Ship Database
Tier IV Battleship

United Kingdom

Queen Mary

The project for a third trio of British battlecruisers with 343 mm guns was based on the Orion-class battleships. The third ship of the series—HMS Queen Mary—was built as part of the 1910 program. She entered service as part of the 1st Battlecruiser Squadron in 1913 and took part in the Battle of Heligoland Bight in 1914. The ship sank during the Battle...

Read full ship history

The project for a third trio of British battlecruisers with 343 mm guns was based on the Orion-class battleships. The third ship of the series—HMS Queen Mary—was built as part of the 1910 program. She entered service as part of the 1st Battlecruiser Squadron in 1913 and took part in the Battle of Heligoland Bight in 1914. The ship sank during the Battle of Jutland after her magazines detonated as a result of coming under focused fire from the German ships.

Credits
800,000
Official profile image of Queen Mary

At a glance

The numbers that shape the ship

Hit points
42,600
Maximum speed
27.5 knots
Surface detection
12.5 km
Main battery range
13.2 km
Main battery reload
30.0 s

Combat envelope

Range and detection

Scale: 15 km

Every bar uses the same 15 km scale. Surface detection is a visibility threshold, not a weapon range.

  • Surface detection12.5 km
  • Main battery13.2 km
  • Secondary battery4 km
  • Torpedoes6 km

Damage comparison

Published maximum per hit

Ship-relative

Bars are normalized only against this ship's highest listed hit. They are not salvo damage, expected damage or DPM.

  • HE · 343 mm HE Mk Ia 4,550
  • AP · 343 mm AP Mk Ia 8,500
  • Torpedo · 533 mm Mk II 10,000
Handling, concealment and protectionOverview

Handling

Maximum speed
27.5 knots
Turning circle radius
740 m
Rudder shift time
18.7 s
Maneuverability API rating 36

Concealment

Surface detection
12.5 km
Air detection
9.1 km
Submarine detection
9.1 km
Concealment API rating 52

Survivability

Hit points
42,600
Torpedo damage reduction
8 %
Survivability API rating 50

Published armour thickness

Only positive values supplied by the API are shown.

Overall published range
13–254 mm
Weapons and payloadsArmament

Surface armament

Main battery

Artillery API rating 76
Maximum range
13.2 km
Reload time
30.0 s
Rate of fire
2.0 rounds/min
180° turn time
30.0 s
Maximum dispersion
158 m

Shells

Damage is the API's published maximum for one shell hit.

343 mm HE Mk Ia
HE
Maximum damage per hit
4,550
Fire chance
39.0 %
Muzzle velocity
787 m/s
Shell mass
567 kg
343 mm AP Mk Ia
AP
Maximum damage per hit
8,500
Muzzle velocity
787 m/s
Shell mass
567 kg
Gun layout
Mount
343 mm/45 Mk.V on a Mk.II* mount
Mounts
4
Barrels each
2

Automatic armament

Secondary battery

Maximum range
4.0 km
Mount
102 mm HE Mk II
Maximum damage per hit
1,500
Fire chance
6.0 %
Rate of fire
8.0 rounds/min
Muzzle velocity
873 m/s

Underwater armament

Torpedoes

Torpedoes API rating 2

533 mm Mk II

Maximum range
6.0 km
Maximum damage per hit
10,000
Reload time
95 s
Speed
53 knots
Detectability
1.1 km
180° turn time
15.0 s
Torpedo-tube layout
Mount
533 mm PR Mk II
Mounts
2
Tubes each
1

Anti-aircraft defence

AA defence API rating 20
Aura
7.7 mm Maxim Mk.I
Calibre
7 mm
Mounts
6
Aura
76.2 mm/45 QF HA Mk.I on an HA Mk.IV mount
Calibre
76 mm
Mounts
4
Modules, hull and progressionTechnical data

Default hull

Hull hit points
42,600
Main-battery barrels
4
Secondary barrels
16
Torpedo tubes
2
AA mounts
10

Engine

Published maximum speed
27.5 knots

Fire control

Module research tree

Names, research prices and defaults are reported directly by the API.

533 mm Mk II

Default
Type
Torpedoes
Purchase
80,000 credits

Propulsion: 75,000 hp

Default
Type
Engine
Purchase
80,000 credits

Queen Mary (A)

Default
Type
Hull
Purchase
120,000 credits
Next modules
1

Queen Mary (B)

Type
Hull
Research
2,700 XP
Purchase
300,000 credits
Next ships
1

Mk IV mod. 1

Default
Type
Suo
Purchase
80,000 credits
Next modules
1

Mk IV mod. 2

Type
Suo
Research
1,800 XP
Purchase
200,000 credits

343 mm/45 Mk.V on a Mk.II* mount

Default
Type
Artillery
Purchase
80,000 credits

Compatible upgrades

Official modernization descriptions and listed purchase prices. Effects still depend on the slot and configuration used in game.

Main Armaments Modification 1

Modernization

Credits
125,000

Damage Control System Modification 1

Modernization

Credits
250,000

Auxiliary Armaments Modification 1

Modernization

Credits
125,000

Next ships

Research costs published in this ship's official progression data.

Ship
Tiger
Research cost
13,000 XP
Available module groups
10
Compatible upgrades
3
Researchable next ships
1
Upgrade slots
2
Published battle levels
4–5

Cross-nation comparison

Ships that fill a similar slot

Closest same-tier, same-class matches from other nations, ranked by published base statistics.