H-class
General Characteristics
Displacement:	Group Surfaced Submerged 1/2 364 tons 434 tons 3 423 tons 510 tons
Length:	Group 1/2 150.25 oa 3 171 oa
Beam:	15.3 oa
Draught:	Group 1/2 3.68 m 3 3.81 m
Propulsion:	Twin-shift, 480 hp Vickers diesel, 2 x 620 hp electric motors
Speed:	Surfaced Submerged 13 knots 10 knots
Range:	1,600 nm surfaced, 130 nm submerged
Complement:	22
Armament:	Group Torpedoes 1/2 4 x 18" bow tubes 8 reloads 3 4 x 21" bow tube 6/8 reloads

The H-Class submarines constructed for the British Royal Navy between 1915 and 1919 were designed and built in response to German boats which mined British waters and sank coastal shipping with ease due to their small size. The H-Class was therefore created to perform similar operations in German waters, and to attack German submarines operating in British waters. Despite their cramped size and lack of a deck gun, the class became enormously popular amongst submariners, and saw action all around the British Isles, some being transferred as far as the Adriatic. Due to the later arrival of most of the class, they were unable to have a massive impact, only achieving two victories (the German submarines Unterseeboot 51 and Unterseeboot B-52) for the loss of four of their own number in the First World War. Post war many were retained in the Royal Navy for training purposes, and four more were lost in wrecks during the twenties. At the outbreak of the Second World War they were drastically obsolete, but nevertheless were retained in training and coastal warfare roles to help the Royal Navy cope with heavy losses to the submarine fleet during the early stages of the war. Two were sunk during this duty by German countermeasures. Image File history File links Naval_Ensign_of_the_United_Kingdom. ... Vickers Armstrong (Aircraft) company logo Vickers, founded as the Vickers Company in 1828, was a British manufacturer, primarily of military equipment, traditionally based in Barrow-in-Furness. ... Rudolf Christian Karl Diesel (1858-1913), inventor of the Diesel engine. ... German UC-1 class World War I submarine A model of Günther Priens Unterseeboot 47 (U-47), German WWII Type VII diesel-electric hunter-killer (SSK) submarine Inside of the Argonaute, showing the typical obstructed, tiny space of a post-WWII diesel attack submarine. ... The Royal Navy of the United Kingdom is the oldest of the British armed services (and is therefore the Senior Service). ... 1915 (MCMXV) was a common year starting on Friday (see link for calendar). ... 1919 (MCMXIX) was a common year starting on Wednesday (see link for calendar). ... The Adriatic Sea is an arm of the Mediterranean Sea separating the Apennine peninsula (Italy) from the Balkan peninsula, and the system of the Apennine Mountains from that of the Dinaric Alps and adjacent ranges. ... Ypres, 1917, in the vicinity of the Battle of Passchendaele. ... Mushroom cloud from the nuclear explosion over Nagasaki rising 18 km into the air. ...

Boats

Group 1

Group 1 was built in Canada at the Canadian Vickers Yards in Montreal before being transported across the Atlantic and deployed from Britain. This was necessary because British shipyards were too overcrowded and busy to construct submarines at this time. Motto: Concordia Salus Coordinates: Country Canada Province Québec Founded 1642 Established 1832 Mayor Gérald Tremblay Area    - City 366. ...

• • H1 - Launched May 1915.
  • H2 - Launched June 1915.
  • H3 - Launched June 1915. Mined and sunk July 1916
  • H4 - Launched June 1915.
  • H5 - Launched June 1915. Rammed and sunk March 1918
  • H6 - Launched June 1915. Interned purchased by the Dutch January 1916
  • H7 - Launched June 1915.
  • H8 - Launched June 1915.
  • H9 - Launched June 1915.
  • H10 - Launched June 1915. Disappeared 1918

Look up May in Wiktionary, the free dictionary. ... June is the sixth month of the year in the Gregorian calendar, with a length of 30 days. ... June is the sixth month of the year in the Gregorian calendar, with a length of 30 days. ... June is the sixth month of the year in the Gregorian calendar, with a length of 30 days. ... June is the sixth month of the year in the Gregorian calendar, with a length of 30 days. ... June is the sixth month of the year in the Gregorian calendar, with a length of 30 days. ... June is the sixth month of the year in the Gregorian calendar, with a length of 30 days. ... June is the sixth month of the year in the Gregorian calendar, with a length of 30 days. ... June is the sixth month of the year in the Gregorian calendar, with a length of 30 days. ... June is the sixth month of the year in the Gregorian calendar, with a length of 30 days. ...

Group 2

The second group was constructed simultaneously with the first group, but at Fore River Yard at Quincy. Massachusetts in the then neutral United States. When the US government discovered the construction, they impounded all the completed units, only releasing them following their own declaration of war two years later. To escape this difficulty, the British government gave six units to the Chilean Navy as partial payment for the seizure of two Chilean ships for British service in 1914 Quincy is the name of several places in the United States of America: Quincy, California Quincy, Florida Quincy, Illinois Quincy, Massachusetts Quincy, Michigan Quincy, Mississippi Quincy, Missouri Quincy, Ohio Quincy, Washington Quincy, Adams County, Wisconsin Quincy Township, Michigan Quincy may also refer to: Josiah Quincy (disambiguation) John Quincy Adams, the... Official language(s) English Capital Boston Largest city Boston Area  Ranked 44th  - Total 10,555 sq mi (27,360 km²)  - Width 183 miles (295 km)  - Length 113 miles (182 km)  - % water 13. ... Chilean Navy Jack The Chilean Navy (Armada de Chile) is the naval force of Chile. ... 1914 (MCMXIV) was a common year starting on Thursday. ...

• • H11 - Launched 1915.
  • H12 - Launched 1915.
  • H13 - Launched 1918, transferred to Chile
  • H14 - Launched 1919, transferred to Canada
  • H15 - Launched 1918, transferred to Canada
  • H16 - Launched 1918, transferred to Chile
  • H17 - Launched 1918, transferred to Chile
  • H18 - Launched 1918, transferred to Chile
  • H19 - Launched 1918, transferred to Chile
  • H20 - Launched 1918, transferred to Chile

HMCS CH-14 was a H class submarine, Canada used by the Royal Canadian Navy. ... HMCS CH-15 was a H class submarine used by the Royal Canadian Navy. ...

Group 3

Group 3 was the largest group, and was constructed in 1917-1919 in Britain, shipyard space having been granted to the project and more boats needed following the seizure of those building in the United States. They were built by Vickers, Cammell Laird, Armstrong Whitworth and WIlliam Beardmore at several locations, and most of the boats enjoyed long careers in the Royal Navy. Cammell Laird logo Cammell Laird, one of the most famous names in British shipbuilding during the nineteenth and twentieth centuries, came about following the merger of Laird, Son & Co. ... Sir W G Armstrong Whitworth & Co Ltd was a major British manufacturing company of the early years of the 20th century. ...

• • H21 - Launched 1918
  • H22 - Launched 1918
  • H23 - Launched 1918
  • H24 - Launched 1918
  • H25 - Launched 1918
  • H26 - Launched 1918
  • H27 - Launched 1918
  • H29 - Launched 1918, Sank in dockyard accident 1926
  • H30 - Launched 1918
  • H31 - Launched 1919, Mined and sunk 1941
  • H32 - Launched 1919
  • H33 - Launched 1919
  • H34 - Launched 1919
  • H35 - Launched 1919
  • Numbers H35-H40 not used
  • H41 - Launched 1918, Wrecked in collision 1920
  • H42 - Launched 1919, Wrecked in collision 1922
  • H43 - Launched 1919
  • H44 - Launched 1920
  • Numbers H45 and H46 cancelled
  • H47 - Launched 1919, Wrecked in collision 1929
  • H48 - Launched 1919
  • H49 - Launched 1919, Sunk by German surface units 1940
  • H50 - Launched 1920
  • H51 - Launched 1919
  • H52 - Launched 1919

External links

• The Canadian built British H boats
• U-boat.net information page on surviving World War Two boats