Orion 1912
Conqueror 1918
| Name | No | Builder | Laid down | Launched | Comp | Fate |
| Conqueror | Beardmore, Dalmuir | 5/4/1910 | 1/5/1911 | 11/1912 | sold for BU 12/1922 | |
| Monarch | Armstrong, Elswick | 1/4/1910 | 30/3/1911 | 3/1912 | stricken 1/1925 | |
| Orion | Portsmouth DYd | 29/11/1909 | 20/8/1910 | 1/1912 | sold for BU 12/1922 | |
| Thunderer | Thames IW, Leamouth | 13/4/1910 | 1/2/1911 | 6/1912 | sold for BU 12/1926 |
|
Displacement normal, t |
22200 |
|
Displacement full, t |
25870 |
|
Length, m |
177.1 |
|
Breadth, m |
27.0 |
|
Draught, m |
7.60 |
|
No of shafts |
4 |
|
Machinery |
Parsons steam turbines, 18 Babcock & Wilcox boilers Monarch: Parsons steam turbines, 18 Yarrow boilers |
|
Power, h. p. |
27000 |
|
Max speed, kn |
21 |
|
Fuel, t |
coal 3300 + oil 800 |
|
Armour, mm |
belt: 305 - 203, bulkheads: 254 - 76, turrets: 280 (face) - 203 (sides and rear) - 102-76 (roof), barbettes: 254 -178 (over main deck) - 178-76 (under main deck), deck: 102 - 45, CT: 254 (face and sides) - 76 (roof) |
|
Armament |
5 x 2 - 343/45 Mk V, 16 x 1 - 102/50 BL Mk VII, 4 x 1 - 47/40 Hotchkiss, 3 - 533 TT (2 beam, 1 stern) |
|
Complement |
752 |
Ship project history: First British superdreadnoughts with 13.5`` main guns. Very powerful ships for the time, however had an insufficient stability and weak anti-torpedo protection.
Protection: Main belt has 305-mm thickness between barbettes "A" and "Y", 152-102-mm belt extended fwd from barbette "A", ending in 13 m from stem, and aft from barbette "Y", ending in 14 m from stern, armour`s height was 6.25 m at full length. Lower belt with some length as main belt extended between main and middle decks. Its thickness was 229 mm (between barbettes "A" and "Y") - 152 - 102 - 64 mm. Upper belt extended between barbettes "A" and "Y" between main and upper decks. Its thickness was 203 mm. 305-mm main belt closed by fore 152-mm and after 254-mm bulkheads. Upper belt has 203-mm bulkheads. Second fore 102-mm bulkhead was at the end of 102-mm part main belt, its thickness between main and upper decks was 38 mm. End of 64-mm after part of lower belt closed by 64-mm bulkhead. Upper deck between barbettes "A" and "Y" was 38-mm. Main deck was 64-mm between first and second fore bulkheads and first and second aft bulkheads, 25-mm middle deck with 25-mm slopes closed citadel. Lower deck was 102-76 mm aft from barbette "Y" and 64 - 25-mm fwd from barbette "A". Funnel uptakes had 38-25-mm splinter Protection.
Modernizations: 1915, all: reducing of topmasts.
1916, all: + extra armour over magazines.
1917, all: + flying-off platforms (Orion - on "B" & "Q" turrets, Thunderer and Conqueror - on "B" & "X" turrets, Monarch - on "B" turret).
late 1917, Conqueror: + 1 x 1 - 102/50 BL Mk VII AA, 1 x 1 - 76/45 QF Mk I
late 1917, Monarch, Orion, Thunderer: + 1 x 1 - 76/45 QF Mk I.
5/1921, Thunderer: - 8 x 1 - 102/50.
Naval service: Conqueror was seriously damaged bow in collision with Monarch 27/12/1914. Thunderer from 5/1921 served as TS.
Orion 1918
© Ivan Gogin, 2008-09