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fighting ships of the world

KAISERLICHE MARINE (GERMANY)

SUBMARINES

UB II type coastal submarines (1915-1916)

UB30 1917

Name Yard No Builder Laid down Launched Comp Fate
UB18 248 Blohm & Voss, Hamburg 1915 21/8/1915 12/1915 sunk 9/12/1917
UB19 249 Blohm & Voss, Hamburg 1915 2/9/1915 12/1915 sunk 30/11/1916
UB20 250 Blohm & Voss, Hamburg 1915 26/9/1915 2/1916 sunk 29/7/1917
UB21 251 Blohm & Voss, Hamburg 1915 26/9/1915 2/1916 to United Kingdom 11/1918
UB22 252 Blohm & Voss, Hamburg 1915 9/10/1915 3/1916 sunk 19/1/1918
UB23 253 Blohm & Voss, Hamburg 1915 9/10/1915 3/1916 interned 29/7/1917, to France 2/1919
UB24 238 Weser, Bremen 1915 18/10/1915 11/1915 to France 11/1918
UB25 239 Weser, Bremen 1915 22/11/1915 12/1915 to United Kingdom 11/1918
UB26 240 Weser, Bremen 1915 14/12/1915 1/1916 sunk 5/4/1916 (later to France as Roland Morillot)
UB27 241 Weser, Bremen 1915 10/2/1916 2/1916 sunk 29/7/1917
UB28 242 Weser, Bremen 1915 20/12/1915 12/1915 to United Kingdom 11/1918
UB29 243 Weser, Bremen 1915 31/12/1915 1/1916 sunk 13/12/1916
UB30 254 Blohm & Voss, Hamburg 1915 16/11/1915 3/1916 wrecked 23/2/1917, interned by Netherlands, returned 8/1917, sunk 13/8/1918
UB31 255 Blohm & Voss, Hamburg 1915 16/11/1915 3/1916 sunk 2/5/1918
UB32 256 Blohm & Voss, Hamburg 1915 4/12/1915 4/1916 sunk 22/9/1917
UB33 257 Blohm & Voss, Hamburg 1915 4/12/1915 4/1916 sunk 11/4/1918
UB34 258 Blohm & Voss, Hamburg 1915 28/12/1915 6/1916 to United Kingdom 11/1918
UB35 259 Blohm & Voss, Hamburg 1915 28/12/1915 6/1916 sunk 26/1/1918
UB36 260 Blohm & Voss, Hamburg 1915 15/1/1916 5/1916 sunk 21/5/1917
UB37 261 Blohm & Voss, Hamburg 1915 28/12/1915 5/1916 sunk 14/1/1917
UB38 262 Blohm & Voss, Hamburg 1915 1/4/1916 7/1916 sunk 8/2/1918
UB39 263 Blohm & Voss, Hamburg 1915 29/12/1915 4/1916 sunk 15/5/1917
UB40 264 Blohm & Voss, Hamburg 1915 25/4/1916 8/1916 scuttled 5/10/1918
UB41 265 Blohm & Voss, Hamburg 1915 6/5/1916 8/1916 sunk 5/10/1917
UB42 244 Weser, Bremen 1915 4/3/1916 3/1916 Austrian flag 1916 (U42), to United Kingdom 11/1918
UB43 245 Weser, Bremen 1915 8/4/1916 4/1916 Austrian flag 1916 (U43), to Austria-Hungary 7/1917, to Italy 11/1918
UB44 246 Weser, Bremen 1915 20/4/1916 5/1916 Austrian flag 1916 (U44), sunk 4/8/1916
UB45 247 Weser, Bremen 1915 12/5/1916 5/1916 Austrian flag 1916 (U45), sunk 6/11/1916
UB46 248 Weser, Bremen 1915 31/5/1916 6/1916 Austrian flag 1916 (U46), sunk 7/12/1916
UB47 249 Weser, Bremen 1915 17/6/1916 7/1916 Austrian flag 1916 (U47), to Austria-Hungary 7/1917, to France 1920

  

Displacement standard, t

 

Displacement normal, t

UB18 - 23, 36, 38 - 41: 263 / 292

UB24 - 29: 265 / 291

UB30 - 35, 37: 274 / 303

UB42: 279 / 305

UB43 - 47: 272 / 305

Length, m

UB18 - 29, 36, 38 - 41: 36.1

UB30 - 35, 37, 42 - 47: 36.9

Breadth, m

UB18 - 29, 36, 38 - 41: 4.36

UB30 - 35, 37, 42 - 47: 4.37

Draught, m

UB18 - 23, 36, 38 - 41: 3.70

UB24 - 29: 3.66

UB30 - 35, 37: 3.75

UB43 - 47: 3.68

No of shafts

2

Machinery

UB18, 19, 26, 29, 42 - 47: Daimler diesels / SSW electric motors

UB20 - 23, 36, 38 - 41: Körting diesels / SSW electric motors

UB24, 25, 27, 28, 30 - 35, 37: Benz diesels / SSW electric motors

Power, h. p.

UB18 - 23, 26, 29, 36, 38 - 47: 284 / 280

UN24, 25, 27, 28, 30 - 35, 37: 270/280

Max speed, kts

UB18 - 23, 36, 38 - 41: 9.2 / 5.8

UB24 - 29: 8.9 / 5.7

UB30 - 35, 37: 9.1 / 5.7

UB42 - 47: 8.8 / 6.2

Fuel, t

UB18 - 41: diesel oil 28

UB42 - 47: diesel oil 27

Endurance, nm(kts)

UB18, 19: 6650(5) / 45(5)

UB20 - 23, 36, 38 - 41: 6450(5) / 45(4)

UB24 - 29: 7200(5) / 45(4)

UB30 - 35, 37: 7030(5) / 45(4)

UB42 - 47: 6940(5) / 45(4)

Armament

UB18 - 29: 1 x 1 - 50/37 SK L/40 C/92, 2 - 500 TT (bow, 4)

UB30 - 47: 1 x 1 - 88/27 TK L/30 C/08, 2 - 500 TT (bow, 4)

Complement

23

Diving depth operational, m

50

Ship project history: UB II type coastal submarines of single hull construction with saddle tanks. They had a diving time which varied from 45 seconds in the Blohm & Voss boats to 30 seconds in the UB24-UB29 group.

Modernizations: 1916, all survived: carried 6 torpedoes.

1916, UB21, 22, 27, 34, 35, 41: + 2 - 500 TT (stern, 2), bow TTs were converted for minelaying (14 P mines).

1916-1917, UB18, 21-25, 27: - 1 x 1 - 50/37; + 1 x 1 - 88/27 TK L/30 C/08

1917, UB24: - 1 x 1 - 88/27; + 1 x 1 - 50/37 SK L/40 C/92

Naval service: UB43 and UB41, sold to Austria-Hungary in 1917, were commissioned as the Austrian U43 and U47, ceded to Italy after the war and scrapped. Of those lost in action UB26 (5/4/1916 she wrecked on harbour obstructions at Le Havre) was raised, became the French Roland Morillot, and was scrapped in 1931. UB23 was interned 29/7/1917 at La Coruña in Spain after she was damaged by depth charges from British patrol boat P60, but also became a French reparation and was scrapped. UB24, UB25, UB28 and UB42 became British war reparations and were scrapped. UB40 was scuttled 5/10/1918 at Ostend during the German retreat from Flanders. UB18 was rammed by British trawler Ben Lawers 9/12/1917 in the English Channel. UB19 was sunk by British decoy vessel Penshurst 30/11/1916 in the English Channel. UB20 was mined 29/7/1917 off Flanders coast. UB22 was mined 19/1/1918 in the North Sea. UB25 sank 19/3/1917 at Kiel after collision with destroyer V26 but salvaged 22/3/1917 and later recommissioned. UB27 was sunk by ramming and depth charges of British sloop Halcyon 29/7/1917 in the North Sea. UB29 was sunk 13/12/1916 in the English Channel by drifting mines and British destroyer Landrail. UB30 wrecked 23/2/1917 at Walcheren Island, salvaged by Dutch, interned but returned to Germany 8/8/1917; finally she was sunk 13/8/1918 in the North Sea by British trawler John Gillman. UB31 was sunk 2/5/1918 in the English Channel by British trawlers Lord Leitrim, Loyal Friend and Ocean Roamer. UB32 was bombed by British aircraft 22/9/1917 in the English Channel. UB33 was mined 11/4/1918 in the English Channel. UB35 was sunk by British destroyer Leven and patrol boats 26/1/1918 in the English Channel. UB36 was rammed by French s/s Molière 21/5/1917 in the English Channel. UB37 was sunk by British decoy vessel Penshurst 14/1/1917 in the English Channel. UB38 was mined 8/2/1918 in the English Channel. UB39 was mined 15/5/1917 in the English Channel. UB41 was stricken by German mine 5/10/1917 in the North Sea. UB44 was sunk by British patrol vessels Quarrie, Knowe and Garrigill 4/8/1916 in the Ionic Sea. UB45 was mined 6/11/1916 in the Black Sea. UB46 was mined 7/12/1916 in the Black Sea.

UB40 1916

Ivan Gogin, 2014