PORPOISE

Fleet

Royal Navy

Ship Type

Destroyer

Nickname

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Ship Class

Acasta class

Grouping

4th Destroyer Flotilla

Command

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Builder's Yard

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Budget Year

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Construction Notes

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Date Laid Down

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Launch Date

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Completed date

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Commission date

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Year laid down

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Year launched

1913

Year completed

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Commission Year

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Pennant No

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Photo Details

Photo of Maranhão in 1923 for an idea of what HMS Porpoise's look

Sister ships

Acasta, Achstes, Ambuscade, Christopher, Contest, Fortune, Garland, Hardy, Midge, Owl, Shark, Sparrowhawk, Spitfire, Unity

Eventual Fate

Sold to the Brazilian Navy 1920, re-named Maranhão

Jutland result

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Ready for action after dock repairs

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Commander

Commander Hugh D. Colville

Noteable Officers

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Crew complement

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Officers

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Ratings

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Killed

Wounded

Prisoners

Displacement full Load (tons)

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Artefacts Data

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Ship's Model

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Length (ft)

267' 6"

Length (mtrs)

81.53

Beam (ft)

29' 9"

Beam (mtrs)

8.15

Draught (ft)

9' 6"

Draught (mtrs)

2.9

Max. Speed (knots)

32 (Acasta)

Range (miles)

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Range (kilometres)

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Fuel

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Propulsion

2 shaft steam turbines. Yarrow water tube boilers.

Armour Main Belt

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Deck Armour

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Turret Armour IN CM

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Conning Tower Armour

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Barbette Armour

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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

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Fire Control - Clock

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Primary Gun calibre

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No. Primary Turrets

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Guns (No.barrels)

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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)

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Primary Broadside Weight

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Secondary Gun Calibre

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Guns (No.barrels) 2

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Rounds per secondary

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Other Armament

Three QF 4" Mk IV guns (101.6 mm), One QF 2 pdr Pom Pom Mk II gun

Elevation (degrees)

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Gunnery Range (yards)

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Gunnery Range (metres)

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Rate of Fire (rds per minute)

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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

21"

No. tubes

Torpedo Type MM

533 mm

No. Mines

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Torpedo Notes

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References & sources

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