NAVYPEDIA

Photo

U7

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
U5		147	Germaniawerft, Kiel	1908	8.1.1910	7.1910	sunk 18.12.1914
U6		148	Germaniawerft, Kiel	1908	18.5.1910	8.1910	sunk 15.9.1915
U7		149	Germaniawerft, Kiel	1909	28.7.1910	7.1911	sunk 21.1.1915
U8		150	Germaniawerft, Kiel	1909	14.3.1911	6.1911	sunk 4.3.1915

Technical data

Displacement standard, t
Displacement normal, t	505 / 636
Length, m	57.3
Breadth, m	5.60
Draught, m	3.55
No of shafts	2
Machinery	4 Körting petrol engines / 2 SSW electric motors
Power, h. p.	900 / 1040
Max speed, kts	13.4 / 10.2
Fuel, t	petrol 54
Endurance, nm(kts)	1900(13) / 80(5)
Armament	1 x 1 - 7.9/79, 4 - 450 TT (2 bow, 2 stern, 6)
Complement	28
Diving depth operational, m	30

Graphics

Project history

Medium coastal submarines. Double-hulled.

Modernizations

by late 1914, all: - 1 x 1 - 7.9/79; + 1 x 5 - 37/27 RV L/30

1915, U6, 8: + 1 x 1 - 50/37 SK L/40 C/92

Naval service

U5 was mined in the English Channel 18.12.1914. U6 was torpedoed by British submarine E16 off Norwegian coast 15.9.1915. U7 was torpedoed by German submarine U22 in the North Sea 21.1.1915. U8 was sunk by explosive paravanes of British destroyers Maori and Gurkha 4.3.1915 in the English Channel.