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U31 submarines (1914 - 1915)


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U35 1916

Ships


Name No Yard No Builder Laid down Launched Comp Fate
U31   191 Germaniawerft, Kiel 1912 7.1.1914 9.1914 lost 1.1915
U32   192 Germaniawerft, Kiel 1912 28.1.1914 9.1914 Austrian flag 1916 (U37), sunk 8.5.1918
U33   193 Germaniawerft, Kiel 1912 19.5.1914 9.1914 Austrian flag 1915 (U33), to United Kingdom 1.1919
U34   194 Germaniawerft, Kiel 1912 9.5.1914 10.1914 Austrian flag 1915 (U34), lost 10.1918
U35   195 Germaniawerft, Kiel 1912 18.4.1914 11.1914 Austrian flag 1915 (U35), to United Kingdom 11.1918
U36   196 Germaniawerft, Kiel 1912 6.6.1914 11.1914 sunk 24.7.1915
U37   197 Germaniawerft, Kiel 1912 25.8.1914 12.1914 sunk 1.4.1915
U38   198 Germaniawerft, Kiel 1912 9.9.1914 12.1914 Austrian flag 1915 (U38), to France 2.1919
U39   199 Germaniawerft, Kiel 1912 26.9.1914 1.1915 Austrian flag 1915 (U39), to France 3.1919
U40   200 Germaniawerft, Kiel 1912 22.10.1914 2.1915 sunk 23.6.1915
U41   201 Germaniawerft, Kiel 1912 10.10.1914 2.1915 sunk 24.9.1915


Technical data


Displacement standard, t

 

Displacement normal, t685 / 878
Length, m

64.7

Breadth, m

6.32

Draught, m

3.56

No of shafts

2

Machinery

2 Germania diesels / 2 SSW electric motors

Power, h. p.

1850 / 1200

Max speed, kts

16.4 / 9.7

Fuel, t

diesel oil 110

Endurance, nm(kts)8790(8) / 80(5)
Armament

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

Complement

35

Diving depth operational, m50


Graphics


<i>U35 </i>1916
U35 1916


Project history

Medium coastal submarines. Double-hulled.

Modernizations

late 1914, U35: - 1 x 1 - 7.9/79; + 1 x 1 - 75/15 UK L/18

1915, U32, 36, 37: - 1 x 1 - 7.9/79; + 2 x 1 - 88/27 TK L/30 C/08

1915, U33-35, 38-41: - 1 x 1 - 7.9/79; + 1 x 1 - 88/27 TK L/30 C/08

1916 - 1917, U33-35, 38, 39: - 1 x 1 - 88/27; + 1 x 1 - 105/43 TK L/45 C/16

1917, U32: - 2 x 1 - 88/27; + 1 x 1 - 105/42 Utof L/45 C/16

Naval service

U31 was lost in January, 1915 in the North Sea by unknown cause. Austrian U37 (ex-U32) was sunk by deep charges from British sloop Wallflower off Malta. Austrian U34 (ex-U34) was lost in October 1918 in Mediterranean by unknown cause. U36 was sunk by gunfire of British decoy ship Prince Charles 24.7.1915 off Rona Island. U37 was mined in the English Channel 1.4.1915. Austrian U39 (ex-U39) was badly damaged by aircraft off El Ferrol 18.5.1918, interned and later transferred to France. U40 was sunk by British pair of submarine C24 and decoy vessel Taranaki in the North Sea 23.6.1915. U41 was sunk by gunfire of British decoy vessel Wyandra 24.9.1915 in the English Channel.