Gangut class battleship
Encyclopedia

The Gangut-class battleships were the first 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 begun for the Imperial Russian Navy
Imperial Russian Navy
The Imperial Russian Navy refers to the Tsarist fleets prior to the February Revolution.-First Romanovs:Under Tsar Mikhail Feodorovich, construction of the first three-masted ship, actually built within Russia, was completed in 1636. It was built in Balakhna by Danish shipbuilders from Holstein...

 before 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...

. They had a convoluted design history involving several British companies, evolving requirements, an international design competition, and foreign protests. Four ships were ordered in 1909; two were named after victorious battles of Peter the Great
Peter I of Russia
Peter the Great, Peter I or Pyotr Alexeyevich Romanov Dates indicated by the letters "O.S." are Old Style. All other dates in this article are New Style. ruled the Tsardom of Russia and later the Russian Empire from until his death, jointly ruling before 1696 with his half-brother, Ivan V...

 in the Great Northern War
Great Northern War
The Great Northern War was a conflict in which a coalition led by the Tsardom of Russia successfully contested the supremacy of the Swedish Empire in northern Central Europe and Eastern Europe. The initial leaders of the anti-Swedish alliance were Peter I the Great of Russia, Frederick IV of...

 and the other two were named after battles in the Crimean War
Crimean War
The Crimean War was a conflict fought between the Russian Empire and an alliance of the French Empire, the British Empire, the Ottoman Empire, and the Kingdom of Sardinia. The war was part of a long-running contest between the major European powers for influence over territories of the declining...

. Three ships of the class used names of pre-dreadnought battleships of the lost in the Russo-Japanese War
Russo-Japanese War
The Russo-Japanese War was "the first great war of the 20th century." It grew out of rival imperial ambitions of the Russian Empire and Japanese Empire over Manchuria and Korea...

. Construction was delayed by financing problems until the Duma
Duma
A Duma is any of various representative assemblies in modern Russia and Russian history. The State Duma in the Russian Empire and Russian Federation corresponds to the lower house of the parliament. Simply it is a form of Russian governmental institution, that was formed during the reign of the...

 formally authorized the ships in 1911. They were delivered from December 1914 through January 1915, although they still needed work on the turrets and fire-control systems until mid-1915. Their role was to defend the mouth of the Gulf of Finland
Gulf of Finland
The Gulf of Finland is the easternmost arm of the Baltic Sea. It extends between Finland and Estonia all the way to Saint Petersburg in Russia, where the river Neva drains into it. Other major cities around the gulf include Helsinki and Tallinn...

 against the Germans, who never tried to enter, so the ships spent their time training and providing cover for minelaying
Minelayer
Minelaying is the act of deploying explosive mines. Historically this has been carried out by ships, submarines and aircraft. Additionally, since World War I the term minelayer refers specifically to a naval ship used for deploying naval mines...

 operations. Their crews participated in the general mutiny
Mutiny
Mutiny is a conspiracy among members of a group of similarly situated individuals to openly oppose, change or overthrow an authority to which they are subject...

 of the Baltic Fleet
Baltic Fleet
The Twice Red Banner Baltic Fleet - is the Russian Navy's presence in the Baltic Sea. In previous historical periods, it has been part of the navy of Imperial Russia and later the Soviet Union. The Fleet gained the 'Twice Red Banner' appellation during the Soviet period, indicating two awards of...

 after the February Revolution
February Revolution
The February Revolution of 1917 was the first of two revolutions in Russia in 1917. Centered around the then capital Petrograd in March . Its immediate result was the abdication of Tsar Nicholas II, the end of the Romanov dynasty, and the end of the Russian Empire...

 in 1917, and joined the Bolshevik
Bolshevik
The Bolsheviks, originally also Bolshevists , derived from bol'shinstvo, "majority") were a faction of the Marxist Russian Social Democratic Labour Party which split apart from the Menshevik faction at the Second Party Congress in 1903....

s the following year. The Russians were forced to evacuate their naval base at Helsinki
Helsinki
Helsinki is the capital and largest city in Finland. It is in the region of Uusimaa, located in southern Finland, on the shore of the Gulf of Finland, an arm of the Baltic Sea. The population of the city of Helsinki is , making it by far the most populous municipality in Finland. Helsinki is...

 after Finland
Finland
Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

 became independent in December 1917. The Gangut-class ships led the first contingent of ships to Kronstadt
Kronstadt
Kronstadt , also spelled Kronshtadt, Cronstadt |crown]]" and Stadt for "city"); is a municipal town in Kronshtadtsky District of the federal city of St. Petersburg, Russia, located on Kotlin Island, west of Saint Petersburg proper near the head of the Gulf of Finland. Population: It is also...

 even though the Gulf of Finland was still frozen.

All of the dreadnoughts except for were laid up
Reserve fleet
A reserve fleet is a collection of naval vessels of all types that are fully equipped for service but are not currently needed, and thus partially or fully decommissioned. A reserve fleet is informally said to be "in mothballs" or "mothballed"; an equivalent expression in unofficial modern U.S....

 in October–November 1918 for lack of manpower. was severely damaged by a fire while laid up in 1919. Petropavlovsk was retained in commission to defend Kronstadt and Leningrad against the British forces supporting the Whites Russians
White movement
The White movement and its military arm the White Army - known as the White Guard or the Whites - was a loose confederation of Anti-Communist forces.The movement comprised one of the politico-military Russian forces who fought...

 although she also helped to suppress a mutiny by the garrison of Fort Krasnaya Gorka in 1919. Her crew, and that of the , joined the Kronstadt Rebellion
Kronstadt rebellion
The Kronstadt rebellion was one of many major unsuccessful left-wing uprisings against the Bolsheviks in the aftermath of the Russian Civil War...

 of March 1921. After it was bloodily crushed, those ships were given proper 'revolutionary' names. The other two serviceable vessels were recommissioned and renamed in 1925–26 while some work was done to repair Frunze, as Poltava was now known, but the money quickly ran out for her repairs. Parizhskaya Kommuna, the former Sevastopol, was modified in 1928 to improve her sea-keeping abilities so that she could be transferred to the Black Sea Fleet
Black Sea Fleet
The Black Sea Fleet is a large operational-strategic sub-unit of the Russian Navy, operating in the Black Sea and the Mediterranean Sea since the late 18th century. It is based in various harbors of the Black Sea and the Sea of Azov....

 which had nothing heavier than a light cruiser available. This proved to be the first of a series of modernizations where each ship of the class was progressively reconstructed and improved. A number of proposals were made in the 1930s to rebuild Frunze to match her sisters
Sister ship
A sister ship is a ship of the same class as, or of virtually identical design to, another ship. Such vessels share a near-identical hull and superstructure layout, similar displacement, and roughly comparable features and equipment...

 or even as a battlecruiser by removing one turret, but these came to naught and she was hulk
Hulk (ship)
A hulk is a ship that is afloat, but incapable of going to sea. Although sometimes used to describe a ship that has been launched but not completed, the term most often refers to an old ship that has had its rigging or internal equipment removed, retaining only its flotational qualities...

ed preparatory to scrapping.

The two ships of the Baltic Fleet did not play a prominent role in the Winter War
Winter War
The Winter War was a military conflict between the Soviet Union and Finland. It began with a Soviet offensive on 30 November 1939 – three months after the start of World War II and the Soviet invasion of Poland – and ended on 13 March 1940 with the Moscow Peace Treaty...

, but did have their anti-aircraft
Anti-aircraft warfare
NATO defines air defence as "all measures designed to nullify or reduce the effectiveness of hostile air action." They include ground and air based weapon systems, associated sensor systems, command and control arrangements and passive measures. It may be to protect naval, ground and air forces...

 guns significantly increased before Operation Barbarossa
Operation Barbarossa
Operation Barbarossa was the code name for Germany's invasion of the Soviet Union during World War II that began on 22 June 1941. Over 4.5 million troops of the Axis powers invaded the USSR along a front., the largest invasion in the history of warfare...

 in 1941. However this did not help either ship as they attempted to provide fire support for the defenders of Leningrad. Marat had her bow blown off and Oktyabrskaya Revolyutsiya was badly damaged by multiple bomb hits in September. The former was sunk, but later raised and became a floating battery for the duration of the Siege of Leningrad
Siege of Leningrad
The Siege of Leningrad, also known as the Leningrad Blockade was a prolonged military operation resulting from the failure of the German Army Group North to capture Leningrad, now known as Saint Petersburg, in the Eastern Front theatre of World War II. It started on 8 September 1941, when the last...

 while the latter spent over a year under repair, although this was lengthened by subsequent bomb hits while in the hands of the shipyard. Both ships bombarded German and Finnish troops so long as they remained within reach, but Oktyabrskaya Revolyutsiya did not venture away from Kronstadt for the duration of the war. Parizhskaya Kommuna remained in Sevastopol until forced to evacuate by advancing German troops. She made one trip to besieged Sevastopol in December 1941 and made a number of bombardments in support of the Kerch Offensive during January–March 1942. She was withdrawn from combat in April as German aerial supremacy had made it too risky to risk such a large target.

Sevastopol and Oktyabrskaya Revolyutsiya remained on the active list after the end of the war although little is known of their activities. Both were reclassified as 'school battleships' (uchebnyi lineinyi korabl) in 1954 and stricken in 1956 after which they were slowly scrapped
Ship breaking
Ship breaking or ship demolition is a type of ship disposal involving the breaking up of ships for scrap recycling. Most ships have a lifespan of a few decades before there is so much wear that refitting and repair becomes uneconomical. Ship breaking allows materials from the ship, especially...

. There were several plans (Project 27) to reconstruct Petropavlovsk using the bow of Frunze, but they were not accepted and were formally cancelled on 29 June 1948. She was renamed Volkhov in 1950 and served as a stationary training ship until stricken in 1953 and subsequently broken up. Frunze was finally scrapped beginning in 1949.

Design and development

After the end of the Russo-Japanese War
Russo-Japanese War
The Russo-Japanese War was "the first great war of the 20th century." It grew out of rival imperial ambitions of the Russian Empire and Japanese Empire over Manchuria and Korea...

 the Imperial Russian Navy was in a state of confusion. Its leadership, tactics and ship designs had all been cast into disrepute by its repeated defeats by the Japanese at the Battle of Tsushima
Battle of Tsushima
The Battle of Tsushima , commonly known as the “Sea of Japan Naval Battle” in Japan and the “Battle of Tsushima Strait”, was the major naval battle fought between Russia and Japan during the Russo-Japanese War...

, Battle off Ulsan
Battle off Ulsan
The naval Battle off Ulsan , also known as the Battle of the Japanese Sea or Battle of the Korean Strait, took place on 14 August 1904 during the Russo-Japanese War, four days after the Battle of the Yellow Sea.-Background:The Vladivostok Cruiser Unit of the Russian fleet...

 and the Battle of the Yellow Sea
Battle of the Yellow Sea
The Battle of the Yellow Sea was a major naval engagement of the Russo-Japanese War, fought on 10 August 1904. In the Russian Navy, it was referred to as the Battle of 10 August. The battle foiled an attempt by the Russian fleet at Port Arthur to break out and form up with counterparts from...

. The Navy took quite some time to absorb the design lessons from the war while the government reformed the Naval Ministry and forced many of its more conservative officers to retire. It conducted a design contest for a dreadnought in 1906, but the Duma
Duma
A Duma is any of various representative assemblies in modern Russia and Russian history. The State Duma in the Russian Empire and Russian Federation corresponds to the lower house of the parliament. Simply it is a form of Russian governmental institution, that was formed during the reign of the...

 refused to authorize it, preferring to spend the money on rebuilding the Army.

The requirements for a new class of dreadnoughts were in a state of flux during 1907, but Vickers Ltd submitted a design that met the latest specifications and was very nearly accepted by the Navy for a 22000 long tons (22,353.1 t) ship with twelve 12 inches (30 cm) guns in triple, superimposed turrets
Superfire
The idea of superfire is to locate two turrets in a row, one behind the other, but with the second turret located above the one in front so that the second turret could fire over the first...

. However rumors of a contract with Vickers raised a public outcry as they had some problems with the armored cruiser
Armored cruiser
The armored cruiser was a type of warship of the late 19th and early 20th centuries. Like other types of cruiser, the armored cruiser was a long-range, independent warship, capable of defeating any ship apart from a battleship, and fast enough to outrun any battleships it encountered.The first...

  then building in England
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

. The Naval Ministry defused the situation on 30 December 1907All dates used in this article are New Style
Old Style and New Style dates
Old Style and New Style are used in English language historical studies either to indicate that the start of the Julian year has been adjusted to start on 1 January even though documents written at the time use a different start of year ; or to indicate that a date conforms to the Julian...

by announcing an international design contest with the ship built in Russia regardless of the nationality of the winning firm. By the deadline of 12 March 1908 a total of 51 designs had been submitted by 13 different shipyards. The winner of the competition was a design from the German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 firm of Blohm & Voss
Blohm + Voss
Blohm + Voss , is a German shipbuilding and engineering works. It is a subsidiary of ThyssenKrupp Marine Systems; there were plans to sell 80% of Blohm + Voss to Abu Dhabi Mar Group, but talks collapsed in July 2011.-History:It was founded on April 5, 1877, by Hermann Blohm and Ernst Voss as a...

, but the French
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 protested that they did not want to see any of the money that they had loaned Russia to build up its defenses in German pockets. The Russians bought the design for 250,000 ruble
Ruble
The ruble or rouble is a unit of currency. Currently, the currency units of Belarus, Russia, Abkhazia, South Ossetia and Transnistria, and, in the past, the currency units of several other countries, notably countries influenced by Russia and the Soviet Union, are named rubles, though they all are...

s and shelved it to placate both sides. A design by the Baltic Works
Baltic Shipyard
The Baltic Shipyard is one of the oldest shipyards in Russia. It is located in Saint Petersburg in the south-western part of the Vasilievsky Island. It is one of the three shipyards active in Saint Petersburg...

 had been the runner-up and was revised for the Navy's updated requirements with a complete design to be presented by 22 March 1909. This was extended by a month to allow the Baltic Works to finalize its contract with the British firm of John Brown & Company
John Brown & Company
John Brown and Company of Clydebank was a pre-eminent Scottish marine engineering and shipbuilding firm, responsible for building many notable and world-famous ships, such as the , the , the , the , the , and the...

 for design assistance with the hull form and machinery.

The Naval General Staff believed that a speed advantage over the 21 kn (25.6 mph; 41.2 km/h) German battle fleet would prove very useful in battle, as demonstrated at the Battle of Tsushima, but use of the heavy and bulky Belleville Water-tube boiler
Water-tube boiler
A water tube boiler is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating tubes...

s, as insisted upon by the Engineering Section of the Naval Technical Committee, would prevent the new design from exceeding 21.25 knots itself. However, after John Brown indicated that the ship's turbines could deliver 45000 shp if supplied with enough steam and that the hull form could reach 23 kn (28 mph; 45.1 km/h) with 45,000 horsepower, the Naval General Staff took the opportunity to get the speed it desired by using small-tube boiler
Boiler (steam generator)
A boiler or steam generator is a device used to create steam by applying heat energy to water. Although the definitions are somewhat flexible, it can be said that older steam generators were commonly termed boilers and worked at low to medium pressure but, at pressures above this, it is more...

s. It convened a meeting of the Naval Technical Committee to discuss the issue, but packed it with engineers from the fleet who were in favor of small-tube boilers and the Engineering Section was outvoted. The Yarrow
Yarrow Shipbuilders
Yarrow Limited , often styled as simply Yarrows, was a major shipbuilding firm based in the Scotstoun district of Glasgow on the River Clyde...

 small-tube boiler was significantly smaller and lighter than Belleville large-tube boiler, but required more frequent cleaning and repair and their horsepower dropped off more rapidly with use.

The Russians did not believe that super firing
Superfire
The idea of superfire is to locate two turrets in a row, one behind the other, but with the second turret located above the one in front so that the second turret could fire over the first...

 turrets offered any advantage as they discounted the value of axial fire, believed that broadside fire was much more important and also believed that super firing turrets could not fire while over the lower turret because of muzzle blast
Muzzle flash
Muzzle blast is the term used to describe the release of high temperature, high pressure gases expelled from the muzzle of a firearm when it is discharged. Muzzle flash is the term used to describe the visible light of the muzzle blast. The blast and flash are caused by the combustion products of...

 interfering with the open sighting hoods in the lower turret's roof. They therefore designed the ships with a 'linear' arrangement (lineinoe raspolozhenie) of turrets distributed over the length of the ship. This arrangement had several advantages because it reduced the stress on the ends of the ship since the turrets were not concentrated at the end of the ship, increased stability because the lack of elevated turrets and their barbettes, improved the survivability of the ship because the magazine
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:...

s were separated from each other and gave a lower silhouette. Disadvantages were that the magazines had to be put in the middle of all the machinery, which required steam pipes to be run through or around them and the lack of deck space free from blast. This greatly complicated the placement of the anti-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...

 guns which ultimately had to be mounted in the hull, closer to the water than was desirable.

General characteristics

The Ganguts were 180 metres (590.6 ft) long at the waterline and 181.2 metre long overall. They had a beam
Beam (nautical)
The beam of a ship is its width at the widest point. Generally speaking, the wider the beam of a ship , the more initial stability it has, at expense of reserve stability in the event of a capsize, where more energy is required to right the vessel from its inverted position...

 of 26.9 metres (88.3 ft) and a draft
Draft (hull)
The draft of a ship's hull is the vertical distance between the waterline and the bottom of the hull , with the thickness of the hull included; in the case of not being included the draft outline would be obtained...

 of 8.99 metre, 49 centimetre more than designed. They were completed overweight and their displacement was 24800 tonnes (24,408.2 LT) at load, over 1500 tonne more than their designed displacement of 23288 tonnes (22,920.1 LT). This reduced their freeboard by about 16 inches (41 cm) and gave them a slight bow trim that made them very wet ships.

High-tensile steel was used throughout the longitudinally-framed hull with mild steel used only in areas that did not contribute to structural strength. This, plus refinements in the design process, meant that the hull was 19% lighter than that of the preceding pre-dreadnoughts. The hull was subdivided by 13 transverse watertight bulkhead
Bulkhead (partition)
A bulkhead is an upright wall within the hull of a ship or within the fuselage of an airplane. Other kinds of partition elements within a ship are decks and deckheads.-Etymology:...

s and had a double bottom
Double bottom
A double bottom is a ship hull design and construction method where the bottom of the ship has two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is somewhat higher in the ship, perhaps a few feet, which forms a...

. The engine and condenser rooms were divided by two longitudinal bulkheads. They had two electrically driven rudders on the centerline, the main rudder abaft the smaller auxiliary rudder. Their designed metacentric height
Metacentric height
The metacentric height is a measurement of the static stability of a floating body. It is calculated as the distance between the centre of gravity of a ship and its metacentre . A larger metacentric height implies greater stability against overturning...

 was 1.76 metres (5.8 ft).

Propulsion

Ten Parsons
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...

-type 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 drove the four propellers. The engine rooms were located between turret
Turret
In architecture, a turret is a small tower that projects vertically from the wall of a building such as a medieval castle. Turrets were used to provide a projecting defensive position allowing covering fire to the adjacent wall in the days of military fortification...

s three and four in three transverse compartments. The outer compartments each had a high-pressure ahead and reverse turbine for each wing propeller shaft. The central engine room had two each low-pressure ahead and astern turbines as well as two cruising turbines driving the two center shafts. The engines had a total designed output of 42000 shp, but they produced 52000 shp during 's full-speed trials on 21 November 1915 and gave a top speed of 24.1 knots. Twenty-five Yarrow
Yarrow Shipbuilders
Yarrow Limited , often styled as simply Yarrows, was a major shipbuilding firm based in the Scotstoun district of Glasgow on the River Clyde...

 Admiralty-type small-tube boilers
Water-tube boiler
A water tube boiler is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating tubes...

 provided steam to the engines at a designed working pressure of 17.5 atm (1,773 kPa; 257 psi). Each boiler was fitted with Thornycroft
John I. Thornycroft & Company
John I. Thornycroft & Company Limited, usually known simply as Thornycroft was a British shipbuilding firm started by John Isaac Thornycroft in the 19th century.-History:...

 oil sprayers for mixed oil/coal burning. They were arranged in two groups. The forward group consisted of two boiler rooms in front of the second turret, the foremost of which had three boilers while the second one had six. The rear group was between the second and third turrets and comprised two compartments, each with eight boilers. At full load they carried 1847.5 long tons (1,877.2 MT) of coal and 700 long tons (711.2 MT) of fuel oil
Fuel oil
Fuel oil is a fraction obtained from petroleum distillation, either as a distillate or a residue. Broadly speaking, fuel oil is any liquid petroleum product that is burned in a furnace or boiler for the generation of heat or used in an engine for the generation of power, except oils having a flash...

 and that provided her a range of 3500 nautical miles (6,482 km) at a speed of 10 knots (19.6 km/h).

Armament

The main armament consisted of a dozen Obukhovskii 12 inches (305 mm) Pattern 1907 52-caliber guns mounted in four electrically powered triple turrets. The guns could be depressed to −5° and elevated to 25°. They could be loaded at any angle between −5° and +15°; their rate of fire was one round every 30 to 40 seconds up to 15° of elevation and one round per minute above that. The forward turret had an arc of fire of 330°, the second turret had a total of 280°, the third turret 310° and the aft turret 300°. They could elevate at 3–4° per second and traverse at a rate of 3.2° per second. 100 rounds per gun were carried at full load. The guns fired 470.9 kilograms (1,038.2 lb) projectiles at a muzzle velocity
Muzzle velocity
Muzzle velocity is the speed a projectile has at the moment it leaves the muzzle of the gun. Muzzle velocities range from approximately to in black powder muskets , to more than in modern rifles with high-performance cartridges such as the .220 Swift and .204 Ruger, all the way to for tank guns...

 of 762 m/s (2,500 ft/s); this provided a maximum range of 23230 metres (25,404.6 yd).

Sixteen manually operated 4.7-inch (120 mm) 50-caliber Pattern 1905 guns were mounted in the hull 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 as the secondary battery intended to defend the ship against torpedo boats. Because of the lack of freeboard and bow-heavy trim the forward casemates were often washed out in even moderate seas. All guns had a firing arc of 125°–30° and at least four could bear on any part of the horizon. Their maximum elevation was 25° and they could elevate at 3.5° per second. They could traverse at six to eight degrees per second. 300 rounds per gun were provided which was increased from 245 rounds during construction. As designed they were 15 feet (4.6 m) above the waterline, but this was reduced in service as they were overweight. They had a rate of fire was seven rounds per minute and a maximum range of about 16800 yards (15,362 m) at 25° elevation with a 63.87 pounds (29 kg) semi-armor-piercing
Armor-piercing shot and shell
An armor-piercing shell is a type of ammunition designed to penetrate armor. From the 1860s to 1950s, a major application of armor-piercing projectiles was to defeat the thick armor carried on many warships. From the 1920s onwards, armor-piercing weapons were required for anti-tank missions...

 Model 1911 shell at a muzzle velocity of 792.5 m/s (2,600.1 ft/s).

The Gangut-class ships were completed with only a single 3 inches (8 cm) 30-caliber Lender anti-aircraft
Anti-aircraft warfare
NATO defines air defence as "all measures designed to nullify or reduce the effectiveness of hostile air action." They include ground and air based weapon systems, associated sensor systems, command and control arrangements and passive measures. It may be to protect naval, ground and air forces...

 (AA) gun mounted on the quarterdeck. This had a maximum depression of 5° and a maximum elevation of 65°. It fired a 14.33 pounds (6.5 kg) shell at a muzzle velocity of 1929 ft/s (588 m/s). It had a rate of fire of 10–12 rounds per minute and had a maximum ceiling of 19000 ft (5,791.2 m). Other AA guns were probably added during the course of World War I, but details are lacking, although Conway's says that four 75 millimetres (3 in) guns were added to the roofs of the end turrets during the war. Four 17.7 inches (450 mm) submerged torpedo tube
Torpedo tube
A torpedo tube is a device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units installed aboard surface vessels...

s were mounted with three 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 for each tube.

Fire control

Two Zeiss 5 metres (16.4 ft) rangefinder
Rangefinder
A rangefinder is a device that measures distance from the observer to a target, for the purposes of surveying, determining focus in photography, or accurately aiming a weapon. Some devices use active methods to measure ; others measure distance using trigonometry...

s were fitted on the conning towers and there was also a 4.5 feet (1.4 m) Barr & Stroud
Barr and Stroud
Barr & Stroud Limited was a pioneering Scottish optical engineering firm, based in Glasgow, that played a leading role in the development of modern optics, including rangefinders, for the Royal Navy and for other branches of British Armed Forces during the 20th century...

 instrument, possibly for precise stationkeeping on the master ship when concentrating fire. Two Krylov stadimeter
Stadimeter
-Overview:A stadimeter is an optical device for estimating the range to an object of known height by measuring the angle between the top and bottom of the object as observed at the device. It is similar to a sextant, in that the device is using mirrors to measure an angle between two objects but...

s were situated in the lower level of the forward conning tower. These would provide data for the central artillery post to calculate with its imported Pollen Argo Mark V Clock, a mechanical fire-control computer, and then transmit the gun commands via the Geisler transmission system for the gun crew to follow. During the winter of 1915–16 the Zeiss rangefinders were transferred to armored hoods on the rear of the fore and aft turrets and, at some point, 18 feet (5.5 m) Barr & Stroud rangefinders were added to the roofs of the middle turrets. received a 9 feet (2.7 m) Pollen rangefinder in the spring of 1916.

Protection

The armor protection of the Gangut-class ships had to protect against two different threats as revealed during the Russo-Japanese War. Japanese high explosive shells had riddled the unarmored portions of Russian ships and had even sunk several ships with their heavy armor belts unpenetrated. The Russians decided that the entire side of the ship needed to be armored, even though this would limit the thickness of the main belt. They developed a system where the outer armor would break up or at least slow shells down and burst immediately behind the outer armor and an inboard armor bulkhead would stop the splinters and shell fragments from reaching the vitals. This system likely would have worked against the German and British armor-piercing shells that performed so badly 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...

, but would have failed against the improved shells introduced afterwards with their redesigned fuses. A related weakness was that the turrets and conning towers lacked the inboard splinter bulkhead even though they used armor thickness roughly equivalent to that of the main belt.

The waterline belt
Belt armor
Belt armor is a layer of heavy metal armor plated on to or within outer hulls of warships, typically on battleships, battlecruisers and cruisers, and on aircraft carriers converted from those types of ships....

, made of Krupp cemented armor (KCA), had a maximum thickness of 225 millimetres (8.9 in), but tapered to about 150 mm (5.9 in) on its bottom edge. It was 117.2 metres (384.5 ft) long and had a total height of 5 metres (16 ft), 3.26 metres (10.7 ft) of which was above the design waterline and 1.74 metres (5.7 ft) below. However, the ship's draft was almost 50 centimetre deeper than intended, which meant that much less was above water. The remaining portion of the waterline was protected by 125 millimetres (4.9 in) plates. The upper belt, which protected the casemates, was 125 mm of KCA over the citadel and 2.72 metres (8.9 ft) high. It thinned to a thickness of 75 millimetres (3 in) forward of the citadel. The area aft of the citadel was the only unprotected section of the hull. 3.4 metres (11.2 ft) inboard of the side was a longitudinal splinter bulkhead made of Krupp non-cemented armor (KNC). It was 50 mm (2 in) thick at the level of the main belt, but thinned to 37.55 mm (1.5 in) behind the upper belt. The main deck sloped from the bulkhead to the lower edge of the waterline belt and consisted of a 50-mm KNC plate on a 12 mm (0.47244094488189 in) mild steel plate. This space was used as a coal bunker, which added extra protection. The main belt was closed off by 100 mm (3.9 in) transverse bulkheads fore and aft and the steering gear was protected by armor 100–125 mm thick.

The main gun turrets had a KCA face and sides 203 mm (8 in) thick with a 100-mm roof. The guns had 3-inch gun shields to protect against splinters entering the embrasures and they were separated by splinter bulkheads. The barbettes were 150 mm thick above the upper deck, but reduced to 75 mm behind other armor, except for the fore and aft barbettes which only thinned to 125 mm. The conning tower sides were 254 mm (10 in) thick with a 100-mm roof. The 120-mm guns had their own individual 3-inch gun shield
Gun shield
thumb|A [[United States Marine Corps|U.S. Marine]] manning an [[M240 machine gun]] equipped with a gun shieldA gun shield is a flat piece or section of armor designed to be mounted on a crew-served weapon such as a machine gun or artillery piece, or, more rarely, to be used with an assault rifle...

s. The funnel uptakes were protected by 22 mm (0.866141732283465 in) of armor. The upper deck
Deck (ship)
A deck is a permanent covering over a compartment or a hull of a ship. On a boat or ship, the primary deck is the horizontal structure which forms the 'roof' for the hull, which both strengthens the hull and serves as the primary working surface...

 was 37.5 mm (1.5 in) of nickel-chrome steel and the middle deck was 25 mm (0.984251968503937 in) of nickel-chrome steel between the longitudinal splinter bulkheads, but thinned to 19 mm (0.748031496062992 in) outside of them. The lower deck was of 12 mm (0.47244094488189 in) mild steel.

Underwater protection was minimal as there was only a single watertight bulkhead, presumably of high-tensile steel, behind the upwards extension of the double bottom. This was an extension of the splinter bulkhead and was also 3.4 meters inboard. A more comprehensive system was considered early in the design process but rejected because it would have cost some 500 tonne.

The armor scheme of the Gangut-class ships had some significant weaknesses. The rear transverse bulkhead was unprotected by any other armor but was the same thickness as the forward bulkhead which was defended by the upper belt armor. The thinness of the barbette armor was a serious defect which could have proved fatal in a battle. And the lack of a splinter bulkhead behind the armor of the turrets, barbettes and conning towers left all of those locations vulnerable to main gun hits. But the biggest weakness was the lack of an anti-torpedo bulkhead, which made them highly vulnerable to mines
Naval mine
A naval mine is a self-contained explosive device placed in water to destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, an enemy vessel...

 or 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.

Construction

All four ships were laid down on 16 June 1909, but this was just a ceremonial event as actual work did not begin until September–October. One major complication was that the design for the turrets and their magazines was not completed when construction began so their weights and dimensions had to be estimated. The machinery for these ships was built by either the Baltic Works or the Franco-Russian Works as the New Admiralty Shipyard lacked its own engine shop. Construction was initially very slow because the Duma did not allocate any money for these ships until May 1911. Initial funding was taken from other budget items or the emperor's discretionary fund and the shipyards had to use their own money to keep the work going. They were enormously expensive with their cost estimated at 29.4 million rubles each, including armament. By way of comparison the preceding class of pre-dreadnoughts had only cost 11 million rubles each. Once the Duma provided the funding the pace of work accelerated and the ships were launched later that year, although delays in the delivery of engines and turrets hindered their completion. All of the ships completed abbreviated trials by the end of 1914 and reached the fleet in December 1914 – January 1915.

Ships

Ship Builder Namesake Renamed Laid down Launched Commissioned
(Гангут) Admiralty Shipyard
Admiralty Shipyard
The Admiralty Shipyard is one of the oldest and largest shipyards in Russia, located in Saint Petersburg. The shipyard's building ways can accommodate ships of up to , 250 meters in length and 35 meters in width...

, Saint Petersburg
Saint Petersburg
Saint Petersburg is a city and a federal subject of Russia located on the Neva River at the head of the Gulf of Finland on the Baltic Sea...

Battle of Gangut
Battle of Gangut
The Battle of Gangut took place on July 27Jul./ August 7, 1714Greg. during the Great Northern War , in the waters of Riilahti Bay, north of the Hanko Peninsula, near the site of the modern-day city of Hanko, Finland, between the Swedish Navy and Imperial Russian Navy...

, 1714
Oktyabrskaya Revolyutsiya 27 June 1925 16 June 1909 20 October 1911 11 January 1915
(Петропавловск) Baltic Yard, Saint Petersburg Siege of Petropavlovsk
Siege of Petropavlovsk
The Siege of Petropavlovsk was the main operation on the Pacific Theatre of the Crimean War. The Russian casualties are estimated at 100 soldiers; the Allies lost five times as many....

, 1854
Marat 31 March 1921 22 September 1911 5 January 1915
(Севастополь) Baltic Yard, Saint Petersburg Siege of Sevastopol (1854–1855) Parizhskaya Kommuna 31 March 1921 10 July 1911 30 November 1914
(Полтава) Admiralty Shipyard, Saint Petersburg Battle of Poltava, 1709 Frunze 7 January 1926 23 July 1911 30 December 1914

World War I

All four of the Ganguts were assigned to the First Battleship Brigade of the Baltic Fleet
Baltic Fleet
The Twice Red Banner Baltic Fleet - is the Russian Navy's presence in the Baltic Sea. In previous historical periods, it has been part of the navy of Imperial Russia and later the Soviet Union. The Fleet gained the 'Twice Red Banner' appellation during the Soviet period, indicating two awards of...

 in December 1914 – January 1915 when they reached Helsingfors
Helsinki
Helsinki is the capital and largest city in Finland. It is in the region of Uusimaa, located in southern Finland, on the shore of the Gulf of Finland, an arm of the Baltic Sea. The population of the city of Helsinki is , making it by far the most populous municipality in Finland. Helsinki is...

. Their turrets and fire-control systems, however, were still being adjusted and fine-tuned through the next spring. Their role was to defend the mouth of the Gulf of Finland
Gulf of Finland
The Gulf of Finland is the easternmost arm of the Baltic Sea. It extends between Finland and Estonia all the way to Saint Petersburg in Russia, where the river Neva drains into it. Other major cities around the gulf include Helsinki and Tallinn...

 against the Germans, who never tried to enter, so they spent their time training with occasional sorties into the Baltic. Several ships ran aground in 1915 and 1916, often while providing cover for minelaying operations, but only Sebastopol suffered any significant damage. A minor mutiny
Mutiny
Mutiny is a conspiracy among members of a group of similarly situated individuals to openly oppose, change or overthrow an authority to which they are subject...

 broke out on 1 November on board Gangut when the executive officer refused to feed the crew the traditional meal of meat and macaroni
Macaroni
Macaroni is a variety of moderately extended, machine-made, dry pasta made with durum wheat. Macaroni noodles do not contain eggs, and are normally cut in short, hollow shapes; however, the term refers not to the shape of the pasta, but to the kind of dough from which the noodle is made...

 after coaling. The crews of the battleships joined the general mutiny of the Baltic Fleet on 16 March 1917, after the idle sailors received word of the February Revolution
February Revolution
The February Revolution of 1917 was the first of two revolutions in Russia in 1917. Centered around the then capital Petrograd in March . Its immediate result was the abdication of Tsar Nicholas II, the end of the Romanov dynasty, and the end of the Russian Empire...

 in Saint Petersburg. The Treaty of Brest-Litovsk
Treaty of Brest-Litovsk
The Treaty of Brest-Litovsk was a peace treaty signed on March 3, 1918, mediated by South African Andrik Fuller, at Brest-Litovsk between Russia and the Central Powers, headed by Germany, marking Russia's exit from World War I.While the treaty was practically obsolete before the end of the year,...

 required the Soviets to evacuate their base at Helsinki in March 1918 or have them interned by newly independent Finland
Finland
Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

 even though the Gulf of Finland was still frozen over. Gangut and her sisters led the first group of ships on 12 March and reached Kronstadt
Kronstadt
Kronstadt , also spelled Kronshtadt, Cronstadt |crown]]" and Stadt for "city"); is a municipal town in Kronshtadtsky District of the federal city of St. Petersburg, Russia, located on Kotlin Island, west of Saint Petersburg proper near the head of the Gulf of Finland. Population: It is also...

 five days later in what became known as the 'Ice Voyage'
Ice Cruise of the Baltic Fleet
Ice Cruise of the Baltic Fleet was an operation which transferred the ships of the Baltic Fleet of the Imperial Russian Navy from their bases at Tallinn and Helsinki to Kronstadt in 1918, caused by the possible threat to those bases from the final German offensives against Russia during World War...

.

Russian Civil War and interwar period

All of the dreadnoughts except for Petropavlovsk were laid up
Reserve fleet
A reserve fleet is a collection of naval vessels of all types that are fully equipped for service but are not currently needed, and thus partially or fully decommissioned. A reserve fleet is informally said to be "in mothballs" or "mothballed"; an equivalent expression in unofficial modern U.S....

 in October–November 1918 for lack of manpower. She bombarded the rebellious garrison of Fort Krasnaya Gorka
Krasnaya Gorka fort
Krasnaya Gorka is a coastal artillery fortress west of Lomonosov, Russia on the southern shore of the Gulf of Finland, opposite Kotlin Island and the Baltic Fleet's base at Kronshtadt...

 in 1919 and supported Bolshevik
Bolshevik
The Bolsheviks, originally also Bolshevists , derived from bol'shinstvo, "majority") were a faction of the Marxist Russian Social Democratic Labour Party which split apart from the Menshevik faction at the Second Party Congress in 1903....

 light forces operating against British ships supporting the White Russians
White movement
The White movement and its military arm the White Army - known as the White Guard or the Whites - was a loose confederation of Anti-Communist forces.The movement comprised one of the politico-military Russian forces who fought...

 in the Gulf of Finland
Gulf of Finland
The Gulf of Finland is the easternmost arm of the Baltic Sea. It extends between Finland and Estonia all the way to Saint Petersburg in Russia, where the river Neva drains into it. Other major cities around the gulf include Helsinki and Tallinn...

. On 17 August 1919 Petropavlovsk was claimed as torpedoed and put out of action by the British Coastal Motor Boat
Coastal Motor Boat
During the First World War, following a suggestion from three junior officers of the Harwich destroyer force that small motor boats carrying a torpedo might be capable of travelling over the protective minefields and attacking ships of the German Navy at anchor in their bases, the Admiralty gave...

 CMB 88 in Kronstadt harbor, but was, in fact, not damaged at all. On 24 November 1919 a fire broke out in Poltavas forward boiler room and gutted much of her interior; she was never repaired although numerous proposals were made to reconstruct her. The crews of Sevastopol and Petropavlovsk joined the Kronstadt Rebellion
Kronstadt rebellion
The Kronstadt rebellion was one of many major unsuccessful left-wing uprisings against the Bolsheviks in the aftermath of the Russian Civil War...

 of 1921 and they were renamed Parizhskaya Kommuna and Marat respectively after the rebellion was crushed to commemorate the Paris Commune
Paris Commune
The Paris Commune was a government that briefly ruled Paris from March 18 to May 28, 1871. It existed before the split between anarchists and Marxists had taken place, and it is hailed by both groups as the first assumption of power by the working class during the Industrial Revolution...

 and to erase their 'betrayal' of the Communist Party
Communist Party of the Soviet Union
The Communist Party of the Soviet Union was the only legal, ruling political party in the Soviet Union and one of the largest communist organizations in the world...

. The two undamaged ships were recommissioned in 1925–26 and all the ships were given proper revolutionary names.

The initial attempts to return Frunze to service were to restore her to original design, but money ran out before she was even half completed. Subsequent plans that focused on reconstructing her as a modernized equivalent to her sisters or even as a battlecruiser
Battlecruiser
Battlecruisers were large capital ships built in the first half of the 20th century. They were developed in the first decade of the century as the successor to the armoured cruiser, but their evolution was more closely linked to that of the dreadnought battleship...

, with one turret deleted to save weight, were considered, but finally abandoned on 23 January 1935 when all work was stopped.
Parizhskaya Kommuna was refitted in 1928 in preparation for her transfer to the Black Sea Fleet the next year and she was given an open-topped false bow to improve her sea-keeping ability. However, while enroute through the Bay of Biscay
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 Brest south to the Spanish border, and the northern coast of Spain west to Cape Ortegal, and is named in English after the province of Biscay, in the Spanish...

, she was caught in a heavy storm that damaged the bow and she was forced to put into Brest
Brest, France
Brest is a city in the Finistère department in Brittany in northwestern France. Located in a sheltered position not far from the western tip of the Breton peninsula, and the western extremity of metropolitan France, Brest is an important harbour and the second French military port after Toulon...

 for repairs. Marat was the first of the class to be reconstructed between 1928 and 8 April 1931. Her superstructure was enlarged, her guns were replaced, the turrets overhauled, the anti-aircraft armament augmented and the fire-control equipment modernized. Her boilers were converted to burn only fuel oil
Fuel oil
Fuel oil is a fraction obtained from petroleum distillation, either as a distillate or a residue. Broadly speaking, fuel oil is any liquid petroleum product that is burned in a furnace or boiler for the generation of heat or used in an engine for the generation of power, except oils having a flash...

 and this produced enough steam that the forward three boilers could be removed and the boiler room was turned into anti-aircraft magazine
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:...

s and control spaces. The forward funnel was angled to the rear and extended to try and keep the exhaust out of the gunnery spaces and the bridge. She was also given a false bow, but hers had a solid top that turned it into a 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...

. Oktyabrskaya Revolyutsiya was the next ship to rebuilt and profited from the experiences of her sister's modernization between 1931 and 1934. All twenty-five of her old boilers were replaced by a dozen oil-fired boilers originally intended for the Izmail. The space saved was used to add another inboard longitudinal watertight bulkhead that greatly improved her underwater protection. The rest of her modernization was along the same lines as Marats, except that the latter's tubular foremast was replaced by a sturdier semi-conical mast, a new aft structure was built in front of the rear conning tower which caused the mainmast to be moved forward, her forward funnel was curved to the rear to better keep the bridge clear of exhaust gases and the thickness of her turret roofs was increased to 152 millimetres (6 in). Parizhskaya Kommuna began her two-stage reconstruction in 1933 along the lines of Oktyabrskaya Revolyutsiyas modernization. Major differences were that her guns and turrets were improved to increase their rate of fire to about two rounds per minutes and to extend their range, she was the first ship of the class to receive light anti-aircraft guns and her forward funnel was given a more sinuous curve to direct its exhaust gases away from the forward superstructure. She completed these alterations in 1938, but was returned to the dockyard from December 1939 through July 1940 to receive a new armored deck and anti-torpedo bulge
Anti-torpedo bulge
The anti-torpedo bulge is a form of passive defence against naval torpedoes that featured in warship construction in the period between the First and Second World Wars.-Theory and form:...

s which cured her stability problems and greatly increased her underwater protection at a modest cost in speed.

Baltic Fleet

The participation of Marat and Oktyabrskaya Revolyutsiya in the Winter War
Naval warfare in the Winter War
The Naval warfare in the Winter War was the naval part of the Winter War between Finland and the Soviet Union from 30 November 1939 to 13 March 1940. Overall, the level of naval activity was low. However, Finland had coastal artillery batteries which took part of battles along its coast.-Navies in...

 was limited to a bombardment of Finnish coastal artillery
Coastal artillery
Coastal artillery is the branch of armed forces concerned with operating anti-ship artillery or fixed gun batteries in coastal fortifications....

 in December 1939 at Saarenpää in the Beryozovye Islands
Beryozovye Islands
Beryozovye Islands , alternatively spelled Berezovye Islands, is an island group in Leningrad Oblast, Russia. The islands are situated at the bottom of the Gulf of Finland, just outside the town of Primorsk on the Karelian Isthmus....

 before the Gulf of Finland iced over. They failed to inflict any permanent damage before being driven off by near misses. Both ships had their anti-aircraft armament modernized and reinforced over the winter of 1939–40 and were transferred to Tallinn
Tallinn
Tallinn is the capital and largest city of Estonia. It occupies an area of with a population of 414,940. It is situated on the northern coast of the country, on the banks of the Gulf of Finland, south of Helsinki, east of Stockholm and west of Saint Petersburg. Tallinn's Old Town is in the list...

 shortly after the Soviets occupied Estonia in 1940. Oktyabrskaya Revolyutsiya received more AA guns in February–March 1941. Parizhskaya Kommuna received a more modest number of AA guns while she was receiving her bulges, but landed four 120-mm guns right before the Germans invaded.

On 22 June 1941, the Germans attacked the Soviet Union under the codename of Operation Barbarossa
Operation Barbarossa
Operation Barbarossa was the code name for Germany's invasion of the Soviet Union during World War II that began on 22 June 1941. Over 4.5 million troops of the Axis powers invaded the USSR along a front., the largest invasion in the history of warfare...

; on that date Marat was in Kronstadt and Oktyabrskaya Revolyutsiya was in Tallinn. The latter was soon forced to fall back to Kronstadt by the speed of the German advance and neither of the Baltic Fleet dreadnoughts participated in combat until 8 September when they fired on troops of the German 18th Army from positions near Kronstadt and Leningrad. Marat was lightly damaged by German 15 centimetres (5.9 in) guns on 16 September and had her bow blown off on 23 September by two bomb hits. One of which was claimed by Lieutenant
Second Lieutenant
Second lieutenant is a junior commissioned officer military rank in many armed forces.- United Kingdom and Commonwealth :The rank second lieutenant was introduced throughout the British Army in 1871 to replace the rank of ensign , although it had long been used in the Royal Artillery, Royal...

 Hans-Ulrich Rudel
Hans-Ulrich Rudel
Hans-Ulrich Rudel was a Stuka dive-bomber pilot during World War II and a member of the Nazi party. The most highly decorated German serviceman of the war, Rudel was one of only 27 military men to be awarded the Knight's Cross of the Iron Cross with Oak Leaves, Swords and Diamonds, and the only...

 of III./StG 2
Sturzkampfgeschwader 2
Sturzkampfgeschwader 2 Immelmann was a Luftwaffe Dive bomber-wing of World War II. It was named after Max Immelmann in 1939.The unit was originally formed as Fliegergruppe Schwerin in 1934; the first Stuka wing of its type, attaining the sobriquet 'Immelmann' in 1935...

 flying a Junkers Ju 87
Junkers Ju 87
The Junkers Ju 87 or Stuka was a two-man German ground-attack aircraft...

B 'Stuka', that detonated her forward magazine. She sank in the shallow water from progressive flooding, but was raised and used as a floating artillery battery for the rest of the war using two, and later, three of her gun turrets. Marat reverted to her original name on 31 May 1943. Oktyabrskaya Revolyutsiya was badly damaged on 21 September 1941 by three bomb hits on her bow that knocked out two of her turrets. She was sent for repairs at the Ordzhonikidze Yard
Baltic Shipyard
The Baltic Shipyard is one of the oldest shipyards in Russia. It is located in Saint Petersburg in the south-western part of the Vasilievsky Island. It is one of the three shipyards active in Saint Petersburg...

 on 23 October, although she was hit by more bombs on two different occasions while under repair until November 1942. Her AA armament was further reinforced during this period and Oktyabrskaya Revolyutsiya returned to her mission of providing fire support during the Siege of Leningrad
Siege of Leningrad
The Siege of Leningrad, also known as the Leningrad Blockade was a prolonged military operation resulting from the failure of the German Army Group North to capture Leningrad, now known as Saint Petersburg, in the Eastern Front theatre of World War II. It started on 8 September 1941, when the last...

, the Leningrad–Novgorod Offensive
Leningrad–Novgorod Offensive
The Leningrad-Novgorod strategic offensive, also known as the Krasnoye Selo–Ropsha Offensive during World War II was launched by the Red Army on with an attack on the German Army Group North by the Soviet 2nd Pribaltiysky, Volkhov and Leningrad army fronts...

 in January 1944 and the Vyborg–Petrozavodsk Offensive in June 1944. She was the last Soviet battleship to fire shots in anger
Fire in anger
"Fire in anger" is a phrase used in military contexts to describe the use of a projectile weapon to deliberately cause damage or harm to an opponent, as opposed to training exercises or warning shots. For example, Napier of Magdala Battery "never fired a shot in anger"; the battery never engaged in...

 on 9 June 1944 during the latter offensive. On 22 July 1944, the ship was awarded the Order of the Red Banner
Order of the Red Banner
The Soviet government of Russia established the Order of the Red Banner , a military decoration, on September 16, 1918 during the Russian Civil War...

. Oktyabrskaya Revolyutsiya received a Lend-Lease
Lend-Lease
Lend-Lease was the program under which the United States of America supplied the United Kingdom, the Soviet Union, China, Free France, and other Allied nations with materiel between 1941 and 1945. It was signed into law on March 11, 1941, a year and a half after the outbreak of war in Europe in...

 British Type 279 air-warning radar sometime during 1944.

During the late 1930s Frunze was used as a barracks hulk
Hulk (ship)
A hulk is a ship that is afloat, but incapable of going to sea. Although sometimes used to describe a ship that has been launched but not completed, the term most often refers to an old ship that has had its rigging or internal equipment removed, retaining only its flotational qualities...

 while she was stripped for parts, until she was formally discarded 1 December 1940, after scrapping had already begun at a leisurely pace. After the German invasion she was towed to Kronstadt and run aground in late July 1941 near the Leningrad Sea Canal. During the Siege of Leningrad
Siege of Leningrad
The Siege of Leningrad, also known as the Leningrad Blockade was a prolonged military operation resulting from the failure of the German Army Group North to capture Leningrad, now known as Saint Petersburg, in the Eastern Front theatre of World War II. It started on 8 September 1941, when the last...

 her hull was used as a base for small ships. Frunze raised on 31 May 1944, towed to Leningrad
Saint Petersburg
Saint Petersburg is a city and a federal subject of Russia located on the Neva River at the head of the Gulf of Finland on the Baltic Sea...

 and scrapped beginning in 1949.

Black Sea Fleet

Parizhskaya Kommuna was in Sevastopol and remained until 30 October 1941 when she was evacuated to Novorossiysk
Novorossiysk
Novorossiysk is a city in Krasnodar Krai, Russia. It is the country's main port on the Black Sea and the leading Russian port for importing grain. It is one of the few cities honored with the title of the Hero City. Population: -History:...

 after the Germans had breached Soviet defensive lines near the Perekop Isthmus
Isthmus of Perekop
The Isthmus of Perekop is the narrow, 5-7 km wide strip of land that connects the peninsula of Crimea to the mainland of Ukraine. The isthmus is located between the Black Sea to the west and the Azov Sea the east. The isthmus takes its name from the Tatar fortress of Perekop.The border between the...

. The ship fired her first shots of the war on 28–29 November when she bombarded German and Romanian troops south of Sevastopol. Parizhskaya Kommuna made one evacuation run to Sevastopol on 29 December, bombarding German troops on her arrival, but spent most of her time supporting troops during the Kerch Offensive in January–March 1942. She fired her last shots of the war at targets near Feodosiya during the nights of 20–22 March 1942 before returning to Poti
Poti
Poti is a port city in Georgia, located on the eastern Black Sea coast in the region of Samegrelo-Zemo Svaneti in the west of the country. Built near the site of the ancient Greek colony of Phasis, the city has become a major port city and industrial center since the early 20th century. It is also...

 to have her worn-out 12-inch guns relined. By the time this was finished the Soviets were unwilling to expose such a prominent ship to German air attacks, which had already sunk a number of cruisers and destroyers. She returned to her original name on 31 May 1943, but remained in Poti
Poti
Poti is a port city in Georgia, located on the eastern Black Sea coast in the region of Samegrelo-Zemo Svaneti in the west of the country. Built near the site of the ancient Greek colony of Phasis, the city has become a major port city and industrial center since the early 20th century. It is also...

 until late 1944 when she led the surviving major units of the Black Sea Fleet
Black Sea Fleet
The Black Sea Fleet is a large operational-strategic sub-unit of the Russian Navy, operating in the Black Sea and the Mediterranean Sea since the late 18th century. It is based in various harbors of the Black Sea and the Sea of Azov....

 back to Sevastopol on 5 November. British Type 290 and 291 air-warning radars were fitted during the war. Sevastopol was awarded the Order of the Red Banner on 8 July 1945.

Postwar

Sevastopol and Oktyabrskaya Revolyutsiya remained on the active list after the end of the war although little is known of their activities. Both were reclassified as 'school battleships' (uchebnyi lineinyi korabl) on 24 July 1954 and stricken on 17 February 1956. Their scrap
Scrap
Scrap is a term used to describe recyclable and other materials left over from every manner of product consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap has significant monetary value...

ping began that same year although Oktyabrskaya Revolyutsiyas hulk was still in existence in May 1958.

After the war there were several plans (Project 27) to reconstruct Petropavlovsk, as she was now known, using the bow of Frunze
Russian battleship Poltava (1911)
Poltava was the second of the s of the Imperial Russian Navy built before World War I. The Ganguts were the first class of Russian dreadnoughts. She was named after the Russian victory over Charles XII of Sweden in the Battle of Poltava in 1709. She was completed during the winter of 1914–15, but...

 and moving her third turret to the forward position, but they were not accepted and were formally cancelled on 29 June 1948. She was renamed Volkhov, after the nearby river
Volkhov River
Volkhov is a river in Novgorod Oblast and Leningrad Oblast in northwestern Russia.-Geography:The Volkhov flows out of Lake Ilmen north into Lake Ladoga, the largest lake of Europe. It is the second largest tributary of Lake Ladoga. It is navigable over its whole length. Discharge is highly...

, on 28 November 1950 and served as a stationary training ship until stricken on 4 September 1953 and broken up afterwards.

After World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 two of Frunzes turrets and their guns were used to rebuild Coast Defense Battery 30 (Maksim Gor'kii I) in Sevastopol
Sevastopol
Sevastopol is a city on rights of administrative division of Ukraine, located on the Black Sea coast of the Crimea peninsula. It has a population of 342,451 . Sevastopol is the second largest port in Ukraine, after the Port of Odessa....

. It remained in service with the Soviet Navy
Soviet Navy
The Soviet Navy was the naval arm of the Soviet Armed Forces. Often referred to as the Red Fleet, the Soviet Navy would have played an instrumental role in a Warsaw Pact war with NATO, where it would have attempted to prevent naval convoys from bringing reinforcements across the Atlantic Ocean...

through 1997.

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