Battlecruiser Dunkerque

French flagHistory of the French battlecruiser Dunkerque and its proper use at World of Warships.

 French battlecruiser Dunkerque in the port of Marseilles

The French battlecruiser Dunkerque in the port of Marseilles at the War Game World of Warships.

Dunkerque, Strasbourg
Type: Battlecruiser.

History

These French battlecruisers were built between 1932 and 1938. Since 1926 a replacement for the outdated Dreadnought battleships of the Courbet class was discussed, because according to the provisions of the Washington Fleet Treaty France was allowed to start building a new large battleship in 1927.
At that time, the naval staff preferred a Croiseur de Combat (light battlecruiser) and in January 1927 submitted a paper outlining a proposal for a ship that would resemble the later German pocket battleships. The ship should also be able to operate as a raider, while at the same time being fast enough to escape the contemporary battleships.

After the pocket battleships of the German class had actually appeared, the original French proposal was reconsidered. In addition, the British were now of the opinion that the displacement of large battleships should be limited to 25,000 tons, which led to major disagreements among the French over the suitable size for the new ship to be built.

A bilateral agreement was reached with the Italians that no more than two warships with a maximum of 35,000 tons each would be built for each of the two navies. This left the French and Italian navies with 70,000 tons each to build three or four more warships.

Under these circumstances, the Conseil Superieur de la Marine drew up plans for a 25,000 tons battlecruiser armed with eight 13-inch (330mm) guns and with sufficient armour to withstand the 280mm shells of the German pocket battleships.
To save weight, the eight main guns were to be mounted in two four-gun turrets at the front of the ship. This arrangement was already used on the British Nelson class battleships, but was planned by the French as early as 1914 for the Normandy class, which was later cancelled.

At the end of April 1932, the final plans were approved for a single ship known as a battleship Batiment de ligne , not as a battlecruiser Croiseur de Combat. When it became known that Mussolini had in the meantime ordered two new large battleships for the Italian Navy, funds were made available in July 1934 for the construction of another ship of the class.

Dunkerque shortly before its completion

The ‘fast battleship’ Dunkerque shortly before its completion in 1936.

The two battlecruisers Dunkerque and Strasbourg had a good speed, but their weak side armour made them second-rate class. This was evident in 1940 at Mers-el-Kebir, where the Dunkerque was pierced by British 15-inch (381mm) shells. However, the ship survived the hits much better than expected.

The theoretical superiority of dual-function secondary armament was reduced by the inherent weakness of the 5.1-inch (130mm) gun positions. In addition, the light anti-aircraft armament was particularly weak.
On the other hand its underwater protection was good and Dunkerque easily survived the hit of a 18-inch (46cm) air torpedo like the detonations of several depth-charges bombs when an armed trawler exploded next to her.

The armour was internally inclined 210 degrees, with an inner ‘curvature’ and a layer filled with ebonite mousse, a thick black rubber similar to an old cellulose layer used on French ships in the 1890s.

The Model 1933 330mm (13-inch) guns had a muzzle velocity of 2,625 ft/sec (800 metres per second) and could fire a 1,190 lb (540kg) shell 21,872 yards (20,000 metres) far. Each of the two quadruples basically consisted of two double turrets. This arrangement allowed the largest possible number of main artillery guns to be fired with minimum water displacement, but as was later shown at Mers-el-Kebir, the main artillery could be halved with a single direct hit.
By the arrangement of the two turrets on the foredeck the length of the belt armour could be shortened, but the two turrets must had to have enough distance, so that not both could be knocked-out already with a single hit. As with other types of ships with the main artillery arrangement after the bow, the smoke and muzzle pressure affected the forward firing more than to the side.

stern of the battlecruiser Dunkerque

The stern of the battlecruiser Dunkerque, with plane on catapult, hangar and secondary guns.

The Model 1935 130mm (5.1-inch) secondary guns were in three quadruple positions and two twin positions and had the same muzzle velocity as the 330mm main guns. They were able to fire a 71 lb (32.1 kg) shell at a distance of 21,653 yards (19,800 meters). Each of these barrels was theoretically capable of firing fourteen or fifteen rounds per minute. However, they moved too sluggishly for air defence purposes and their mechanics were also fragile.




The ships had an impressive engine power. Dunkerque made 30.57 knots in tests with 114,050 hp over eight hours and for two hours she even steamed with just over 31 knots at 135,585 hp. Her sister achieved slightly higher speeds in her tests and both were able to permanently maintain 20.5 knots with 25,000 hp or 28 knots with 28,000 hp.

At the stern there was a hangar for up to four reconnaissance planes. Overall, the ships were very well-balanced despite their new design and showed in practice that they could fulfil their intended purpose well.

Service

From 1938 to 1939 Dunkerque was in French home waters. From October 1939 to April 1940, the ship took part in the hunt for German raiders in the Atlantic, including the search for the pocket battleship Graf Spee. There were also escort duties for convoys. Afterwards Dunkerque and Strasbourg went to the Mediterranean.

The two ships lay on 3 July 1940 in Mers-el-Kebir near Oran, when the French fleet was attacked by the British Force H under Admiral Somerville at 16:56 hours.
The Dunkerque was hit while attempting to leave its anchorage and brought to a halt by four 15-inch (381mm) shells. Although she fired 40 rounds at HMS Hood, her fire control was not accurate enough to hit and eventually the entire power system failed. Finally she was able to drag herself under the cover fire of the Santon coastal artillery.
Two days later, Fairey Swordfish bombers from carrier HMS Ark Royal attacked and hit her with a torpedo, while Terre Neuve exploded at her side, causing further damage. A total of 150 were killed and 797 wounded on the battlecruiser.

Heavily damaged battlecruiser 'Strasbourg'

Heavily damaged battlecruiser ‘Strasbourg’ after the scuttling of the French fleet at Toulon.

Strasbourg was more fortunate because it managed to be ready for action with the help of a smokescreen and was protected by the Santon guns until it was able to leave the port. On the way she was able to avoid three more attacks from torpedo bombers with her high speed.
She reached Toulon and later received her damaged sister ship. However, both ships were scuttled on 27 November 1942, when German troops stormed the arsenal to occupy the French fleet.

The hull of Strasbourg was lifted by an Italian salvage crew under General O Giannelli and in July 1943 was nominally taken over by the Italian Navy. Later confiscated by the Germans during the Italian surrender, it was again sunk by Allied bombing in August 1944.
When the French navy took over Toulon again in 1945, it was salvaged for the second time and used for various experiments with explosives and projectiles until it was scrapped in 1955.

User: France.


Dunkerque in WoWs

Status of the information: March 2019.

The French battlecruiser Dunkerque is also available as a premium ship in Free-To-Play Wargame World of Warships.
The ship is on Tier VI, as well as the already very good and freely available French battleship Normandy or the Japanese Mutsu and can be purchased for about 5,200 doubloons or Euros 20 € at the Wargaming Shop. The author bought the Dunkerque at the last special offers on Christmas with a significant discount, so that the ship only cost him about 5 Euros.

French research tree in WoWs

The French research tree in WoWs. Dunkerque is the battleship in the third column as premium ship of the sixth row on Tier VI.

This ‘ridiculous price’ was possible because, in addition to the 20-25% discount on the actual purchase price at Christmas, World of Warships players, who had never bought anything from Wargaming after some time, also receive a special and limited special offer: If you buy a ship or any other product from the World of Warships shop, you also get free doubloons for three times the price!
As a new player to World of Warships, it is recommended that you wait for this special offer, which appears in the game’s port menu, before making any premium purchases.

 

As a premium ship, the Dunkerque offers several advantages over the freely playable standard ships of the research tree.
These include the fact that no modules have to be researched, because they are all available from the beginning. Furthermore, a premium ship brings more ‘credits’ per battle, which are needed for the purchase of new, researched ships, additional modules, etc..
At the same time more ‘free research points’ are earned, which can be invested in exploring any ship. It is also important that you can transfer any captain from ships of the same nation to the premium ship, where he will be promoted faster, without any cost or loss of experience. Last but not least, the ship also has a special camouflage paint, which brings advantages in combat and economy.

Dunkerque is for the author personally one of his most successful ships in World of Warships. After about 70 battles with more than 80 sunken ships there is a victory rate of 56% and more than two sinks for every loss of the Dunkerque !
The average performance of the Dunkerque players in World of Warships, however, is currently only about 0.83 sinks per battle and 1.3 sinks per loss with a victory rate of 52%.

This is why Dunkerque requires a very idiosyncratic playing style to be successful, as all eight main guns of the ship are mounted on the foredeck. These are very accurate, have a large firing range, which can be further increased by using reconnaissance planes.

The ship is also very sensitive to hits into the broadside, but most of the shells bounce off while on a direct course to the enemy at a slight angle. For this reason it is advisable to always aim with your bow directly at the enemy and to fire with the eight front main guns – at distances of over 10 kilometres with HE explosive shells and below with AP armor-piercing shells.
The advantage of this is also that most other battleships can fire with a comparable number of guns only when approaching with the broadside, whereby they must offer Dunkerque a sensitive target. Therefore, this French battlecruiser is usually superior in a battle against one or two enemies moving behind each other: by its larger number of guns on the foredeck and by the better armour protection at the bow, which leads to the rebound of many enemy shells.

However, the time of the attack with the Dunkerque is decisive. Because if other enemy ships can shoot Dunkerque into her broadside at this moment, the end is quickly foreseeable.
Therefore, at the beginning of the battle it is advisable to wait for the further course from the cover of an island and from there to fire enemy ships at a great distance with the help of the reconnaissance plane and explosive shells.

modules for Dunkerque

Expansion of modules for Dunkerque.

In order to be able to manoeuvre better on the islands and to avoid enemy torpedoes or artillery salvos when attacking later, it is recommended to install the ‘Steering Gear Modification 2’ at Dunkerque. Also important is the ‘Main Armaments Modification 1’ module to minimise the risk of the turrets with the main guns behind the bow being out of action during the attack. Because if the main artillery in only two turrets fails or is completely switched off, your own attack can hardly be successful.
Therefore Dunkerque is best equipped with modules in this order from left to right: Main Armaments Modification 1, Damage Control System Modification 1, Aiming System Modification 1 and Steering Gear Modification 2.

 

Captain's skill points for Dunkerque

Captain’s skill points for Dunkerque

As captain for the Dunkerque, the author uses Charles-Henri Honore from the Arsenal with the following features: Preventive maintenance in row one, Expert Marksman and Adrenaline Rush in row two, Demolition Expert on row three, and Advanced Fire Training on four, which required upgrading from the original ten to twelve skill points.
The next four skill points are planned for Concealment Expert, so Dunkerque can’t continue to be discovered at such great distances from the enemy, which is one of their main drawbacks.

button go If you are new to World of Warships, you can download the free game client here!


Video of an action with the battlecruiser Dunkerque in WoWs

Further information:

The player statistics for ships in World of Warships can be found here:
Warship Statistics.

The specifications and features of the Dunkerque in World of Warships are here:
Dunkerque – French Premium Tier VI battleship.

An alternative review about the Dunkerque can be found here:
Little White Mouse.

Download WoWs


Specifications Dunkerque

Specifications
Dunkerque Specification
Type Battlecruiser
Displacement (full load) 31,400 tons
Length at waterline 686 ft (209.1 m)
Length over everything 703 ft 9 in (214.5 m)
Beam 101 ft 11 in (31.08 m)
Draught 31 ft 6 in (9.60 m)
Boiler 6 x Indret water tube boiler
Machinery Parson 4-shaft geared steam turbines
Power 112,500 – 114,000 hp
Oil 6,600 t
Speed 29.5 kts (max 30.57 kts)
Range 7,500 sm at 15 kts
Crew 1,381
Armament
Dunkerque Specification
Main Armament 8 x 13 inch (330 mm) L/52 guns
Secondary Armament 16 x 5.1 inch (130 mm) L/45
Anti-aircraft guns 8 x 1.46 inch (37 mm); 32 x 13.2mm MGs
Torpedo tubes
Aircrafts 4
Armour Protection
Dunkerque thickness
Side (belt) 145 – 245 mm
Main deck 138 mm
Lower deck 50 mm
Main artillery 254 – 330 mm
Babette 120 mm and 345 mm
Secondary artillery 80 – 90 mm
Service Statistics
Figures Dunkerque Strasbourg
Laid down 26 Dec 1932 25 Nov 1934
Launched 2 Oct 1935 12 Dec 1936
Completed 1 May 1937 Dec 1938
Fate heavy damage 27 Nov 1942; scrapped 1958 scuttled 27 Nov 1942; scrapped 1955

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