Kawachi 1917
| Name | No | Builder | Laid down | Launched | Comp | Fate |
| 摂津 <Settsu> | Kure K K | 18/1/1909 | 30/3/1911 | 1/7/1912 | stricken 10/1923, target ship 1924 | |
| 河内 <Kawachi> | Yokosuka K K | 1/4/1909 | 15/10/1910 | 31/3/1912 | internal explosion 12/7/1918 |
|
Displacement normal, t |
Settsu: 21443 Kawachi: 20823 |
|
Displacement full, t |
22900 |
|
Length, m |
152.4 pp 160.6 oa |
|
Breadth, m |
25.7 |
|
Draught, m |
Settsu: 8.50 Kawachi: 8.20 |
|
No of shafts |
2 |
|
Machinery |
Curtis steam turbines, 16 Miyabara boilers |
|
Power, h. p. |
25000 |
|
Max speed, kn |
20 |
|
Fuel, t |
coal 2300 + oil 400 |
|
Armour, mm |
belt: 305 - 102, deck: 30, barbettes: 280, turrets: 280, casemates: 152, CT: 254 |
|
Armament |
2 x 2 - 305/50 41-shiki, 4 x 2 - 305/45 41-shiki, 10 x 1 - 152/45 41-shiki, 8 x 1 - 120/40 41-shiki, 12 x 1 - 76/40 41-shiki, 4 x 1 - 76/23 41-shiki, 5 - 450 TT (1 bow, 4 beam) |
|
Complement |
Settsu: 986 Kawachi: 999 |
Ship project history: The first and unique Japanese dreadnoughts with 12`` artillery. The project is developed on the basis of a battleship Aki. They have appeared unsuccessful: first of all, because of the strange decision to place on the ship main guns with different barrel length, that strongly complicated a fire control. At the same time they have played an important role in formation of national shipbuilding as 80% of materials and equipment, delivered on them, have been made in Japan. In particular, turbines for them under the American licence were built by Mitsubishi.
Ships were differed from each other.
Ship protection: Thickness of main belt was 305mm between end barbettes decreasing to 229mm outside barbettes and to 127mm near ship ends. Its thickness decreased to 102mm at lower edge. It was closed by same bulkheads abreast end barbettes. There was 229mm upper belt between end barbettes. Casemates were protected by 152mm armor. Flat 30mm main deck was connected with upper edge of main belt. Its thickness increased to 51mm outside end barbettes and 76mm over steering gear. 12`` turrets had 280mm faces and 203mm sides. 120mm guns were protected by 25mm shields. Fore CT had 254mm sides, aft CT was protected by 152mm armor.
Modernizations: 1916 - 1917, both: - 12 x 1 - 76/40, 4 x 1 - 76/23, 2 - 450 TT; + 4 x 1 - 76/40 3-shiki AA.
Naval service: Kawachi was lost as a result of magazine explosion in Tokyo Bay (has sunk within 4 minutes, 700 crewmen were lost). Settsu was disarmed in 1922 according to decision of the Washington conference; she was officially stricken 1/10/1923. Later she was used as a radio-controlled target and sunk by aircraft of USN TF38 24/7/1945.
Settsu 1918
© Ivan Gogin, 2008-10