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Class overview | |
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Name | Pathfinder class |
Builders | Cammell Laird, Birkenhead |
Operators | ![]() |
Preceded by | Forward class |
Succeeded by | Sentinel class |
Built | 1903–1905 |
In commission | 1905–1919 |
Completed | 2 |
Lost | 1 |
Scrapped | 1 |
General characteristics (as built) | |
Type | Scout cruiser |
Displacement | 2,940 long tons (2,987 t) |
Length | 370 ft (112.8 m) (p/p) |
Beam | 38 ft 9 in (11.8 m) |
Draught | 15 ft 2 in (4.6 m) (deep load) |
Installed power |
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Propulsion | 2 Shafts, 2 triple-expansion steam engines |
Speed | 25 knots (46 km/h; 29 mph) |
Range | 3,400 nmi (6,300 km; 3,900 mi) at 10 knots (19 km/h; 12 mph) |
Complement | 289 |
Armament | |
Armour |
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The Pathfinder-class cruisers were a pair of scout cruisers built for the Royal Navy in the first decade of the 20th century. The sister ships spent much of the first decade of their careers in reserve. When the First World War began in August 1914 they were given coastal defence missions, Pathfinder on the coast of Scotland and Patrol on the coast of Yorkshire. The latter ship was badly damaged when the Germans bombarded Hartlepool in December. She spent the rest of the war in British waters. The ship was paid off in 1919 and sold for scrap the following year. Pathfinder was sunk by a German submarine shortly after the war began, the first sinking of a British warship during the war by a German submarine.
In 1901–1902, the Admiralty developed scout cruisers to work with destroyer flotillas, leading their torpedo attacks and backing them up when attacked by other destroyers. In May 1902, it requested tenders for a design that was capable of 25 knots (46 km/h; 29 mph), a protective deck, a range of 2,000 nautical miles (3,700 km; 2,300 mi) and an armament of six quick-firing (QF) 12-pounder (3 in (76 mm)) 18 cwt guns, [Note 1] eight QF 3-pounder (47 mm) guns and two 18-inch (450 mm) torpedo tubes. It accepted four of the submissions and ordered one ship from each builder in the 1902–1903 Naval Programme and a repeat in the following year's programme. [1]
The two ships from Cammell Laird became the Pathfinder class. Four more 12-pounders were added to the specification in August. The ships had a length between perpendiculars of 370 feet (112.8 m), a beam of 38 feet 9 inches (11.8 m) and a draught of 15 feet 2 inches (4.6 m) at deep load. They displaced 2,940 long tons (2,987 t) at normal load and 3,240 long tons (3,292 t) at deep load. Their crew consisted of 289 officers and ratings. [2]
The Pathfinder-class ships were powered by a pair of four-cylinder triple-expansion steam engines, each driving one shaft, using steam provided by a dozen Laird-Normand boilers that exhausted into three funnels. The engines were designed to produce a total of 16,500 indicated horsepower (12,300 kW) which was intended to give a maximum speed of 25 knots. [3] Pathfinder slightly exceeded her design speed when she ran her sea trials in 1905. [4] The scout cruisers soon proved too slow for this role as newer destroyers outpaced them. The sisters carried a maximum of 600 long tons (610 t) of coal which gave them a range of 3,400 nautical miles (6,300 km; 3,900 mi) at 10 knots (19 km/h; 12 mph). [5]
The main armament of the Pathfinder class consisted of ten QF 12-pounder 18-cwt guns. [6] Three guns were mounted abreast on the forecastle and the quarterdeck, with the remaining four guns positioned port and starboard amidships. They also carried eight QF 3-pounder Hotchkiss guns and two single mounts for 18-inch torpedo tubes, one on each broadside. The ships' protective deck armour ranged in thickness from .625 to 1.5 inches (16 to 38 mm) and the conning tower had armour 3 inches (76 mm) inches thick. They had a waterline belt 2 inches (51 mm) thick abreast engine rooms only. [3]
Ship | Builder [7] | Laid down [7] | Launched [7] | Completed [7] | Fate [7] |
---|---|---|---|---|---|
HMS Pathfinder | Cammell Laird, Birkenhead | 15 August 1903 | 16 July 1904 | 18 July 1905 | Sunk by a submarine, 5 September 1914 |
HMS Patrol | 31 October 1903 | 13 October 1904 | 26 September 1905 | Sold for scrap, April 1920 |
The sisters were in reserve for most of the first decade of their existence. After the beginning of the First World War in August 1914, they were assigned to coastal defence duties on the East Coast of England. Patrol was badly damaged during the German bombardment of Hartlepool in mid-December 1914 when she attempted to exit the harbour during the bombardment. After repairs were completed she remained on coast defence duties until she was transferred to the Irish Sea in 1918. The ship was paid off in 1919 and sold for scrap in 1920. [8]
Pathfinder was originally to have been named Fastnet but the name was changed before construction was started. [9] Leader of the 8th Destroyer Flotilla, she was torpedoed and sunk by the German submarine U-21 in the approaches to the Firth of Forth on 5 August 1914 with the loss of 259 men, [10] giving her the distinction of being the first warship sunk by a submarine. [11]
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HMS Pathfinder was the lead ship of her class of two British scout cruisers, and was the first ship ever to be sunk by a self-propelled torpedo fired by submarine. She was built by Cammell Laird, Birkenhead, launched on 16 July 1904, and commissioned on 18 July 1905. She was originally to have been named HMS Fastnet, but was renamed prior to construction. During the beginning of World War I, the Pathfinder was sunk on 5 September 1914 by a German U-boat, the SM U-21.
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HMS Berwick was one of 10 Monmouth-class armoured cruisers built for the Royal Navy in the first decade of the 20th century. She was assigned to the 2nd Cruiser Squadron of the Channel Fleet upon completion in 1903 and was transferred to the Home Fleet in 1906. She accidentally rammed and sank a British destroyer in 1908. Berwick was refitted in 1908–09 before she was transferred to the 4th Cruiser Squadron on the North America and West Indies Station later that year.
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HMS Sentinel was one of two Sentinel-class scout cruisers built for the Royal Navy in the first decade of the 20th century. The ship was initially assigned to the Mediterranean Fleet before returning home and being reduced to reserve in 1907. Recommissioned two years later as part of the Home Fleet, she spent the next five years moving on and off of active service in British waters. Sentinel was assigned to coastal defence duties when the First World War began in 1914, although she was transferred to the Mediterranean in 1915. By 1918 the ship had been assigned to the Aegean. After the end of the war in November, Sentinel was sent to the Black Sea as the British attempted to intervene in the Russian Civil War. The ship returned home in early 1919 and was paid off. She became a training ship from mid-1920 to the end of 1922 and was sold for scrap in early 1923.
The Sentinel-class cruisers were a pair of scout cruisers built for the Royal Navy in the first decade of the 20th century. The sister ships spent about half of the first decade of their careers in reserve and were based in home waters when on active duty. When the First World War began in August 1914 they were given coastal defence missions on the north eastern coast of Britain. The ships were transferred to the Mediterranean in 1915 and then to the Aegean in mid-1916 where they remained until the end of the war in late 1918. Skirmisher was paid off in 1919 and was scrapped the following year, but Sentinel supported the British attempt to intervene in the Russian Civil War for a few months after the end of the war. She also returned home in 1919, but served as a training ship for a few years before she was broken up in 1923.
HMS Patrol was one of two Pathfinder-class scout cruisers which served built for the Royal Navy in the first decade of the 20th century. The ship was in reserve for most of the first decade of her existence. After the beginning of the First World War in August 1914, she was assigned to coastal defence duties on the East Coast of England. Patrol was badly damaged during the German bombardment of Hartlepool in mid-December 1914 when she attempted to exit the harbour during the bombardment. After repairs were completed she remained on coast defence duties until she was transferred to the Irish Sea in 1918. The ship was paid off in 1919 and sold for scrap in 1920.
The Forward-class cruisers were a pair of scout cruisers built for the Royal Navy in the first decade of the 20th century. The sister ships spent much of the first decade of their careers in reserve. When the First World War began in August 1914 they were given coastal defence missions, Foresight in the English Channel and Forward on the coast of Yorkshire. The latter ship was in Hartlepool when the German bombarded it in December, but never fired a shot. The ships were transferred to the Mediterranean in 1915 and then to the Aegean in mid-1916 where they remained until 1918. They survived the war, but were scrapped shortly afterwards.
HMS Forward was the name ship of her class of two scout cruisers built for the Royal Navy in the first decade of the 20th century. The ship was in reserve for most of the first decade of her existence. After the beginning of the First World War in August 1914, she was assigned to coastal defence duties on the East Coast of England. Forward was present when the Germans bombarded Hartlepool in mid-December 1914, but played no significant role in the battle. The ship was sent to the Mediterranean in mid-1915 and was then assigned to the Aegean Sea a year later, together with her sister ship, Foresight, and remained there until the end of the war. After returning home in 1919, she was sold for scrap in 1921.
HMS Foresight was one of two Forward-class scout cruisers built for the Royal Navy during the first decade of the 20th century. The ship was in reserve for most of the first decade of her existence. After the beginning of the First World War in August 1914, she was initially assigned to the Dover Patrol and was then transferred to the 8th Destroyer Flotilla. Foresight was sent to the Mediterranean in mid-1915 and was then assigned to the Aegean Sea a year later, together with her sister ship, Forward, and remained there until the end of the war. After returning home in 1919, she was sold for scrap in 1920.
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HMS Adventure was the name ship of her class of two scout cruisers built for the Royal Navy during the first decade of the 20th century. For two years after being completed in 1905, the ship was in reserve. She was commissioned in mid-1907 as a flotilla leader in the Home Fleet. When the First World War began in August 1914, she was assigned to patrol the English Channel. In mid-1915 Adventure was transferred to Irish waters to serve as the flagship there. In early 1918, the ship escorted convoys to Gibraltar before being transferred to the Mediterranean at the end of the war. She returned home in mid-1919 and was paid off. Adventure was sold for scrap in early 1920.
HMS Attentive was one of two Adventure-class scout cruisers built for the Royal Navy during the first decade of the 20th century. Completed in 1905 the ship was placed in reserve until she was commissioned in 1907 as part of the Home Fleet. She then spent the next seven years moving on and off of active service in British waters. The ship sank one destroyer and damaged two others in collisions. Attentive was assigned to coastal defence duties when the First World War began in 1914, and spent most of the war assigned to the Dover Patrol. She played a minor role in the Zeebrugge Raid in early 1918 and was then assigned to escort convoys to Gibraltar. The ship was sent to the White Sea later in the year to support the unsuccessful North Russia intervention in the Russian Civil War. Attentive paid off at the end of 1918 and was sold for scrap in 1920.