German type UB III submarine
The Type UB III submarine was a class of U-boat
U-boat is the anglicized version of the German word U-Boot , itself an abbreviation of Unterseeboot , and refers to military submarines operated by Germany, particularly in World War I and World War II...

 built during World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 by the Kaiserliche Marine
Kaiserliche Marine
The Imperial German Navy was the German Navy created at the time of the formation of the German Empire. It existed between 1871 and 1919, growing out of the small Prussian Navy and Norddeutsche Bundesmarine, which primarily had the mission of coastal defense. Kaiser Wilhelm II greatly expanded...


UB III boats carried 10 torpedoes and were armed with one 88 mm deck gun. They carried a crew of 34 and had a cruising range of around 9,000 miles. Between 1916 and 1918 96 were built.

The UB III type coastal submarine, despite being a submersible torpedo boat was less akin to UB-II
German type UB II submarine
The UB II type submarine was a class of U-boat built during World War I by the Kaiserliche Marine. They were enlarged from the preceding type UB I and were more effective vessels. The boats were a single hull design with a 50 metre maximum diving depth and a 30-45 second diving time...

 type "attack" (i.e. torpedo-launching) boats that preceded it than the highly successful UC-II
German Type UC II submarine
Type UC II minelaying submarines were used by the Kaiserliche Marine during the World War I. They displaced 417 tons, carried 7 torpedoes and up to 18 mines...

 type minelaying submarine. The UC-IIs had gained their fearsome reputation by sinking more than 1800 Allied and neutral vessels. German engineers did not miss the chance of expanding the potential of this capable design by incorporating some of her features into a new submersible torpedo boat.

The UB-IIIs joined the conflict during the first days of the year 1917, at a time when the tide of the war was turning against Germany. In the months that followed, the United States Navy was added to the ranks of their enemies; and the convoy system was introduced, making it difficult to engage enemy merchant shipping without being spotted by destroyer escorts. Nevertheless, the UB-IIIs performed their duties with distinction, sinking 567 ships before the end of hostilities.

Germany was prohibited from acquiring a new submarine force by the Treaty of Versailles
Treaty of Versailles
The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of...

, but her admirals had no intention of allowing their nation to forget how to construct submarines. Germany started to manufacture and to export slightly modified versions of UB-IIs and UB-IIIs. Having kept the skills of their engineers polished by this means, they eventually ordered the construction of a new coastal submarine. The resulting design was an improved UB-III that had the benefit of new, all-welded construction techniques and an array of electronic and electromechanical gadgets: The famous Type VII submarine, the most common U-boat of the Kriegsmarine
The Kriegsmarine was the name of the German Navy during the Nazi regime . It superseded the Kaiserliche Marine of World War I and the post-war Reichsmarine. The Kriegsmarine was one of three official branches of the Wehrmacht, the unified armed forces of Nazi Germany.The Kriegsmarine grew rapidly...

, was born.

List of Type UB III submarines

There were 95 Type UB III submarines commissioned into the Kaiserliche Marine.

  • SM UB-48
    SM UB-48
    SM UB-48 was one of the 329 submarines serving in the Imperial German Navy in World War I.UB-48 was engaged in the naval warfare and took part in the First Battle of the Atlantic.- Career :...

  • SM UB-49
  • SM UB-50
    SM UB-50
    SM UB-50 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 20 May 1916. She was commissioned into the Pola Flotilla of the German Imperial Navy on 12 July 1917 as SM UB-50....

  • SM UB-51
  • SM UB-52
  • SM UB-53
  • SM UB-54
  • SM UB-55
  • SM UB-56
  • SM UB-57
  • SM UB-58
  • SM UB-59
  • SM UB-60
  • SM UB-61
  • SM UB-62
  • SM UB-63
  • SM UB-64
  • SM UB-65
  • SM UB-66
  • SM UB-67
  • SM UB-68
    SM UB-68
    SM UB-68 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 20 May 1916. She was commissioned into the German Imperial Navy on 5 Oct 1917 as SM UB-68."SM" stands for "Seiner Majestät" and combined with the U for Unterseeboot...

  • SM UB-69
  • SM UB-70
  • SM UB-71

  • SM UB-72
  • SM UB-73
  • SM UB-74
  • SM UB-75
  • SM UB-76
  • SM UB-77
  • SM UB-78
  • SM UB-79
  • SM UB-80
  • SM UB-81
  • SM UB-82
  • SM UB-83
  • SM UB-84
  • SM UB-85
    SM UB-85
    SM UB-85 was a Type UB III U-boat of the German Kaiserliche Marine during World War I. Ordered on 23 September 1916, the U-boat was built at the A.G...

  • SM UB-86
  • SM UB-87
  • SM UB-88
  • SM UB-89
  • SM UB-90
  • SM UB-91
  • SM UB-92
  • SM UB-93
  • SM UB-94
  • SM UB-95

  • SM UB-96
  • SM UB-97
  • SM UB-98
  • SM UB-99
  • SM UB-100
  • SM UB-101
  • SM UB-102
  • SM UB-103
  • SM UB-104
  • SM UB-105
  • SM UB-106
  • SM UB-107
    SM UB-107
    SM UB-107 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 23 September 1913 and launched on 21 July 1917...

  • SM UB-108
  • SM UB-109
  • SM UB-110
  • SM UB-111
  • SM UB-112
  • SM UB-113
  • SM UB-114
  • SM UB-115
    SM UB-115
    SM UB-115 was a German Type UB III submarine or U-boat of the Kaiserliche Marine. She was the only German submarine commissioned with the number 115....

  • SM UB-116
  • SM UB-117
  • SM UB-118
  • SM UB-119

  • SM UB-120
  • SM UB-121
  • SM UB-122
  • SM UB-123
  • SM UB-124
  • SM UB-125
  • SM UB-126
  • SM UB-127
  • SM UB-128
  • SM UB-129
  • SM UB-130
  • SM UB-131
  • SM UB-132
    SM UB-132
    SM UB-132 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 28 February 1917 and laid down on 22 October 1917...

  • SM UB-133
  • SM UB-136
  • SM UB-142
  • SM UB-143
  • SM UB-144
  • SM UB-145
  • SM UB-148
  • SM UB-149
  • SM UB-150
  • SM UB-154
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