HMS K5
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HMS ''K5'' was one of the K-class
submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...
s that served in the
Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
from 1917–1921. She was lost with all hands when she sank en route to a mock battle in the
Bay of Biscay The Bay of Biscay ( ) is a gulf of the northeast Atlantic Ocean located south of the Celtic Sea. It lies along the western coast of France from Point Penmarc'h to the Spanish border, and along the northern coast of Spain, extending westward ...
.


War service

At the end of the war in 1918, ''K5'' was part of the 12th Submarine
Flotilla A flotilla (from Spanish, meaning a small ''flota'' ( fleet) of ships), or naval flotilla, is a formation of small warships that may be part of a larger fleet. Composition A flotilla is usually composed of a homogeneous group of the same cla ...
based at
Rosyth Rosyth () is a town and Garden City in Fife, Scotland, on the coast of the Firth of Forth. Scotland's first Garden city movement, Garden City, Rosyth is part of the Greater Dunfermline Area and is located 3 miles south of Dunfermline city cen ...
, along with six others of the K-class.


Loss

''K5'' left
Torbay Torbay is a unitary authority with a borough status in the ceremonial county of Devon, England. It is governed by Torbay Council, based in the town of Torquay, and also includes the towns of Paignton and Brixham. The borough consists of ...
on 19 January 1921 with the , , and as part of the Atlantic Fleet for a mock battle in the Bay of Biscay. The submarine was commanded by an experienced officer, Lieutenant Commander John A Gaimes, DSO, RN, but had a new crew. The other officers on board were
Lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a Junior officer, junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, Security agency, security services ...
F Cuddeford, Engineer-Lieutenant E Bowles,
Acting Acting is an activity in which a story is told by means of its enactment by an actor who adopts a character—in theatre, television, film, radio, or any other medium that makes use of the mimetic mode. Acting involves a broad range of sk ...
Engineer-Lieutenant G Baker, Lieutenant B Clarke and Acting Lieutenant R Middlemist. The full complement included 51 ratings on board. All 57 hands were lost on 20 January about south-west of the
Isles of Scilly The Isles of Scilly ( ; ) are a small archipelago off the southwestern tip of Cornwall, England. One of the islands, St Agnes, Isles of Scilly, St Agnes, is over farther south than the most southerly point of the Great Britain, British mainla ...
. She had signalled that she was diving but she did not surface at the end of the exercise. An oil slick was discovered and after planks from the battery covers and a sailor's "ditty box" were recovered, it was presumed that she had somehow gone past her maximum depth and been crushed. On return from her exercises in the Mediterranean in 1922, and the rest of the fleet dropped wreaths and held a memorial service where ''K5'' had gone down.


Problems with the K-class

Retired
Rear-Admiral Rear admiral is a flag officer rank used by English-speaking navies. In most European navies, the equivalent rank is called counter admiral. Rear admiral is usually immediately senior to commodore and immediately below vice admiral. It is ...
S.S. Hall wrote in ''
The Times ''The Times'' is a British Newspaper#Daily, daily Newspaper#National, national newspaper based in London. It began in 1785 under the title ''The Daily Universal Register'', adopting its modern name on 1 January 1788. ''The Times'' and its si ...
'' under the heading "An Experts Theory" "An Expert's Theory." ''Times'' ondon, England24 Jan. 1921: 10+. The Times Digital Archive. Web. 24 Sept. 2016. "...it may be taken as certain that the loss of the vessel was due to some delay to checking the downward momentum gained by the vessel being overtrimmed in diving, either by admitting compressed air too slowly to too many tanks at one time, to tanks only partially full, or to a sea connexion being closed prematurely." The waters where the battle exercises were taking place were so deep that the vessel would have been crushed, losing control due to the intake of water. Admiral Hall wrote that it was "not clear why the 'K' class should be taken for cruises in the Atlantic in winter." He describes the submarines as 'freaks' that were designed especially for the conditions of the
North Sea The North Sea lies between Great Britain, Denmark, Norway, Germany, the Netherlands, Belgium, and France. A sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian Se ...
during
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
. "The high surface speed necessitates great length, and the further complication of steam demands very large openings for funnels and air intakes to boiler rooms. These have always been a source of great anxiety in bad weather or in rapid diving." He also drew attention to the need for a thoroughly trained crew to operate them safely. suffered a similar fate during her acceptance trials, when she foundered with the loss of 32 of those on board. The cause of the incident was related to the openings to which Hall refers.


References

*"K5 sunk with all hands lost." (24 January 1921), ''
The Times ''The Times'' is a British Newspaper#Daily, daily Newspaper#National, national newspaper based in London. It began in 1785 under the title ''The Daily Universal Register'', adopting its modern name on 1 January 1788. ''The Times'' and its si ...
'', p. 10, 11 & 12. {{DEFAULTSORT:K05 British K-class submarines British submarine accidents Maritime incidents in 1921 Royal Navy ship names Shipwrecks of the Isles of Scilly Cornish shipwrecks Ships built in Portsmouth 1916 ships