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Iron Duke
Battleship | U.K. | Tier V
Tech Tree Position
Queen Elizabeth
Research price13000 exp
Purchase price1,600,000 Credits
Hit Points41,200 
Main Battery
343 mm/45 Mk.V on a Mk.II** mount5 х 2 pcs.
Rate of Fireshots/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 Timesec.
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 Shell%
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.
Maximum Speed20.99 knot
Turning Circle Radius650 m.
Rudder Shift Time18.5 sec.
Surface Detectability Range14.49 km.
Air Detectability Range8.02 km.
Battle Levels

Iron Duke — British Tier V battleship.

A typical British battleship of World War I. The ship carried the same main battery guns as the battleships of the preceding class, but was armed with more powerful secondary battery guns.


Main Battery Guns Rate of Fire
180° Turn Time
Maximum Dispersion
Maximum HE Shell Damage
Chance of Fire on Target Caused by HE Shell
Maximum AP Shell Damage
Research price
Purchase price
343 mm/45 Mk.V on a Mk.II** mount2722275,900409,900 0178,000
Hull Hit Points
Main Turrets
Secondary Gun Turrets
AA Mounts
Torpedo Tubes
Hangar Capacity
Research price
Purchase price
Iron Duke (A)41,2001330552/124/4/2 0190,000
Iron Duke (B)47,10013305544 5,000550,000
Maximum Firing Range
Research price
Purchase price
Mk V mod. 10 064,000
Mk V mod. 20 3,600340,000
Engine Maximum Speed
Research price
Purchase price
Propulsion: 29,000 hp21 084,000
Propulsion: 32,500 hp22.5 2,700240,000

Compatible Upgrades

 Slot 1 
Main Armaments Modification 1
Auxiliary Armaments Modification 1
Magazine Modification 1
Spotting Aircraft Modification 1
Damage Control Party Modification 1
 Slot 2 
Damage Control System Modification 1
Engine Room Protection
 Slot 3 
Main Battery Modification 2
Secondary Battery Modification 1
AA Guns Modification 1
Aiming Systems Modification 1

Player Opinion


Warning. The data presented in the AA Defense sidebar section may be incorrect.
Refer to the in-game Port screens for more useful data.

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.


  • High explosive shells have high maximum damage and fire chance like most British battleships.
  • High explosive shells have superb 86mm penetration that allows citadel like burst damage on cruisers and destroyers.
  • Armor piercing shells are deadly at close range.
  • The ship can fire all ten guns without needing to expose much of her side.
  • Powerful secondary armament with long range for her tier.
  • Her main guns have better accuracy and damage than Orion’s.
  • Improved Repair PartyWhile active, restores a percentage of the ship's health points each second. that heals more per charge.


  • The main guns traverse slowly (72 seconds to turn 180 degrees).
  • The AP shells may sometimes struggle to deal damage against enemy battleships from far.
  • Shell flight time is slower than most same tier battleships.
  • Despite being faster than most battleships at her tier, she is still pretty slow.
  • Inferior torpedo protection than other Tier V tech tree battleships.
  • Although still sensible, her armor is not as strong as that of König and New York.


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


The recommended upgrades for Iron Duke are as follows:

Commander Skills


Iron Duke can equip the following consumables:


Iron Duke can mount eight signal flags simultaneously. Captains should mount India Delta flags (+20% to the amount of HP recovered when the Repair Party consumable is used.) to increase the amount of hit points the repair party consumable can recover. Sierra Mike flags (+5% to the ship's maximum speed.) are also recommended to increase the ship’s top speed. India Yankee flags (-20% to fire duration.) can be mounted to decrease the time needed to extinguish fires.

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


Historical Info

Historical Gallery


  1. HMS Iron Duke (1912) - Wikipedia
  2. Iron Duke-class battleship - Wikipedia

Ship Change Log

See here for links to Update notes.

Testing Changes

  • August 15, 2017:
    • The AP shell fuse delay was reduced from 0.033 to 0.015 s.
  • Introduced into the game as a researchable ship in Update 0.6.10.
    • Players who received Blueprint III from the British Battleships Mission chain during Update 0.6.9 were credited Iron Duke upon the release of Update 0.6.10.
  • Update 0.6.12:
    • Detectability when firing main guns in smoke changed to 12.59 km.
  • Update 0.6.13:
    • Improved display of thin elements.
    • Minor fixes to ship geometry and textures.
  • Update 0.7.2:
    • Minor fixes to the geometry and textures of the ship.
  • Update 0.7.9:
    • Catapults were added to the main battery turrets. The Spotting Aircraft consumable was added.
  • Update 0.7.12:
    • Minor fixes to geometry and textures.
  • Update 0.9.6:
    • The value of the in-game turning circle radius was changed to 650 m to correct prior discrepancy.
  • Update 0.10.5:
    • Fixed geometry and textures of the ship.
  • Update 0.10.10:
    • Secondary battery maximum firing range reduced from 4.5 to 4.3 km.
  • Update 0.11.9:
    • Minor fixes to geometry and textures of the ship.

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