ORION | The Battle of Jutland - Centenary Initiative
15447
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ORION

Fleet

Royal Navy

Ship Type

Battleship

Nickname

Ship Class

Orion

Grouping

2nd Battle Squadron

Command

Builder's Yard

HM Dockyard Portsmouth

Budget Year

Construction Notes

Date Laid Down

29.11.1909

Launch Date

20.08.1910

Completed date

Commission date

02.01.1912

Year laid down

Year launched

Year completed

Commission Year

Pennant No

Photo Details

Related stories

Sister ships

Eventual Fate

Jutland result

Ready for action after dock repairs

Commander

Captain Oliver Backhouse, C.B. (Flying the Flag of Rear-Admiral Arthur C. Leveson, C.B.)

Noteable Officers

Crew complement

750 - 1,100

Officers

Ratings

Killed

Wounded

Prisoners

Displacement full Load (tons)

25,870

Artefacts Data

Ship's Model

Length (ft)

581

Length (mtrs)

177

Beam (ft)

88,7

Beam (mtrs)

27

Draught (ft)

24,6

Draught (mtrs)

7,5

Max. Speed (knots)

21

Range (miles)

12,460 km at 10kts

Range (kilometres)

Fuel

3,300 max fuel load & 800 tons fuel oil

Propulsion

4 Parson steam turbines supporting 18 Babcock and Wilcox water boilers and 4 shafts. Rated 27,000 shp.

Armour Main Belt

12" waterline

Deck Armour

1,5" upper & main, lower 2,5"

Turret Armour IN CM

11" face

Conning Tower Armour

11" max

Barbette Armour

10" max

Weight of armour

Armour / Displacement Ratio

Watertight compartments

General Notes

The first Super Dreadnought with a main calibre gun of more than 12".

Fire Control Table

Argo Plotting table

Fire Control - Clock

Primary Gun calibre

BL 13.5" Mk V guns (342.9 mm)

No. Primary Turrets

5

Guns (No.barrels)

10

Primary gun layout

Rounds per main gun

100

Effective broadside guns

Primary shell Weight (inches or cm)

Primary Broadside Weight

Secondary Gun Calibre

BL 4" Mk VII guns (101.6 mm)

Guns (No.barrels) 2

Rounds per secondary

Other Armament

Elevation (degrees)

Gunnery Range (yards)

Gunnery Range (metres)

Rate of Fire (rds per minute)

Shells expended Main

Mines dropped

Shells expended Secondary

Torpedoes fired

Gunnery Notes

A turret arc of fire 300 degrees. B turrets could in practice only fire broadside as the effect of the blast on A turret was intolerably high as sighting hoods had been placed on A turrets. Q turret had a broadside arc of 120 degrees.

Torpedo Type IN

No. tubes

3

Torpedo Type MM

21"

No. Mines

Torpedo Notes

submerged

References & sources