HMS Marlborough (1912)
Encyclopedia

HMS Marlborough was an Iron Duke-class
Iron Duke class battleship
The Iron Duke-class was a group of four dreadnought battleships built for the British Royal Navy before the First World War. The class comprised four ships: , , , and...

 battleship
Battleship
A battleship is a large armored warship with a main battery consisting of heavy caliber guns. Battleships were larger, better armed and armored than cruisers and destroyers. As the largest armed ships in a fleet, battleships were used to attain command of the sea and represented the apex of a...

 of the Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

, named in honour of John Churchill, 1st Duke of Marlborough
John Churchill, 1st Duke of Marlborough
John Churchill, 1st Duke of Marlborough, Prince of Mindelheim, KG, PC , was an English soldier and statesman whose career spanned the reigns of five monarchs through the late 17th and early 18th centuries...

, and launched in 1912. In World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 she served in the 1st Battle Squadron
1st Battle Squadron (United Kingdom)
The British 1st Battle Squadron was a squadron of battleships, initially part of the Royal Navy's Home Fleet, renamed the Grand Fleet during World War I...

 of the Grand Fleet based at Scapa Flow
Scapa Flow
right|thumb|Scapa Flow viewed from its eastern endScapa Flow is a body of water in the Orkney Islands, Scotland, United Kingdom, sheltered by the islands of Mainland, Graemsay, Burray, South Ronaldsay and Hoy. It is about...

. She fought at the battle of Jutland
Battle of Jutland
The Battle of Jutland was a naval battle between the British Royal Navy's Grand Fleet and the Imperial German Navy's High Seas Fleet during the First World War. The battle was fought on 31 May and 1 June 1916 in the North Sea near Jutland, Denmark. It was the largest naval battle and the only...

, 31 May 1916, where she was hit by a torpedo
Torpedo
The modern torpedo is a self-propelled missile weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with it or in proximity to it.The term torpedo was originally employed for...

, killing two and injuring two.

In 1919, during the Russian Civil War
Russian Civil War
The Russian Civil War was a multi-party war that occurred within the former Russian Empire after the Russian provisional government collapsed to the Soviets, under the domination of the Bolshevik party. Soviet forces first assumed power in Petrograd The Russian Civil War (1917–1923) was a...

 the Marlborough was on duty in the Black Sea
Black Sea
The Black Sea is bounded by Europe, Anatolia and the Caucasus and is ultimately connected to the Atlantic Ocean via the Mediterranean and the Aegean seas and various straits. The Bosphorus strait connects it to the Sea of Marmara, and the strait of the Dardanelles connects that sea to the Aegean...

 and, on orders of King George V
George V of the United Kingdom
George V was King of the United Kingdom and the British Dominions, and Emperor of India, from 6 May 1910 through the First World War until his death in 1936....

 rescued his aunt, Dowager Empress Maria Feodorovna, and other members of the Russian Imperial Family, including Grand Duke Nicholas and Prince Felix Yusupov
Felix Yusupov
Prince Felix Felixovich Yusupov, Count Sumarokov-Elston , was best known for participating in the murder of Grigori Rasputin, the faith healer who was said to have influenced decisions of Tsar Nicholas II and Tsaritsa Alexandra Feodorovna.-Biography:...

.

Armament

The ships of the Iron Duke class were a modification of the design of the previous King George V class
King George V class battleship (1911)
The King George V class battleships were a series of four Royal Navy super-dreadnought battleships built just prior to and serving in the First World War.The King George V class immediately followed the Orion class upon which they were based....

 of 1911 and cost in the region of £1,891,600. They were the last of the Dreadnought
Dreadnought
The dreadnought was the predominant type of 20th-century battleship. The first of the kind, the Royal Navy's had such an impact when launched in 1906 that similar battleships built after her were referred to as "dreadnoughts", and earlier battleships became known as pre-dreadnoughts...

 battleships to be built for the Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

, and are otherwise known as 'super-dreadnoughts'. Marlborough carried a main armament of ten 13.5 inch guns
BL 13.5 inch /45 naval gun
The BL 13.5 inch Mk V gun was a British heavy naval gun, introduced in 1912 as the main armament for the new super-dreadnought battleships of the Orion class. The calibre was 13.5 inches and the barrels were 45 calibres long i.e. 607.5 inches...

 mounted in five twin turrets. The 13.5 inches (342.9 mm) guns had been initially developed for the Orion class
Orion class battleship
The Orion class battleships were four super-dreadnoughts — the first ships of that type — of the Royal Navy. The lead ship, , was launched in 1910. They were the first Royal Navy dreadnoughts to have all their main guns in the centreline, although the U.S. South Carolina class had this advanced...

 and were so successful that the type was fitted to the succeeding battleship classes, including the Iron Dukes. The guns were fitted along the centre line with B and X turrets superfiring over A and Y turrets. Q turret was sited amidships, and had restricted firing arcs. B and X were restricted from firing directly over A and Y due to the possibility of muzzle blast entering the lower turrets' sighting hoods which were still placed in the forward ends of the turret roofs.

A more radical departure was the replacement of the 4 inches (101.6 mm) guns of the secondary armament with twelve 6 inches (152.4 mm) guns. These made Marlborough more capable of engaging the larger destroyer
Destroyer
In naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against smaller, powerful, short-range attackers. Destroyers, originally called torpedo-boat destroyers in 1892, evolved from...

s and torpedo boat
Torpedo boat
A torpedo boat is a relatively small and fast naval vessel designed to carry torpedoes into battle. The first designs rammed enemy ships with explosive spar torpedoes, and later designs launched self-propelled Whitehead torpedoes. They were created to counter battleships and other large, slow and...

s then being built. Admiral of the Fleet
Admiral of the Fleet
An admiral of the fleet is a military naval officer of the highest rank. In many nations the rank is reserved for wartime or ceremonial appointments...

 Jackie Fisher had been opposed to mounting such heavy weapons on the grounds of economy, and because he believed they would be rendered useless in bad weather. He had retired by the time the class were being designed, but the guns were still heavy for a secondary armament and so they were mounted low in casemate
Casemate
A casemate, sometimes rendered casement, is a fortified gun emplacement or armored structure from which guns are fired. originally a vaulted chamber in a fortress.-Origin of the term:...

s. This had the predicted effect of often rendering them unusable in poor weather. Attempts were made to alleviate the situation including mounting Marlborough’s as far back as possible to help reduce wetness but met with limited effectiveness. Marlborough’s 6 inches (152.4 mm) guns were fitted in casemate
Casemate
A casemate, sometimes rendered casement, is a fortified gun emplacement or armored structure from which guns are fired. originally a vaulted chamber in a fortress.-Origin of the term:...

s, with five either side of the forecastle
Forecastle
Forecastle refers to the upper deck of a sailing ship forward of the foremast, or the forward part of a ship with the sailors' living quarters...

 deck and two right aft in the hull below the quarter deck, rather than in the deck houses, as had been the practice before. The two stern 6 inches (152.4 mm) guns were subsequently found to be so wet as to be useless. They were re-sited on the forecastle deck, but the forward batteries continued to be swamped in heavy seas. Eventually rubber sealing joints for the gun ports were designed and fitted at Scapa Flow
Scapa Flow
right|thumb|Scapa Flow viewed from its eastern endScapa Flow is a body of water in the Orkney Islands, Scotland, United Kingdom, sheltered by the islands of Mainland, Graemsay, Burray, South Ronaldsay and Hoy. It is about...

 to try to alleviate the situation. The fitting of the larger guns made Marlborough 25 feet (7.6 m) longer, 1 foot (0.3048 m) wider and 10 inches (254 mm) deeper and 2,000 tons heavier than previous classes.

She was also armed with two 3 inches (76.2 mm) anti-aircraft guns on her after superstructure in 1914, making the class the first British battleships to carry anti aircraft guns. Marlborough carried four submerged 21 inches (533.4 mm) torpedo tubes mounted along her sides, but unlike preceding classes, she did not carry a stern mounted torpedo tube. Her total broadside was ten 13.5 inches (342.9 mm) guns, six 6 inches (152.4 mm) guns and two 21 inches (533.4 mm) torpedo
Torpedo
The modern torpedo is a self-propelled missile weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with it or in proximity to it.The term torpedo was originally employed for...

es.

Armour

Marlborough’s armour was an improvement on the preceding King George V’s. She used Krupp Cemented Armour
Krupp armour
Krupp armour was a type of steel armour used in the construction of capital ships starting shortly before the end of the 19th century. It was developed by Germany's Krupp Arms Works in 1893 and quickly replaced Harvey armour as the primary method of protecting naval ships.The initial manufacturing...

. The main armour belt was 12 inches (304.8 mm) thick at the waterline
Waterline
The term "waterline" generally refers to the line where the hull of a ship meets the water surface. It is also the name of a special marking, also known as the national Load Line or Plimsoll Line, to be positioned amidships, that indicates the draft of the ship and the legal limit to which a ship...

, reduced to 8 inches (203.2 mm) at the lower edge. The fore and aft armoured bulkheads were 8 inches (203.2 mm) thick, but 3 inches at the lower edges, whilst the screen bulkheads were just 1.5 inches thick. These extended to the engine rooms and magazines
Magazine (artillery)
Magazine is the name for an item or place within which ammunition is stored. It is taken from the Arabic word "makahazin" meaning "warehouse".-Ammunition storage areas:...

 only. The torpedo protection for the boiler rooms consisted of the wing coal bunker spaces. The barbette
Barbette
A barbette is a protective circular armour feature around a cannon or heavy artillery gun. The name comes from the French phrase en barbette referring to the practice of firing a field gun over a parapet rather than through an opening . The former gives better angles of fire but less protection...

s had 10 inches (254 mm) of armour when mounted externally of the main ship armour, but only 3 inches (76.2 mm) when mounted internally. The turrets were armoured with 11 inches (279.4 mm) on the faces, with decreasing amounts on the sides and tops. The decks meanwhile had 2.5 inches (63.5 mm) thick protecting machinery spaces and magazines, but this was reduced to 1 inches (25.4 mm) in non-vital areas. Finally Marlborough’s conning tower
Conning tower
A conning tower is a raised platform on a ship or submarine, often armored, from which an officer can con the vessel; i.e., give directions to the helmsman. It is usually located as high on the ship as practical, to give the conning team good visibility....

 was protected by 11 inches (279.4 mm) thick armour.

Machinery

The design of Marlborough’s machinery closely followed the earlier classes of Dreadnought
Dreadnought
The dreadnought was the predominant type of 20th-century battleship. The first of the kind, the Royal Navy's had such an impact when launched in 1906 that similar battleships built after her were referred to as "dreadnoughts", and earlier battleships became known as pre-dreadnoughts...

s, consisting of four propeller
Propeller
A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the airfoil-shaped blade, and a fluid is accelerated behind the blade. Propeller dynamics can be modeled by both Bernoulli's...

s being driven by Parsons direct drive
Parsons Marine Steam Turbine Company
Parsons Marine Steam Turbine Company was a British engineering company based in Wallsend, North England, on the River Tyne.-History:The company was founded by Charles Algernon Parsons in 1897 with £500,000 of capital, and specialised in building the steam turbine engines that he had invented for...

 steam turbine
Steam turbine
A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into rotary motion. Its modern manifestation was invented by Sir Charles Parsons in 1884....

s. The machinery spaces were divided into three with the inboard shafts leading to the central engine room and the outer shafts to the port and starboard wing engine rooms. The two inboard shafts were driven by the high pressure ahead and astern turbines with the ahead turbines having an extra stage for cruising, this was separated from the main turbine by a bypass valve. The outer shafts were driven by the ahead and astern low pressure turbines, for cruising the outboard turbines would be shut down, the ship relying on the inboard shafts alone. The eighteen Babcock and Wilcox boilers were arranged in three groups of six, although coal fired oil spraying equipment was fitted for quickly raising steam. The engines were designed to produce 31000 ihp and speed of 21.5 knots (42.1 km/h). On trials though Marlborough exceeded this, producing 32013 ihp. She could carry 3,250 tons of coal and 1,050 tons of oil, giving a range of 7780 nautical miles (14,408.6 km) at 10 knots (19.6 km/h).

Construction and commissioning

Marlborough was ordered under the 1911 Naval Estimates and the contract to build her was awarded to Devonport Dockyard
HMNB Devonport
Her Majesty's Naval Base Devonport , is one of three operating bases in the United Kingdom for the Royal Navy . HMNB Devonport is located in Devonport, in the west of the city of Plymouth in Devon, England...

, of Plymouth
Plymouth
Plymouth is a city and unitary authority area on the coast of Devon, England, about south-west of London. It is built between the mouths of the rivers Plym to the east and Tamar to the west, where they join Plymouth Sound...

. She was laid down on 25 January 1912 and launched on 24 October 1912. She was commissioned in June of 1914, the second of the Iron Dukes to do so, behind her sister HMS Iron Duke
HMS Iron Duke (1912)
HMS Iron Duke was a battleship of the Royal Navy, the lead ship of her class, named in honour of Arthur Wellesley, 1st Duke of Wellington. She served as the flagship of the Grand Fleet during the First World War, including at the Battle of Jutland...

. She cost in region of £2,043,437. The month after commissioning she joined the 1st Battle Squadron
1st Battle Squadron (United Kingdom)
The British 1st Battle Squadron was a squadron of battleships, initially part of the Royal Navy's Home Fleet, renamed the Grand Fleet during World War I...

 of the Grand Fleet, then based at Scapa Flow
Scapa Flow
right|thumb|Scapa Flow viewed from its eastern endScapa Flow is a body of water in the Orkney Islands, Scotland, United Kingdom, sheltered by the islands of Mainland, Graemsay, Burray, South Ronaldsay and Hoy. It is about...

.

Service history

Along with the remainder of the 1st battle squadron, of which she was its flagship until February of 1917, Marlborough saw action at the battle of Jutland
Battle of Jutland
The Battle of Jutland was a naval battle between the British Royal Navy's Grand Fleet and the Imperial German Navy's High Seas Fleet during the First World War. The battle was fought on 31 May and 1 June 1916 in the North Sea near Jutland, Denmark. It was the largest naval battle and the only...

. After firing 162 13.5 inch shells, she was hit by a torpedo that killed two and wounded two others. Marlborough had to be towed back to port with a slight list. After repairs were finished on 29 July, 1916, she returned to the Grand Fleet.

In 1919, during the Russian Civil War
Russian Civil War
The Russian Civil War was a multi-party war that occurred within the former Russian Empire after the Russian provisional government collapsed to the Soviets, under the domination of the Bolshevik party. Soviet forces first assumed power in Petrograd The Russian Civil War (1917–1923) was a...

 the Marlborough was on duty in the Black Sea
Black Sea
The Black Sea is bounded by Europe, Anatolia and the Caucasus and is ultimately connected to the Atlantic Ocean via the Mediterranean and the Aegean seas and various straits. The Bosphorus strait connects it to the Sea of Marmara, and the strait of the Dardanelles connects that sea to the Aegean...

. On orders of King George V
George V of the United Kingdom
George V was King of the United Kingdom and the British Dominions, and Emperor of India, from 6 May 1910 through the First World War until his death in 1936....

, the ship rescued his aunt, Dowager Empress Maria Feodorovna, and other members of the Russian Imperial Family, including Grand Duke Nicholas and Prince Felix Yusupov
Felix Yusupov
Prince Felix Felixovich Yusupov, Count Sumarokov-Elston , was best known for participating in the murder of Grigori Rasputin, the faith healer who was said to have influenced decisions of Tsar Nicholas II and Tsaritsa Alexandra Feodorovna.-Biography:...

. Following the war, Marlborough was retained by the Royal Navy under the terms of the Washington Naval Treaty
Washington Naval Treaty
The Washington Naval Treaty, also known as the Five-Power Treaty, was an attempt to cap and limit, and "prevent 'further' costly escalation" of the naval arms race that had begun after World War I between various International powers, each of which had significant naval fleets. The treaty was...

until 1932, when she was sold for scrap.

External links

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