HMS E50 was a British E class submarine

British E class submarine

The British E class submarines started out as improved versions of the British D class submarine. All of the first group and some of the second group were completed before the outbreak of World War I....

 built by John Brown

John Brown & Company

John Brown and Company of Clydebank was a pre-eminent Scottish marine engineering and shipbuilding firm, responsible for building many notable and world-famous ships, such as the , the , the , the , the , and the...

, Clydebank

Clydebank

Clydebank is a town in West Dunbartonshire, in the Central Lowlands of Scotland. Situated on the north bank of the River Clyde, Clydebank borders Dumbarton, the town with which it was combined to form West Dunbartonshire, as well as the town of Milngavie in East Dunbartonshire, and the Yoker and...

. She was laid down on 14 November 1916 and was commissioned on 23 January 1917.

HMS E50 was damaged in a collision while submerged on 19 March 1917 off the North Hinder Light Vessel with U-Boat

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...

 UC-62

SM UC-62

SM UC-62 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916, laid down on 3 April 1916, and was launched on 9 December 1916...

.

HMS E50 was finally mined off the South Dogger Light Vessel on 31 January 1918.