INDEFATIGABLE

Fleet

Royal Navy

Ship Type

Battle-cruiser

Nickname

–

Ship Class

Indefatigable

Grouping

2nd Battlecruiser Squadron

Command

Battle-cruiser Fleet

Builder's Yard

Devonport Naval Dockyard - Plymouth Dockyard, Plymouth

Budget Year

1908-1909 Naval Estimates

Construction Notes

Unique in having an armoured spotting tower but the view was obscured by the Conning tower which was in front.

Date Laid Down

23.02.2009

Launch Date

28.10.2009

Completed date

24.02.2011

Commission date

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Year laid down

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Year launched

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Year completed

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Commission Year

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Pennant No

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Photo Details

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Related stories

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Sister ships

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Eventual Fate

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Jutland result

First ship to be sunk at the start of the battle cruiser action at 16:03, May 31st 1916.

Ready for action after dock repairs

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Commander

Captain Charles F. Sowerby

Noteable Officers

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Crew complement

1,019

Officers

–

Ratings

–

Killed

1,017

Wounded

–

Prisoners

2

Displacement full Load (tons)

22,130

Artefacts Data

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Ship's Model

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Length (ft)

590

Length (mtrs)

179.8

Beam (ft)

80

Beam (mtrs)

24.4

Draught (ft)

29'9"

Draught (mtrs)

9.07

Max. Speed (knots)

25

Range (miles)

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Range (kilometres)

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Fuel

Range of 6,690 nm (7,700 miles) at 10 knots.

Propulsion

4 shafts, 2 Parsons direct drive steam turbine sets. 31 Babcock and Wilcox coal fired boilers

Armour Main Belt

4 to 6" (102 - 152 mm)

Deck Armour

1.5 to 2.5" (38 to 64 mm)

Turret Armour IN CM

7" (178 mm).

Conning Tower Armour

4 to 10" (102 to 254 mm)

Barbette Armour

7" (178 mm)

Weight of armour

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Armour / Displacement Ratio

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Watertight compartments

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General Notes

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Fire Control Table

Dreyer Mk 1

Fire Control - Clock

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Primary Gun calibre

BL 12" Mk X

No. Primary Turrets

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Guns (No.barrels)

8

Primary gun layout

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Rounds per main gun

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Effective broadside guns

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Primary shell Weight (inches or cm)

850

Primary Broadside Weight

6800

Secondary Gun Calibre

4"

Guns (No.barrels) 2

16

Rounds per secondary

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Other Armament

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Elevation (degrees)

13.5

Gunnery Range (yards)

18850

Gunnery Range (metres)

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Rate of Fire (rds per minute)

2

Shells expended Main

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Mines dropped

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Shells expended Secondary

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Torpedoes fired

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Gunnery Notes

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Torpedo Type IN

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No. tubes

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Torpedo Type MM

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No. Mines

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Torpedo Notes

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References & sources

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