NAVYPEDIA

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
U57		212	Weser, Bremen	1914	29.4.1916	7.1916	to France 11.1918
U58		213	Weser, Bremen	1914	31.5.1916	8.1916	sunk 17.11.1917
U59		214	Weser, Bremen	1914	20.6.1916	9.1916	sunk 14.5.1917
U60		215	Weser, Bremen	1914	5.7.1916	11.1916	to United Kingdom 11.1918
U61		216	Weser, Bremen	1914	22.7.1916	12.1916	sunk 26.3.1918
U62		217	Weser, Bremen	1914	2.8.1916	12.1916	to United Kingdom 11.1918
U99		250	Weser, Bremen	1916	27.1.1917	3.1917	sunk 7.7.1917
U100		251	Weser, Bremen	1916	25.2.1917	4.1917	to United Kingdom 11.1918
U101		252	Weser, Bremen	1916	1.4.1917	5.1917	to United Kingdom 11.1918
U102		253	Weser, Bremen	1916	12.5.1917	6.1917	lost 9.1918
U103		254	Weser, Bremen	1916	9.6.1917	7.1917	sunk 12.5.1918
U104		255	Weser, Bremen	1916	3.7.1917	8.1917	sunk 25.4.1918

Technical data

Displacement standard, t
Displacement normal, t	U57 - 59: 786 / 954 U60 - 62: 768 / 956 U99 - 104: 750 / 952
Length, m	U57 - 62: 67.0 U99 - 104: 67.6
Breadth, m	6.32
Draught, m	U57 - 59: 3.79 U60 - 62: 3.74 U99 - 104: 3.65
No of shafts	2
Machinery	2 MAN diesels / 2 SSW electric motors
Power, h. p.	U57 - 59: 1800 / 1200 U60 - 62, 99 - 104: 2400 / 1200
Max speed, kts	U57 - 59: 14.7 / 8.4 U60 - 62: 16.5 / 8.4 U99 - 104: 16.5 / 8.8
Fuel, t	U57 - 59: diesel oil 119 U60 - 62: diesel oil 128 U99 - 104: diesel oil 114
Endurance, nm(kts)	U57 - 59: 7730(8) / 55(5) U60 - 62: 11400(8) / 49(5) U99 - 104: 10100(8) / 45(5)
Armament	U57 - 60: 2 x 1 - 88/27 TK L/30 C/08, 4 - 500 TT (2 bow, 2 stern, 7) U61, 62: 1 x 1 - 105/43 TK L/45 C/16, 4 - 500 TT (2 bow, 2 stern, 7) U99, 100: 1 x 1 - 105/42 Utof L/45 C/16, 4 - 500 TT (2 bow, 2 stern, 10 - 12) U101 - 104: 2 x 1 - 88/27 TK L/30 C/08, 4 - 500 TT (2 bow, 2 stern, 10 - 12)
Complement	36
Diving depth operational, m	50

Project history

Medium coastal submarines of Mobilization type, first submarines built by A G Weser. Double-hulled. War orders A (U57-62) and G (U99-104).

Modernizations

1916-1917, U57: - 2 x 1 - 88/27; + 1 x 1 - 105/43 TK L/45 C/16

1916-1917, U58-60: - 2 x 1 - 88/27; + 1 x 1 - 105/42 Utof L/45 C/16

1918, U100: + 1 x 1 - 88/27 TK L/30 C/08

1918, U101-104: - 1 x 1 - 88/27; + 1 x 1 - 105/42 Utof L/45 C/16

Naval service

U58 was sunk by USN destroyers Fanning and Nicholson 17.11.1917 in Bristol Channel off Lundy Island. U59 sank on German mine 14.5.1917 in the North Sea. U61 26.3.3918 was sunk by British patrol boat PC51 off Waterford. U99 was torpedoed by British submarine J2 7.7.1917 in the North Sea. U102 was lost at end of September, 1918 in the North Sea, probably mined. U103 12.5.1918 was rammed by British s/s Olympic in the English Channel. U104 was sunk by ramming and depth charges of British sloop Jessamine 25.4.1918 in the Atlantic.