Type U 151 submarine

	U-155, a Type U 151 U-boat exhibited in London after the First World War.
Class overview
Builders	Reiherstiegwerft (Hamburg); Flensburger Schiffbau (Flensburg); Atlas Werke (Bremen); Stülcken Sohn (Hamburg);
Operators	Imperial German Navy
Completed	7
General characteristics
Displacement	1,512 tonnes (1,488 long tons) (surfaced); 1,875 tonnes (1,845 long tons) (submerged); 2,272 tonnes (2,236 long tons) (total);
Length	65.00 m (213 ft 3 in) (o/a); 57.00 m (187 ft) (pressure hull);
Beam	8.90 m (29 ft 2 in) (o/a); 5.80 m (19 ft) (pressure hull);
Height	9.25 m (30 ft 4 in)
Draught	5.30 m (17 ft 5 in)
Installed power	800 PS (590 kW; 790 bhp) (surfaced); 800 PS (590 kW; 790 bhp) (submerged);
Propulsion	2 × shafts; 2 × 1.60 m (5 ft 3 in) propellers;
Speed	12.4 knots (23.0 km/h; 14.3 mph) surfaced; 5.2 knots (9.6 km/h; 6.0 mph) submerged;
Range	25,000 nmi (46,000 km; 29,000 mi) at 5.5 knots (10.2 km/h; 6.3 mph) surfaced; 65 nmi (120 km; 75 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged;
Test depth	50 metres (160 ft)
Complement	6 officers, 50 enlisted
Armament	2 50 cm (20 in) bow torpedo tubes ; 18 torpedoes ; 2 × 15 cm (5.9 in) SK L/45 deck guns with 1672 rounds; 2 × 8.8 cm (3.5 in) Uk L/30 deck guns with 764 rounds;

Last updated June 26, 2024

Type U 151 U-boats were a class of large, long-range submarines initially constructed during World War I to be merchant submarines and later used by the Kaiserliche Marine (Imperial German Navy).

Background

In addition to the cargo-carrying submarines Deutschland and Bremen (disappeared on a cargo voyage in 1916 while it was still a merchant submarine), six further large cargo submarines were ordered, originally designed to ship material to and from locations otherwise denied German surface ships, such as the United States.^{[ citation needed ]}

On 16 December 1916, four under construction in the Reiherstieg and Flensburger Schiffbau yards were taken over by the navy and converted to military specification as Type U 151 U-boats, being designated U-151 to U-154. The remaining two, along with Deutschland, which became U-155, passed into naval control in February 1917, as U-156 and U-157.^[2]

All were fitted with two bow torpedo tubes and could carry 18 torpedoes, with the exception of the former Deutschland, which was fitted with six tubes. All were armed with two 15 cm (5.9 in) SK L/45 deck guns, and carried a crew of 56. They had a cruising range of around 25,000 nautical miles (46,000 km; 29,000 mi).

The success of the Type U 151 submarines led to "Project 46", the larger Type U 139 "U-cruisers", designed from the outset as military submarines. ^[3]

Service

Deutschland made two successful commercial voyages before being commissioned into the Kaiserliche Marine on February 17, 1917, as U-155.^{[ citation needed ]}

Max Valentiner commanded a Type U 151 U-boat, U-157, and undertook the longest cruise in the war from 27 November 1917 to 15 April 1918, a total of 139 days. High-scoring Waldemar Kophamel also commanded a Type U 151 U-boat, U-151 in late summer and fall of 1917.^{[ citation needed ]}

List of Type U 151 submarines

Seven Type U 151 submarines were built, of which six were commissioned into the Kaiserliche Marine.^[1]

U-151
U-152
U-153
U-154, sunk by HMS E35
U-155, the former merchant submarine Deutschland
U-156, probably lost to a mine in September 1918
U-157

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References

1 2 Gröner 1991, pp. 20–21.
↑ Williamson, Gordon; Ian Palmer (2002). U-boats of the Kaiser's Navy. Osprey Publishing. p. 16. ISBN 1-84176-362-4.
↑ Gröner 1991, pp. 17–19.

Bibliography

Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.

External links

Helgason, Guðmundur. "WWI U-boat Types: Type U 151". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 17 April 2007.

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[FOOTNOTEGröner199120–21-1] 1 2 Gröner 1991, pp. 20–21.

[2] Williamson, Gordon; Ian Palmer (2002). U-boats of the Kaiser's Navy. Osprey Publishing. p. 16. ISBN 1-84176-362-4.

[FOOTNOTEGröner199117–19-3] Gröner 1991, pp. 17–19.

[1]

[2]

[3]

v t e German Type U 151 submarines
U-151 U-152 U-153 U-154 U-155 U-156 U-157
Preceded by: Type U 142 Followed by: Type UA
List of U-boats of Germany

v t e German naval ship classes of World War I
Dreadnought battleships	Nassau Helgoland Kaiser König Bayern L 20e α ^X
Pre-dreadnought battleships	Brandenburg Kaiser Friedrich III Wittelsbach Braunschweig Deutschland
Battlecruisers	SMS Von der Tann ^S Moltke SMS Seydlitz ^S Derfflinger Mackensen ^X Ersatz Yorck ^X
Armored cruisers	SMS Fürst Bismarck ^S SMS Prinz Heinrich ^S Prinz Adalbert Roon Scharnhorst SMS Blücher ^S
Light cruisers	SMS Hela ^S Gazelle Bremen Königsberg Dresden Nautilus Kolberg Magdeburg Karlsruhe Graudenz Pillau Wiesbaden Königsberg Brummer Cöln FK proposals ^X
Protected cruisers	SMS Kaiserin Augusta ^S Victoria Louise
Large torpedo boats	1898 1906 1911 1913 1914 G101 ^A V105 ^N 1916 1916M 1917 1918 ^X
Small / Coastal torpedo boats	S7 A
Aircraft carriers	"I" ^X
Coastal defense ships	Siegfried Odin
U-boats	U 1 U 2 U 3 U 5 U 9 U 13 U 16 U 17 U 19 U 23 U 27 U 31 U 43 U 51 U 57 U 63 U 66 U 81 U 87 U 93 U 115 ^X U 127 U 131 ^X U 135 U 139 U 142 U 151 UA UB I UB II UB III UC I UC II UC III UD 1 ^X UE I UE II UF ^X UG ^X
S Single ship of class X Cancelled V Conversions A Building for Argentina when seized N Building for the Netherlands when seized See also: List of ships of the Imperial German Navy