Q-ship: Wikis


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From Wikipedia, the free encyclopedia

Mystery Ship redirects here. For the 1917 film serial, see The Mystery Ship.

Q-ships, also known as Q-boats, Decoy Vessels, Special Service Ships or Mystery Ships, were heavily armed merchant ships with concealed weaponry, designed to lure submarines into making surface attacks. This gave Q-ships the chance to open fire and sink them. The basic ethos of every Q-ship was to be a wolf in sheep's clothing.

They were used by the British Royal Navy (RN) during the First World War and by both the RN and the United States Navy during the Second World War (1939–1945), as a countermeasure against German U-boats and Japanese submarines.


First World War

British Q-ship HMS Tamarisk

Following the First Battle of the Atlantic, by 1915, Britain was in desperate need of a countermeasure against the U-boats that were strangling her sea-lanes. Convoys, which proved effective in earlier times (and would again prove effective during the Second World War), were rejected by the resource-strapped Admiralty and the independent captains. Depth charges of the time were very primitive, and thus the only method of sinking a submarine was by gunfire or by ramming while on the surface. The problem was luring the U-boat to the surface.

One solution to this problem was the creation of the Q-ship, one of the most closely-guarded secrets of the war. Their codename referred to the vessels' home port, Queenstown, in Ireland[1]. These would be known to the Germans as a U-Boot-Falle ("U-boat trap"). The Q-ship would pose as an easy target for the U-boat but in fact carry hidden armament. A typical Q-ship might resemble an old tramp steamer calmly sailing alone near an area where a U-boat was reported to be operating. By posing as a suitable target for the U-boat's deck gun, the Q-ship might encourage the U-boat captain to bring his vessel to the surface rather than use one of his expensive torpedoes, which were in short supply. The cargoes of the Q-ships would be light wood (balsa or cork) or wooden caskets, so even if torpedoed they would stay afloat, encouraging the U-boat to surface and use its gun. If necessary the crew could even stage an "abandon ship" routine. Once a U-boat was in a suitable position the Q-ship would change rapidly, false panels would drop to reveal the hidden guns which would start firing. At the same time the White Ensign (Royal Navy flag) would be raised. With the element of surprise the U-boat could be quickly overwhelmed.

The first victory of a Q-ship occurred on 23 June 1915, when U-40 was sunk off Eyemouth by the submarine HMS C24, cooperating with the decoy vessel Taranaki, commanded by Lieutenant Frederick Henry Taylor CBE DSC RN. The first victory by an unaided Q-ship came on 24 July 1915 when the Prince Charles, commanded by Lt Mark-Wardlaw, DSO, sank U-36. The civilian crew of Prince Charles received a cash award. In August of that year, an even smaller converted fishing trawler named HM Armed Smack Inverlyon successfully destroyed UB-4 near Great Yarmouth. The Inverlyon was an unpowered sailing craft fitted with a small 3 pounder (47 mm) gun. The British crew put 9 rounds from the 3 pounder and small arms fire into U-4 at close range sinking her with the loss of all hands, despite the attempt of the Inverlyon's skipper to rescue one German submariner.

On August 19, 1915, Lieutenant Godfrey Herbert RN of the HMS Baralong sank U-27 which was preparing to sink a nearby transport ship. About a dozen of the sailors survived and swam towards the merchantman. Herbert, supposedly fearing that they would scuttle her, ordered them to be shot at as they swam towards the transport and sent a boarding party to kill German sailors already aboard. This became known as the "Baralong Incident".

HMS Farnborough (Q-5) sank SM U-68 on 22 March 1916. Her commander, Gordon Campbell, was awarded the VC.

Lieutenant-Commander William Edward Sanders VC, DSO, a New Zealander commanding HMS Prize, was awarded the Victoria Cross for an action on 30 April 1917 with U-93, which was severely damaged. Sanders waited, while his ship sustained heavy shellfire, until the submarine was within 80 yards, whereupon he hoisted the White Ensign and the Prize opened fire. The submarine appeared to sink. Unbeknownst to Sanders, the submarine did not sink and struggled back to port. With his ship marked by the survivors of U-93, Sanders and his crew were killed when they were attacked by U-43 on 14 August 1917.

In the course of 150 engagements, Q-ships destroyed 14 U-boats and damaged 60, at a cost of 27 Q-ships lost out of 200. Q-ships were responsible for about 10% of all U-boats sunk, ranking them far below the use of mine fields in overall effectiveness. Neither German Q-Boat, Möwe and Wolf, were successful in destroying enemy submarines.

Second World War

Yeomen and supply clerks of USS Anacapa exhibiting non-regulation attire typical of Q-ship duty to imitate merchant ships.
Hinged flaps aft of the anchor hid 3" guns aboard USS Anacapa.
USS Carolyn aka USS Atik AK-101

Nine Q-Ships were commissioned by the Royal Navy in September and October 1939 for work in the North Atlantic:[2 ]

  • 610-ton HMS Chatsgrove (X85) ex-Royal Navy PC-74 built 1918
  • 5,072-ton HMS Maunder (X28) ex-King Gruffyd built 1919
  • 4,443-ton HMS Prunella (X02) ex-Cape Howe built 1930
  • 5,119-ton HMS Lambridge (X15) ex-Botlea built 1917
  • 4,702-ton HMS Edgehill (X39) ex-Willamette Valley built 1928
  • 5,945-ton HMS Brutus (X96) ex-City of Durban built 1921
  • 4,398-ton HMS Cyprus (X44) ex-Cape Sable built 1936
  • 1,030-ton HMS Looe (X63) ex-Beauty built 1924
  • 1,090-ton HMS Antoine (X72) ex-Orchy built 1930

Prunella and Edgehill were torpedoed and sunk 21 and 29 June 1940 without even sighting a U-Boat. The rest of the vessels were paid off in March 1941 without successfully accomplishing any mission.[3]

The last Royal Navy Q-ship, 2,456-ton HMS Fidelity (D57), was converted in September, 1940, to carry a torpedo defense net, four 4-inch (10-cm) guns, four torpedo tubes, two OS2U Kingfisher float planes, and Motor Torpedo Boat 105. Fidelity sailed with a French crew, and was sunk by U-435 on 30 December 1942 during the battle for Convoy ON-154.[2 ]

By January 12, 1942, the British Admiralty's intelligence community had noted a "heavy concentration" of U-boats off the "North American seaboard from New York to Cape Race" and passed along this fact to the United States Navy. That day, U-123 under Kapitänleutnant Reinhard Hardegen, torpedoed and sank the British steamship Cyclops, inaugurating Paukenschlag (literally, "a strike on the kettledrum" and sometimes referred to in English as "Operation Drumbeat"). U-boat commanders found peacetime conditions prevailing along the coast: towns and cities were not blacked-out and navigational buoys remained lighted; shipping followed normal routines and "carried the normal lights." Paukenschlag had caught the United States unaware.

Losses mounted rapidly. On January 20, 1942, Commander-in-Chief, United States Fleet (Cominch), sent a coded dispatch to Commander, Eastern Sea Frontier (CESF), requesting immediate consideration of the manning and fitting-out of "Queen" ships to be operated as an antisubmarine measure. The result was "Project LQ."

Five vessels were acquired and converted secretly in Portsmouth, New Hampshire:

The careers of all five ships were almost entirely unsuccessful and very short, with USS Atik sunk on its first patrol[1]; all Q-ships patrols ended in 1943.

American Q-ships also operated in the Pacific Ocean. One was USS Anacapa (AG-49) formerly the lumber transport Coos Bay which was converted to Q-ship duty as project "Love William." Anacapa was not successful in engaging any enemy submarines, although she is believed to have damaged two friendly subs with depth charges when they were improperly operating in her vicinity. Anacapa was also withdrawn from Q-ship duty in 1943 and served out the remainder of WWII as an armed transport in the South Pacific and Aleutian Islands.

Use against modern pirates

Attacks on merchant ships by pirates originating on the Somalia coast have brought suggestions from some security experts that Q-ships be used again to tempt pirates into attacking a well defended ship .[4]

Related terms

The term (or "Q-car") has subsequently been used to describe cars that have much higher than average performance (often through extensive modification) but look like a conventional, uninteresting family transport.

A Q-train looks outwardly like an ordinary rail train, but is staffed by railway police to combat trespassing and vandalism on railway routes.

The Q-ship concept is also used by science fiction author David Weber in his Honor Harrington books, as in On Basilisk Station and Honor Among Enemies.

Later era Battletech introduces dropships that have been converted into Q-ships, particularly used by the Word of Blake.

Q-ships are also present in the Star Fleet Battles and Federation Commander starship combat games.

See also


  1. ^ a b Beyer, Kenneth M.: Q-Ships versus U-Boats. America's Secret Project. Naval Institute Press. Annapolis, Maryland, USA. 1999. ISBN 15575000444
  2. ^ a b Lenton, H.T. and Colledge, J.J.: British and Dominion Warships of World War II, 1968, p.279
  3. ^ Marder, Arthur: "The Influence of History on Sea Power: The Royal Navy and the Lessons of 1914-1918", The Pacific Historical Review, Vol. 41, No. 4. (Nov., 1972), pp. 413-443.[1]
  4. ^ "Use Q ships against pirates?". Safety at Sea International (Lloyd's Register). 9 Apr 2009. http://www.safetyatsea.net/login.aspx?reason=denied_empty&script_name=/secure/display.aspx&path_info=/secure/display.aspx&articlename=dn0020090409000022. Retrieved 2009-04-11.  

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