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HAVMANDEN submarines (1912-1914)


Photo



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


Ship 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.