Iron Duke

13.3

Iron Duke

Battleship | U.K. | Tier V

Tech Tree Position

stock

 top

General

Research price13000 exp

Purchase price1,600,000

Hit Points41,200

Main Battery

343 mm/45 Mk.V on a Mk.II** mount5 х 2 pcs.

Rate of Fire2 shots/min.

Reload Time30 sec.

Rotation Speed2.5 deg./sec.

180 Degree Turn Time72 sec.

Firing Range15.27 km.

Maximum Dispersion227 m.

HE Shell343 mm HE Mk III

Maximum HE Shell Damage5,900

Chance of Fire on Target Caused by HE Shell40 %

Initial HE Shell Velocity759 m./s.

HE Shell Weight635 kg.

AP Shell343 mm AP Mk Ia

Maximum AP Shell Damage9,900

Initial AP Shell Velocity759 m./s.

AP Shell Weight635 kg.

Secondary Armament #1

102 mm/45 QF Mk.XVI on a Mk.XIX mount2 х 2 pcs.

Firing Range4.3 km.

Rate of Fire20 shots/min.

Reload Time3 sec.

HE Shell102 mm HE 35 lb

Maximum HE Shell Damage1,500

Initial HE Shell Velocity811 m./s.

Chance of Fire on Target Caused by HE Shell6 %

Secondary Armament #2

152 mm/50 BL Mk.VII/XII on a PVIII/PIX mount12 х 1 pcs.

Firing Range4.3 km.

Rate of Fire6.98 shots/min.

Reload Time8.6 sec.

HE Shell152 mm HE 4crh

Maximum HE Shell Damage2,200

Initial HE Shell Velocity914 m./s.

Chance of Fire on Target Caused by HE Shell12 %

AA Defense

102 mm/45 QF Mk.XVI on a Mk.XIX mount2 х 2 pcs.

. . . Average Damage per Second18.8

. . . Firing Range5.01 km.

40 mm/39 Vickers QF Mk.VIII on a Mk.VII mount4 х 4 pcs.

. . . Average Damage per Second56

. . . Firing Range2.49 km.

12.7 mm Mk.III4 х 4 pcs.

. . . Average Damage per Second8.4

. . . Firing Range1.2 km.

Maneuverability

Maximum Speed20.99 knot

Turning Circle Radius650 m.

Rudder Shift Time18.5 sec.

Concealment

Surface Detectability Range14.49 km.

Air Detectability Range8.02 km.

Battle Levels

12345678910

13.3

Iron Duke

Battleship | U.K. | Tier V

Tech Tree Position

stock

 top

General

Research price13000 exp

Purchase price1,600,000

Hit Points47,100

Main Battery

343 mm/45 Mk.V on a Mk.II** mount5 х 2 pcs.

Rate of Fire2 shots/min.

Reload Time30 sec.

Rotation Speed2.5 deg./sec.

180 Degree Turn Time72 sec.

Firing Range16.8 km.

Maximum Dispersion227 m.

HE Shell343 mm HE Mk III

Maximum HE Shell Damage5,900

Chance of Fire on Target Caused by HE Shell40 %

Initial HE Shell Velocity759 m./s.

HE Shell Weight635 kg.

AP Shell343 mm AP Mk Ia

Maximum AP Shell Damage9,900

Initial AP Shell Velocity759 m./s.

AP Shell Weight635 kg.

Secondary Armament #1

102 mm/45 QF Mk.XVI on a Mk.XIX mount4 х 2 pcs.

Firing Range4.3 km.

Rate of Fire20 shots/min.

Reload Time3 sec.

HE Shell102 mm HE 35 lb

Maximum HE Shell Damage1,500

Initial HE Shell Velocity811 m./s.

Chance of Fire on Target Caused by HE Shell6 %

Secondary Armament #2

152 mm/50 BL Mk.VII/XII on a PVIII/PIX mount12 х 1 pcs.

Firing Range4.3 km.

Rate of Fire6.98 shots/min.

Reload Time8.6 sec.

HE Shell152 mm HE 4crh

Maximum HE Shell Damage2,200

Initial HE Shell Velocity914 m./s.

Chance of Fire on Target Caused by HE Shell12 %

AA Defense

102 mm/45 QF Mk.XVI on a Mk.XIX mount4 х 2 pcs.

. . . Average Damage per Second37.6

. . . Firing Range5.01 km.

40 mm/39 Vickers QF Mk.VIII on a Mk.VI mount2 х 8 pcs.

. . . Average Damage per Second39.6

. . . Firing Range2.49 km.

40 mm/39 Vickers QF Mk.VIII on a Mk.VII mount4 х 4 pcs.

. . . Average Damage per Second56

. . . Firing Range2.49 km.

12.7 mm Mk.III4 х 4 pcs.

. . . Average Damage per Second8.4

. . . Firing Range1.2 km.

Maneuverability

Maximum Speed22.5 knot

Turning Circle Radius650 m.

Rudder Shift Time13.2 sec.

Concealment

Surface Detectability Range14.49 km.

Air Detectability Range8.02 km.

Battle Levels

12345678910

V

1,600,000

Iron Duke — British Tier V battleship.

The idea to equip battleships with heavy 152 mm secondary guns came about in 1909. The four Iron Duke-class battleships were similar to their predecessors but differed by more powerful secondary armament and larger dimensions. After commissioning in 1914, Iron Duke participated in World War I and was Admiral Jellicoe's flagship during the Battle of Jutland. In 1919, she joined the Mediterranean Fleet and took part in the intervention in Soviet Russia. In 1939, she was transferred to Scapa Flow. On October 17, 1939, the ship was damaged by a German air raid and scuttled.

Modules

	Rate of Fire (shots/min)	180° Turn Time (sec)	Maximum Dispersion (m)	Maximum HE Shell Damage (HP)	Chance of Fire on Target Caused by HE Shell (%)	Maximum AP Shell Damage (HP)		Research price (exp)	Purchase price ()
343 mm/45 Mk.V on a Mk.II** mount	2	72	227	5,900	40	9,900		0	178,000

	Hit Points (HP)	Armor (mm)	Armor (mm)	Main Turrets (pcs.)	Secondary Gun Turrets (pcs.)	AA Mounts (pcs.)	Torpedo Tubes (pcs.)	Hangar Capacity (pcs.)		Research price (exp)	Purchase price ()
Iron Duke (A)	41,200	13	305	5	2/12	4/4/2				0	190,000
Iron Duke (B)	47,100	13	305	5	4	4				5,000	550,000

	IDS_SHIP_PARAM_SUO_INCREASE_DIST (%)	Maximum Firing Range (km)		Research price (exp)	Purchase price ()
Mk V mod. 1		0		0	64,000
Mk V mod. 2		0		3,600	340,000

	Maximum Speed (knot)		Research price (exp)	Purchase price ()
Propulsion: 29,000 hp	21		0	84,000
Propulsion: 32,500 hp	22.5		2,700	240,000

Compatible Upgrades

Slot 1
Slot 2
Slot 3

Player Opinion

Performance

HMS Iron Duke is the Tier V British battleship. Like her Tier V contemporaries, Iron Duke boasts large caliber guns and thick armor. The main armor belt covers the majority of the hull which can help protect the ship when angling against large caliber guns. However, the armor will not protect the ship against broadside salvos.

Iron Duke is fitted with ten 343mm guns in a layout similar to König and New York. While Iron Duke’s armor piercing shells are often effective against cruisers and other lightly protected targets, they may struggle to deal damage against other battleships; when facing higher tiered or heavily angled battleships, captains should consider switching to high explosive shells. The high alpha damage and fire chance on the HE shells makes them quite effective at damaging targets that the AP shells would normally not harm. Additionally, Iron Duke suffers from a slow turret traverse speed. Captains must plan ahead and begin turning their guns before entering an engagement with enemy ships. In certain situations, it may also be quicker to turn the whole ship rather than wait for the turrets to traverse.

In addition to her main battery, Iron Duke carries a large secondary armament for her tier. While these guns are not as effective as some higher tier battleships’ secondaries, they can help fend off destroyers who sail too close to the ship. The secondary guns may also prove useful in close quarter engagements with other battleships due to the high fire chance they possess.

Pros:

• High explosive shells have high maximum damage and fire chance.
• The ship can fire all ten guns without needing to expose much of her side.
• Powerful secondary armament for her tier.
• The main armor belt covers a majority of the hull.

Cons:

• The main guns traverse slowly (72 seconds to turn 180 degrees).
• The AP shells may sometimes struggle to deal damage against enemy battleships.
• Lower torpedo damage reduction than other Tier V tech tree battleships.
• Slow top speed of merely 22.5 knots.

Research

Iron Duke has three modules to research: the hull, engine, and gun fire control system. Captains should first research the upgraded hull for the increased health and improved maneuverability it provides. Captains should next research the gun fire control system for the increased range before finally researching the ship’s engine module.

Optimal Configuration

Upgrades

Iron Duke has access to three upgrade slots. Captains should mount the following upgrades:

• Slot 1: Main Armaments Modification 1 will help reduce the likelihood of one of the main battery turrets becoming disabled.
• Slot 2: Aiming Systems Modification 1 decreases the dispersion of the main battery shells.
• Slot 4: Damage Control System Modification 1 reduces the chance of flooding or fire on the ship.

Commander Skills

Expert Loader is the most useful option amongst the Level 1 skills. This skill reduces the time needed to switch shell types if the main battery guns are already loaded. Priority target can also prove useful by alerting captains to how many ships are currently targeting them. For Level 2 skills, Expert Marksman is recommended to reduce the turret traverse time. Captains looking to improve the surviability of the ship may also opt for High Alert or Jack of All Trades for the reduced consumable cool down.

At Level 3, Superintendent is recommended for an extra charge of the Repair Party consumable. Basics of Survivability is also recommended to reduce the time required to repair fires, flooding, and module damage. Captains may also choose to take Basic Firing Training to improve the effectiveness of the anti-aircraft and small caliber secondary guns. Concealment Expert is recommended at Level 4 to reduce the ship’s detection radius, allowing captains to close in unnoticed. Fire Prevention is also recommended to reduce the risk of fire and maximum number of fires on the ship. Advanced Firing Training can be taken to increase the firing range of the secondary and anti-aircraft guns.

Recommended Commander Skills
Cost (points)	Endurance		Attack		Support		Versatility
1	Priority Target Situational Awareness indicator will show the number of opponents currently aiming at you with main battery guns. ★★	Preventative Maintenance -30% to the risk of incapacitation of main turrets, torpedo tubes, steering gear, engines. ★	Expert Loader -50% to reload time when shell type is switched. ★★★	Air Supremacy -5% aircraft restoration time.	Direction Center for Fighters +1 fighter to carrier fighter squadrons or catapult fighters.	Improved Engine Boost +10% Aircraft engine boost time.	Incoming Fire Alert Indicator of long-range enemy artillery fire. ★	Last Gasp Completely restores the engine boost for the last attack flight of the carrier's planes.
2	High Alert -10% to reload time of Damage Control Party consumable. ★★	Jack of All Trades -5% to reload time of all consumables. ★★	Expert Marksman +2.5 deg/sec to traverse speed of guns with a caliber up to 139mm. +0.7 deg/sec to traverse speed of guns with a caliber above 139mm. ★★★	Torpedo Acceleration +5 knots to torpedo speed. -20% to torpedo range.	Smoke Screen Expert +20% to the radius of the smoke screen.	Improved Engines +2.5% Squadron speed.	Adrenaline Rush -0.2% to reload times of all types of armament for each 1% of total health lost. +0.2% squadron speed for each 1% of total health lost. ★	Last Stand The ship remains able to move and maneuver while the engine or steering gears are incapacitated.
3	Basics of Survivability -15% to time of repair, fire extinguishing, and recovery from flooding. ★★★	Survivability Expert +350 ship HP for each ship tier. +15 aircraft HP for each ship tier.	Torpedo Armament Expertise -10% to reload time of torpedo tubes.	Aircraft Armor Reduces continuous damage to aircraft in all AA defense zones. -10% continuous damage.	Basic Firing Training -10% to reload time of main battery guns with a caliber up to and including 139mm and all secondary battery guns. +10% to continuous damage from AA guns. ★★	Superintendent +1 additional charge to all consumables mounted on a ship. ★★★	Demolition Expert +2% chance of HE shells causing a fire on target. +1% chance of rockets causing a fire on target. +5% chance of HE bombs causing a fire on target. ★	Vigilance +25% to detection range of enemy torpedoes. ★
4	Manual Fire Control for Secondary Armament Tightens dispersion of shells from secondary batteries. -15% for Tier I-VI ships. -60% for Tier VII-X ships. Manually selected target only.	Fire Prevention -10% to the risk of fire. The maximum number of fires on a ship is reduced to three. ★★	Inertia Fuse for HE Shells +30% to the armor penetration capacity of HE shells. -1% chance of fire on target caused by shells <=139mm. -3% chance of fire on target caused by shells >139mm.	Sight Stabilization Speeds up the aiming of a carrier's aircraft. +5% attack aircraft aiming speed. +5% torpedo bomber aiming speed. +10% dive bomber aiming speed.	Advanced Firing Training +20% to firing range of main battery guns with a caliber up to 139mm and all secondary battery guns. +15% damage/sec. within the explosion radius of shells fired from long-range AA defenses. ★★	Massive AA Fire Instantaneous Damage +100%. Priority AA sector cooldown +50%.	Radio Position Finding Shows the direction to the nearest enemy ship. The enemy is alerted that a bearing has been taken.	Concealment Expert -10% to the detection radius of all ships and aircraft. ★★
Key: ★★★ - Extremely Useful       ★★ - Frequently Useful       ★ - Occasionally Useful      No stars - Meh     Χ - Not recommended

Consumables

Iron Duke can equip the following consumables:

• Slot 1: Damage Control Party 
• Slot 2: Repair Party 

Mounting the premium variants of these consumables is recommended to decrease their cool down and improve the ship’s survivability.

Camouflage

Type 1, 2, or 5 camouflage can be equipped for credits; Types 2 or 5 are recommended at a minimum to reduce the accuracy of incoming shells. Other camouflages such as the Ocean Soul camouflage may also be used to boost the experience or credit gain per battle.

Signals

Iron Duke can mount eight signal flags simultaneously. Captains should mount India Delta flags () to increase the amount of hit points the repair party consumable can recover. Sierra Mike flags () are also recommended to increase the ship’s top speed. India Yankee flags () can be mounted to decrease the time needed to extinguish fires. Lastly, economic and special signal flags can be mounted to increase the credit and experience gain per battle.

Recommended Signal Flags
Combat
Juliet Charlie -100% to the risk of magazine detonation. ★	Juliet Yankee Bissotwo -20% to flooding duration. ★	India Yankee -20% to fire duration. ★★	Hotel Yankee -20% to damage received when ramming the enemy. +50% to damage dealt when ramming the enemy.	Victor Lima +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +4% chance of torpedoes causing flooding. ★	India X-Ray +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +5% to the risk of your ship's magazine detonating. ★
Juliet Whiskey Unaone +15% chance of causing flooding. +5% to the risk of your ship's magazine detonating.	Mike Yankee Soxisix +5% to secondary battery maximum firing range. -5% to maximum dispersion of secondary battery shells. -5% to secondary battery loading time. ★★	November Echo Setteseven +5% continuous AA damage at all ranges. +5% damage from flak bursts. ★	Sierra Mike +5% to the ship's maximum speed. ★★	November Foxtrot -5% reload time on all consumables. ★★★	India Delta +20% to the amount of HP recovered when Repair Party  is used. ★★★
X-Ray Papa Unaone +10% action time of a Smoke Generator .	Sierra Bravo +10% action time of Hydroacoustic Search  -10% reload time of Defensive AA Fire .

Note: Use of the Juliet Charlie signal makes detonation impossible.

Gallery

• 

  Iron Duke sets sail.

• 

  Iron Duke fires a full salvo at an enemy ship.

• 

  Iron Duke closes in on an enemy Fuso.

• 

  A bomb explodes on Iron Duke's superstructure.

• 

  After a short brawl, Iron Duke finishes off the enemy Fuso.

Historical Info

HMS Iron Duke, 1916

Construction

Portsmouth Dockyard; Portsmouth, England

Laid down: 12 January 1912

Launched: 12 October 1912

Commissioned: March 1914

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Specifications

25,000 tons displacement, standard

189.8m length

27.4m beam

9.0m draft

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Machinery

18 boilers, 4 turbines

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Performance

21 knots at 29,000 shaft horsepower

7,780 nautical miles at 10 knots

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Armor

Main belt: 100-300mm

Decks: 25-65mm

Bulkheads: 40-200mmt

Barbettes and Turrets: 75-250mm barbettes, 280mm turrets

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Armament

Main

Ten (5 x 2) 343mm guns

Secondary

Twelve (6 x 2) 152mm guns

Anti-Aircraft

Two (2 x 1) 76mm guns

Four (4 x 1) 47mm guns

Torpedoes

Four (4x1) 533mm submerged torpedo tubes

HMS Iron Duke at anchor, circa 1914.

History

HMS Iron Duke was a dreadnought battleship of the Royal Navy, the lead ship of her class, named in honour of Arthur Wellesley, 1st Duke of Wellington. She was built by Portsmouth Dockyard, and her keel laid in January 1912. Launched ten months later, she was commissioned into the Home Fleet in March 1914 as the fleet flagship. She was armed with a main battery of ten 13.5-inch (340 mm) guns and was capable of a top speed of 21.25 knots (39.36 km/h; 24.45 mph).

Iron Duke served as the flagship of the Grand Fleet during the First World War, including at the Battle of Jutland. There, she inflicted significant damage on the German battleship SMS König early in the main fleet action. In January 1917, she was relieved as fleet flagship. After the war, Iron Duke operated in the Mediterranean as the flagship of the Mediterranean Fleet. She participated in both the Allied intervention in the Russian Civil War in the Black Sea and the Greco-Turkish War. She also assisted in the evacuation of refugees from Smyrna. In 1926, she was assigned to the Atlantic Fleet, where she served as a training ship.

Iron Duke remained on active duty for only a few more years; in 1930, the London Naval Treaty specified that the four Iron Duke-class battleships be scrapped or otherwise demilitarized. Iron Duke was therefore converted into a gunnery training ship; her armour and much of her armament was removed to render her unfit for combat. She served in this capacity until the outbreak of the Second World War in September 1939, when she was moored in Scapa Flow as a harbour defense ship. In October, she was badly damaged by German bombers and was run aground to avoid sinking. She continued to serve as an anti-aircraft platform for the duration of the war, and was eventually refloated and broken up for scrap in the late 1940s.

Historical Inaccuracies

• Both hull modules are fictitious "what if?" rebuilds of the ship. As a result Iron Duke has no historical configuration, including her original World War I configuration. As a result, all AA guns and 102mm dual purpose guns on the ship are ahistorical.
• The more modern rangefinder on the spotting top is also ahistorical and tied to the fictional rebuild.
• The larger 15-inch turrets of the Revenge class only had a quadruple 40mm pompom mounted; therefore, it is unrealistic that an octuple 40mm pompom mount would have been added on top of the 13.5-inch turret for Iron Duke had she ever been rebuilt.
• The single trunked funnel replacing the 2 original funnels indicates that Iron Duke's engines have been replaced, however the 23.5 knot speed that would be associated with such a rebuild is not present.
• Iron Duke’s stat card shows her configuration as in 1939; her twin QF 5.25-inch (133 mm) dual-purpose gun that was mounted aft of "Y" barbette that same year is missing (see Historical Gallery).
• In 1939, Iron Duke was actually serving as an anti-aircraft platform; by then her armor and most of her armament had been removed.
• Two 3-inch (7.62 cm) anti-aircraft guns fitted to the aft superstructure in 1914 are missing.

Historical Gallery

• 

  HMS Iron Duke in 1914.

• 

  Plan of Iron Duke.

• 

  Iron Duke in November 1913.

• 

  Field Marshal Herbert Kitchener boarding Iron Duke on 5 June 1916.

• 

  HMS Iron Duke as seen from HMS King George V during the Great Fire of Smyrna.

• 

  Iron Duke in Port Said in 1921.

• 

  Iron Duke (foreground) at Scapa Flow in 1939 when she was in use as a depot / AA ship: her 'B' and 'Y' turrets have been removed.

• 

  The ship's bell of HMS Iron Duke, which was presented to Winchester Cathedral by Admiral Sir Frederic Charles Dreyer (1878–1956), her captain during the Battle of Jutland. The bell stands above a slab commemorating Dreyer and his wife.

Ships of U.K.

Battleships