|Preceded by:||Imperieuse class cruiser|
|Succeeded by:||Blake class cruiser|
|Type:||first class armoured cruiser|
|Length:||300 ft (91 m)|
|Beam:||56 ft (17 m)|
|Draught:||22.5 ft (6.9 m)|
|Propulsion:||3-cylinder triple-extension steam engines
4 double-ended boilers
8,500 hp forced-draught
|Speed:||17 knots natural draught
18 knots forced draught
|Range:||10,000 nautical miles (19,000 km) at 10 knots (19 km/h)|
|Armour:||10 in (254 mm) belt
12 in (304.8 mm) conning tower
On 2 December 1884, the Secretary to the Admiralty stated, "The present Board have been gradually developing, and, as I would venture to say, in an effective manner, our resources for the protection of commerce. The late Board of Admiralty laid down an admirable type for the purpose in the Leander class. We have followed in their footsteps by producing the Mersey type, and we now propose to go a step further in the same direction, by laying down vessels of the Mersey class, but protected by a belt in lieu of an armoured deck. The belt will, I think, be approved by my hon. Friend who sits behind me (Sir Edward J. Reed)." These belted cruisers were the Orlando class.
The following table gives the build details and purchase cost of the members of the Orlando class. Standard British practice at that time was for these costs to exclude armament and stores. In the table:
- Machinery meant "propelling machinery".
- Hull included "hydraulic machinery, gun mountings, etc."
|Date of||Cost according to|
|Laid Down||Launch||Completion||( BNA 1895)||( BNA 1903)|
|Orlando||Palmers, Jarrow||Palmers||23 Apr 1885||3 Aug 1886||June 1888||£206,647||£60,165||£266,812||£303,065|
|Aurora||Pembroke Dockyard||J&G Thompson||1 Feb 1886||28 Oct 1887||July 1889||£220,550||£64,000||£284,550||£326,110|
|Australia||Fairfield Shipbuilding and Engineering Company, Govan||C & W Earle||21 Apr 1885||25 Nov 1886||October 1888||£195,390||£63,000||£258,390||£299,027|
|Galatea||Napier, Glasgow||Napier||21 Apr 1885||10 Mar 1887||March 1889||£195,390||£63,000||£258,390||£291,803|
|Immortalite||Chatham Dockyard||C & W Earle||18 Jan 1886||7 Jul 1887||July 1889||£221,500||£57,000||£278,500||£332,359|
|Narcissus||C & W Earle, Hull||C & W Earle||27 Apr 1885||15 Dec 1886||July 1889||£195,890||£61,500||£257,390||£300,149|
|Undaunted||Palmers, Jarrow||Palmers||23 Apr 1885||25 Nov 1886||July 1889||£195,890||£60,165||£256,055||£300,863|
- Chesnau, Roger and Kolesnik, Eugene (Ed.) Conway's All the World's Fighting Ships, 1860–1905. Conway Maritime Press, 1979. ISBN 0-8317-0302-4
- Colledge, J. J.; Warlow, Ben (2006) . Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8. OCLC 67375475.
- Brassey, T.A. (ed) The Naval Annual 1895
- Brassey, T.A. (ed) The Naval Annual 1903
- Hansard HC Deb 02 December 1884 vol 294 c455 House of Commons, the Secretary to the Admiralty, Sir Thomas Brassey.
- Note that the costs quoted in the 1895 edition and the 1903 edition are not the same. There seems to have been a revision of the costs quoted for British warships in The Naval Annual between the 1902 and 1903 editions, and a further revision between the 1905 and 1906 editions. (The 1906 edition costs cannot be quoted for the Orlando class because the class is not listed in the 1906 edition.)
- The Naval Annual 1895 , p192-200
- The Naval Annual 1895, p192-200
- The Naval Annual 1903, p236-243
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