken 3.1932


Technical data


Displacement standard, t 
Displacement normal, t

164 / 204

Length, m

38.8

Breadth, m

3.60

Draught, m

2.30

No of shafts

1

Machinery

1 6-cyl 2-stroke Fiat or MAN diesel / 2 electric motors

Power, h. p.

Havmanden, Thetis, 2den April: 430 / 270

Havfruen, Najaden, Nymfen: 450 / 275

Max speed, kts

13 / 10

Fuel, t

diesel oil

Endurance, nm(kts)1400 (10) / 23 (8)
Armament

2 - 450 TT (bow, 2)

Complement

10

Diving depth operational, m 


Standard scale images


<i>Havfruen</i> 1914
Havfruen 1914


Graphics


<i>Havfruen</i> and <i>Najaden</i> 1914
Havfruen and Najaden 1914


Project history

Design was developed by Whitehead. Submarines have appeared successful, and later under their drawings similar boats for Austrian-Hungarian Navy were built.

Modernizations

1917, all: + 1 x 1 - 8.80

Naval service

No significant events.