Index
Agincourt
Bellerophon Cl
Canada
Colossus Class
King Edward Cl
Dreadnought
Erin
Hood
Invincible Cl
Iron Duke Cl
King George Class
Lion Cl
Neptune
New Zealand
Orion Cl
Queen Elizabeth Cl
Renown Cl
Royal Sovereign Cl
St Vincent Cl
Tiger
 
As extracted from Jane's Fighting Ships © for 1919

1909 British Dreadnoughts

(Orion Class.)


Page 55

ORION (Aug., 1910). THUNDERER (Jan., 1911), MONARCH (March 1911), CONQUEROR (May, 1911).

ORION                    Photo. C. N.

  • Normal displacement, 22,500 tons (about 25,000 full load.)
  • Complement, 806 to 828.
  • Length (p p.), 545 feet. Beam, 88.5 feet. Mean draught, 26 feet 10 inches, Max. 30.75 feet; length over all, 581 feet.
  • Guns: 10 - 13.5 inch (M.V.), Dir. Con. ; 16 - 4 inch, Dir. Con. ; 1 - 4 inch (anti-aircraft) ; 1 - 3 inch (anti-aircraft) ; 4 - 3 pdr. ; 5 M.G.; (I landing) ;
  • Torpedo tubes (21 inch): 2 submerged (broadside)
  • Armour (Vertical) (K.C.): 12" Lower belt ; 9" Middle belt ; 8" Upper belt ; 4", 6", 8" B'lkh'ds (fore) ; 6" - 4" Belt (bow) ; 2.5" Belt (stern) ; 2.5", 8", 10" B'lkh'ds(aft) ; 10" - 7" Barbettes; 11" - " Gunhouses; 1.5 " Funnel uptakes ; 11" C.T. (6", 3" hoods) ; 5" Fore com. Tube ; 3" Torpedo C.T. & tube.
  • Armour (Decks) (Nickel) : 1.5" Upper ; 1.5" Main ; 1" Middle ; 2.5" Lower; 4" over rudder;
  • Special protection: -" Internal screens to magazines &c.
  • Machinery : Parsons turbine ; Designed H.P. 27,000 = 21 kts. 4 screws ; Boilers : 18, (see Notes).
  • Coal : normal, 900 tons ; maximum 3300 tons coal + 800 tons oil.

Armour Notes: 12" belt very narrow and submerged at deep load. Barbette bases. 6" - 3" within belt. Internal vertical screen to magazines, &c., not continuous between end barbettes.

Torpedo Notes.-Stern tube removed during War.

Name

Builder

Machinery

Laid down

Completed

Trials:

Boilers

Best recent speed

30 hrs

8 hrs. full power (mean)

Orion

Portsmouth Y.  

Wallsend

Nov. '09

Jan. '12

18,966=19.5

29,108 = 21.02

Babcock

22.3

Conqueror

Beardmore

Beardmore

Apr. '10

Nov. '12

19,100=19.5

28,400=22.13

23.1

Thunderer

Thames I. W.

Thames I. W.  

June '12

18,927=18.8

27,416=20.8

21.45

Monarch

Elswick

Hawthorn

Apr '12

19,128= -

28,555=21.88

Yarrow

-

General Notes: Orion begun under 1901 Estimate: the others are ships which were known as Conditional Dreadnoughts laid down under the same Estimates. Average cost, 1,887,870. In these ships, protection is given to the boats for the first time. On her first cruise the Orion in the Bay of Biscay rolled 21 degrees. This rolling was attributed to her small bilge keels, 6 feet only. During 1912 improved bilge keels were fitted and the ships roll far less. On trials, Conqueror made a maximum of over 23 kts. Monarch was originally named King George V. The general design for these ships was considered for the Dreadnought but rejected on the score of size and cost.


Ahead: 4 - 13.5 in.     Broadside: 10 - 13.5 in., 1 - 21 in tube ;      ; Astern: 4 * 13.5 in.

Note to Plans: Require revision, but new plans cannot be drafted until reliable information is secured describing present positions of 4-inch guns, A.A. guns, and searchlights. "Coffee-box" S.L. towers added to second funnel. 4-inch on shelter deck is now housed in.

Source: As extracted from Jane's Fighting Ships © for 1919 - Page 55

© Jane's Information Group

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