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ROYAL ALFRED wooden broadside ironclad (1867)


Ships


Name

No

Yard No

Builder

Laid down

Launched

Comp

Fate

Royal Alfred     Portsmouth DYd 1/12/1859 15/10/1864 23/3/1867 sold 12/1885


Technical data


Displacement normal, t

6720

Displacement full, t 
Length, m

83.2 pp

Breadth, m

17.9

Draught, m

7.19

No of shafts

1

Machinery

sails + 1 2-cyl HSE, return connection rod, double piston pods, 6 rectangular boilers

Power, h. p.

3434

Max speed, kts

12.4

Fuel, t

coal 550

Endurance, nm(kts)2200(5)
Armour, mmiron; belt: 152 with 749mm oak backing, bulkheads 114
Armament

10 x 1 - 229/14 MLR Mk IV, 8 x 1 - 178/16 MLR Mk III, 6 x 1 - saluting howitzers

Complement

605



Ship project history


Laid down as 90-gun 2nd rate, conversion to ironclad was approved in 1861. She was lengthened on the stocks priorto decision to hold up her conversion pending the results obtained from Royal Oak and Prince Consort class. Finally it was decided to adopt a box battery and heavy guns and armour as provided for Bellerophon. 229mm guns were mounted in the battery and two 178mm guns were mounted at each end of the main deck behind armour and unprotected on the upper deck. Ship was ship-rigged, with 2700m² sail area. She was equally as fast under sail or steam and handled well, being a good seaboat apart from a heavy roll.

Ship protection


Full length belt was 152mm amidships and 102mm at the ends and extended from the main deck to 1.7m below the waterline. Between the main and upper deck 152mm armour was provided over the 35m length of the central battery with 114mm at the extreme bow and stern to protect the main deck chase guns.

Modernizations


None.

Naval service


No significant events.