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U23 submarines (1913 - 1914)


Photo



U24 1914

Ships


Name No Yard No Builder Laid down Launched Comp Fate
U23   177 Germaniawerft, Kiel 1911 12.4.1913 9.1913 sunk 20.7.1915
U24   178 Germaniawerft, Kiel 1911 24.5.1913 12.1913 to United Kingdom 11.1918
U25   179 Germaniawerft, Kiel 1911 12.7.1913 5.1914 to France 2.1919
U26   180 Germaniawerft, Kiel 1911 16.10.1913 5.1914 sunk 9.1915


Technical data


Displacement standard, t

 

Displacement normal, t669 / 864
Length, m

64.7

Breadth, m

6.32

Draught, m

3.45

No of shafts

2

Machinery

2 Germania diesels / 2 SSW electric motors

Power, h. p.

1800 / 1200

Max speed, kts

16.7 / 10.3

Fuel, t

diesel oil 85

Endurance, nm(kts)7620(8) / 85(5)
Armament

1 x 1 - 7.9/79, 4 - 500 TT (2 bow, 2 stern, 6)

Complement

35

Diving depth operational, m50


Graphics


<i>U24 </i>1914
U24 1914


Project history

Medium coastal submarines. Double-hulled.

Modernizations 10.

1914, U25, 1915, U23, 24, 26: - 1 x 1 - 7.9/79; + 1 x 1 - 88/27 TK L/30 C/08

1916, U25: + 1 x 1 - 88/27 TK L/30 C/08

1917, U25: - 1 x 1 - 88/27

late 1918, U24, 25: - 1 x 1 - 88/27; + 1 x 1 - 105/43 TK L/45 C/16

Naval service

U23 was sunk by British submarine C27 and decoy ship Princess Marie José 20.7.1915 in the North Sea. U26 was lost on mines in early September, 1915 in the Baltic Sea.