NAVYPEDIA

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UC31 1918

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
UC16		266	Blohm & Voss, Hamburg	1915	1.2.1916	6.1916	sunk 23.10.1917
UC17		267	Blohm & Voss, Hamburg	1915	19.2.1916	7.1916	to United Kingdom 11.1918
UC18		268	Blohm & Voss, Hamburg	1915	4.3.1916	8.1916	sunk 19.2.1917
UC19		269	Blohm & Voss, Hamburg	1915	15.3.1916	8.1916	sunk 6.12.1916
UC20		270	Blohm & Voss, Hamburg	1915	1.4.1916	9.1916	Austrian flag 1916 (U60), to United Kingdom 1.1919
UC21		271	Blohm & Voss, Hamburg	1915	1.4.1916	9.1916	lost 9-10/1917
UC22		272	Blohm & Voss, Hamburg	1915	1.2.1916	7.1916	Austrian flag 1916 (U62), to France 2.1919
UC23		273	Blohm & Voss, Hamburg	1915	19.2.1916	7.1916	Austrian flag 1916-10/1917 (U63), to France 11.1918
UC24		274	Blohm & Voss, Hamburg	1915	4.3.1916	8.1916	Austrian flag 1917 (U88), sunk 24.5.1917
UC25		64	Vulcan, Hamburg	1915	10.6.1916	6.1916	Austrian flag 1917 (U89), scuttled 28.10.1918
UC26		65	Vulcan, Hamburg	1915	22.6.1916	7.1916	sunk 9.5.1917
UC27		66	Vulcan, Hamburg	1915	28.6.1916	7.1916	Austrian flag 1917 (U90), to France 2.1919
UC28		67	Vulcan, Hamburg	1915	8.7.1916	8.1916	to France 2.1919
UC29		68	Vulcan, Hamburg	1915	15.7.1916	8.1916	sunk 7.6.1917
UC30		69	Vulcan, Hamburg	1915	27.7.1916	8.1916	sunk 19.4.1917
UC31		70	Vulcan, Hamburg	1915	7.8.1916	9.1916	to United Kingdom 11.1918
UC32		71	Vulcan, Hamburg	1915	12.8.1916	9.1916	internal explosion 23.2.1917
UC33		72	Vulcan, Hamburg	1915	26.8.1916	9.1916	sunk 26.9.1917
UC34		275	Blohm & Voss, Hamburg	1915	6.5.1916	9.1916	Austrian flag 1916 (U74), scuttled 30.10.1918
UC35		276	Blohm & Voss, Hamburg	1915	6.5.1916	10.1916	Austrian flag 1916 (U75), sunk 16.5.1918
UC36		277	Blohm & Voss, Hamburg	1915	25.6.1916	11.1916	sunk 18.5.1917
UC37		278	Blohm & Voss, Hamburg	1915	5.6.1916	10.1916	Austrian flag 1916 (U77), to United Kingdom 11.1918
UC38		279	Blohm & Voss, Hamburg	1915	5.6.1916	10.1916	Austrian flag 1916 (U78), sunk 14.12.1917
UC39		280	Blohm & Voss, Hamburg	1915	25.6.1916	10.1916	sunk 8.2.1917
UC40		73	Vulcan, Hamburg	1915	5.9.1916	10.1916	lost on transfer to United Kingdom 21.1.1919
UC41		74	Vulcan, Hamburg	1915	13.9.1916	10.1916	sunk 21.8.1917
UC42		75	Vulcan, Hamburg	1915	21.9.1916	11.1916	sunk 10.9.1917
UC43		76	Vulcan, Hamburg	1915	5.10.1916	10.1916	sunk 10.3.1917
UC44		77	Vulcan, Hamburg	1915	10.10.1916	11.1916	sunk 5.8.1917
UC45		78	Vulcan, Hamburg	1915	20.10.1916	11.1916	to United Kingdom 11.1918
UC46		256	Weser, Bremen	1915	15.7.1916	9.1916	sunk 8.2.1917
UC47		257	Weser, Bremen	1915	30.8.1916	10.1916	sunk 18.11.1917
UC48		258	Weser, Bremen	1915	27.9.1916	11.1916	interned 20.3.1918, lost on transfer to United Kingdom 15.3.1919
UC49		265	Germaniawerft, Kiel	1916	7.11.1916	12.1916	sunk 8.8.1918
UC50		266	Germaniawerft, Kiel	1916	23.11.1916	12.1916	sunk 4.2.1918
UC51		267	Germaniawerft, Kiel	1916	5.12.1916	1.1917	sunk 17.11.1917
UC52		268	Germaniawerft, Kiel	1916	23.1.1917	3.1917	Austrian flag 1917 (U94), to United Kingdom 1.1919
UC53		269	Germaniawerft, Kiel	1916	27.2.1917	4.1917	Austrian flag 1917 (U95), scuttled 28.10.1918
UC54		270	Germaniawerft, Kiel	1916	20.3.1917	5.1917	Austrian flag 1917 (U96), scuttled 28.10.1918
UC55		37	KW Danzig	1916	2.8.1916	11.1916	sunk 29.9.1917
UC56		38	KW Danzig	1916	26.8.1916	12.1916	interned 23.5.1918, to France 3.1919
UC57		39	KW Danzig	1916	7.9.1916	1.1917	sunk 19.11.1917
UC58		40	KW Danzig	1916	21.10.1916	3.1917	to France 11.1918
UC59		41	KW Danzig	1916	28.9.1916	5.1917	to United Kingdom 11.1918
UC60		42	KW Danzig	1916	8.11.1916	6.1917	to United Kingdom 2.1919
UC61		259	Weser, Bremen	1916	11.11.1916	12.1916	wrecked 26.7.1917
UC62		260	Weser, Bremen	1916	9.12.1916	1.1917	sunk mid-.10.1917
UC63		261	Weser, Bremen	1916	6.1.1917	1.1917	sunk 1.11.1917
UC64		262	Weser, Bremen	1916	27.1.1917	2.1917	sunk 20.6.1918
UC65		281	Blohm & Voss, Hamburg	1916	8.7.1916	11.1916	sunk 3.11.1917
UC66		282	Blohm & Voss, Hamburg	1916	15.7.1916	11.1916	sunk 12.6.1917
UC67		283	Blohm & Voss, Hamburg	1916	6.8.1916	12.1916	Austrian flag 1917 (U91), to United Kingdom 1.1919
UC68		284	Blohm & Voss, Hamburg	1916	12.8.1916	12.1916	sunk 13.3.1917
UC69		285	Blohm & Voss, Hamburg	1916	7.8.1916	12.1916	collision 6.12.1917
UC70		286	Blohm & Voss, Hamburg	1916	7.8.1916	11.1916	sunk 28.8.1918
UC71		287	Blohm & Voss, Hamburg	1916	12.8.1916	11.1916	lost on transfer to United Kingdom 20.2.1919
UC72		288	Blohm & Voss, Hamburg	1916	12.8.1916	12.1916	sunk 20.8.1917
UC73		289	Blohm & Voss, Hamburg	1916	26.8.1916	12.1916	Austrian flag 1917 (U92), to United Kingdom 1.1919
UC74		79	Vulcan, Hamburg	1916	19.10.1916	11.1916	Austrian flag 1917 (U93), interned 21.11.1918, to France 3.1919
UC75		80	Vulcan, Hamburg	1916	6.11.1916	12.1916	sunk 31.5.1918
UC76		81	Vulcan, Hamburg	1916	25.11.1916	12.1916	interned 13.11.1918, to United Kingdom 12.1918
UC77		82	Vulcan, Hamburg	1916	2.12.1916	12.1916	lost 7.1918
UC78		83	Vulcan, Hamburg	1916	8.12.1916	1.1917	lost 5.1918
UC79		84	Vulcan, Hamburg	1916	19.12.1916	1.1917	sunk 4.1918

Technical data

Displacement standard, t
Displacement normal, t	UC16 - 24: 417 / 493 UC25 - 33, 40 - 45: 400 / 480 UC34 - 39: 427 / 509 UC46 - 48: 420 / 502 UC49 - 54: 434 / 511 UC55 - 60: 415 / 498 UC61 - 64: 422 / 504 UC65 - 73: 427 / 508 UC74 - 79: 410 / 493
Length, m	UC16 - 24: 49.4 UC25 - 33, 40 - 45: 49.5 UC34 - 39, 65 - 73: 50.4 UC46 - 48, 61 - 64: 51.9 UC49 - 54: 52.7 UC55 - 60, 74 - 79: 50.5
Breadth, m	5.22
Draught, m	UC16 - 33, 40 - 45: 3.68 UC34 - 39, 74 - 79: 3.65 UC46 - 48, 61 - 64: 3.67 UC49 - 54, 65 - 73: 3.64 UC55 - 60: 3.61
No of shafts	2
Machinery	UC16 - 24, 34 - 39: 2 MAN diesels / 2 Brown Boveri electric motors UC25 - 27, 31 - 33, 46 - 48, 61 - 73: 2 MAN diesels / 2 SSW electric motors UC28 - 30, 76 - 79: 2 Daimler diesels / 2 SSW electric motors UC40 - 45, 74, 75: 2 Körting diesels / 2 SSW electric motors UC49, 50, 55 - 57: 2 Körting diesels / 2 Brown Boveri electric motors UC51 - 54, 58 - 60: 2 Daimler diesels / 2 Brown Boveri electric motors
Power, h. p.	UC16 - 33: 500 / 460 UC34 - 39, 46 - 48: 600 / 460 UC40 - 45: 520 / 460 UC49 - 79: 600 / 620
Max speed, kts	UC16 - 24: 11.6 / 7 UC25 - 33: 11.6 / 6.7 UC34 - 39: 11.9 / 6.8 UC40 - 45: 11.7 / 6.7 UC46 - 48: 11.7 / 6.9 UC49 - 54: 11.8 / 7.2 UC55 - 60: 11.6 / 7.3 UC61 - 64: 11.9 / 7.2 UC65 - 73: 12 / 7.4 UC74 - 79: 11.8 / 7.3
Fuel, t	UC16 - 24, 49 - 60, 65 - 73: diesel oil 56 UC25 - 45, 74 - 79: diesel oil 55 UC46 - 48: diesel oil 41 UC61 - 64: diesel oil 43
Endurance, nm(kts)	UC16 - 24: 9430(7) / 55(4) UC25 - 27: 9260(7) / 53(4) UC28 - 30: 9410(7) / 53(4) UC31 - 33: 10040(7) / 53(4) UC34 - 39: 10100(7) / 54(4) UC40 - 45: 9410(7) / 60(4) UC46 - 48: 7280(7) / 54(4) UC49 - 54: 9450(7) / 56(4) UC55 - 60: 9450(7) / 52(4) UC61 - 64: 8000(7) / 59(4) UC65 - 73: 10420(7) / 52(4) UC74 - 79: 10230(7) / 52(4)
Armament	1 x 1 - 88/27 TK L/30 C/08, 1 x 1 - 7.9/79, 3 - 500 TT (2 bow, 1 stern, 7), 18 mines
Complement	26
Diving depth operational, m	50

Standard scale images

Graphics

Project history

UC II type minelayers; double-hulled boats with improved range and sea-keeping compared with the UC I type. They varied in details (particularly the shape of the bow) and machinery was increased in power in later boats. War orders C (UC16-33) and H (UC34-79).

Modernizations

1918, some survived: - 1 x 1 - 88/27; + 1 x 1 - 105/42 Utof L/45 C/16

Naval service

UC16 was mined in the English Channel 23.10.1917. UC18 was sunk by British decoy vessel Lady Olive 19.2.1917 in the English Channel. UC19 was sunk by British destroyer Ariel in the English Channel 6.12.1916. UC21 was lost by unknown cause in September-October 1917 in the North Sea area. UC24 was torpedoed 24.5.1917 by French submarine Circé in the Adriatic Sea. UC25, UC34 and UC53 were scuttled at Pola by own crews 28.10.1918, 30.10.1918 and 28.10.1918 respectively. UC26 was sunk by British destroyers Milne, Mentor and Miranda 9.5.1917 in the mouth of Thames. UC29 was sunk in Atlantic 7.6.1917 by British decoy vessel Pargust. UC30 was mined in the North Sea 19.4.1917. UC32 sank after explosion of own mine in the laying tube 23.2.1917 in the North Sea. UC33 was sunk by British patrol boat P61 S of Ireland. UC35 was sunk by French patrol ship Ailly 16.5.1918 SW of Sardinia. UC36 was was sunk by unknown cause 18.5.1917 in the North Sea. UC37 was captured by Antanta 25.11.1918 at Sevastopol. UC38 was sunk by French destroyer Lansquenet 14.12.1917 in the Gulf of Corinth. UC39 was sunk by British destroyer Thrasher 8.2.1917 in the North Sea. UC40 foundered by unknown cause on transfer route 21.1.1919 in the North Sea. UC41 was sunk by own mine and British trawlers Jacinth, Thomas Young and Chikara 21.8.1917 in the North Sea. UC42 was sunk by own mine 10.9.1917 S of Ireland. UC43 was torpedoed by British submarine G13 in the Atlantis 10.3.1917. UC44 was mined 5.8.1917 S of Ireland. UC45 was lost 17.9.1917 in the underwater accident, salvaged 11.4.1918, commissioned again in October, 1918. UC46 was sunk by British destroyer Liberty 8.2.1917 in the English Channel. UC47 was sunk by British patrol boat P57 18.11.1917 in the North Sea. UC48 was badly damaged by depth charges from British ships off El Ferrol 20.3.1918, interned by Spain and finally lost on transfer route off El Ferrol 15.3.1919. UC49 was sunk by British destroyer Opossum and 7 motor launches 8.8.1918 SSW of Berry Head. UC50 was sunk by British destroyer Zubian 4.2.1918 in the English Channel. UC51 was mined 17.11.1917 in the English Channel. UC54 was scuttled 28.10.1918 at Trieste. UC55 was accidentally damaged 29.9.1917 off Lerwick and later sunk by British trawler Moravia and destroyers Sylvia and Tyrade. UC56 was interned 23.5.1918 by Spain at Santander after engine damage and later was transferred to France. UC57 was sunk on Russian mine 19.11.1917 in the Gulf of Finland. UC61 wrecked 26.7.1917 in the English Channel. UC62 was mined in mid- October 1917 off Portland. UC63 was torpedoed by British submarine E52 in the English Channel 1.11.1917. UC64 was mined 20.6.1918 in the English Channel. UC65 was torpedoed by British submarine C15 in the English Channel 3.11.1917. UC66 was sunk by British trawler Sea King 12.6.1917 in the English Channel. UC68 was stricken by own mine 13.3.1917 ENE of Star Point. UC69 collided with submarine U96 6.12.1917 in the English Channel and sank. UC70 was sunk by British monitors 5.6.1917 at Ostend, salvaged, commissioned again in January 1918 and sunk again by British destroyer Ouse 28.8.1918 in the North Sea. UC71 was lost by unknown cause 20.2.1919 in the North Sea on transfer route. UC72 was sunk by British decoy vessel Acton 20.8.1917 in the Thames mouth. UC74 was interned at Barcelona 21.11.1918 with empty fuel tanks and transferred to France next year. UC75 was sunk by British destroyer Fairy 31.5.1918 in the North Sea. UC76 was lost after explosion of own mine in the laying tube 10.5.1917 off Helgoland, salvaged that day, commissioned again and interned 13.11.1918 at Carlscrona (Sweden). UC77 was lost by unknown cause in July 1918 in the English Channel. UC78 was lost in May 1918 in the English Channel by unknown cause. UC79 was probably mined in April 1918 in the English Channel.