| Displacement | 19,372t normal (Aki 20,100t), 19,700t full load (Aki 21,800t) |
|---|---|
| Length | 146m wl (Aki 146.9m), 146.9m oa (Aki 150m) |
| Width | 25.4m (Aki 25.5m) |
| Draught | 8.4m |
| Machinery | 2-shaft VTE recipro, 20-boilers, 17,300ihp (Aki 2-shaft turbine, 15 boilers, 24,000shp) |
| Fuel | oil 377t (Aki 172t), coal 2860t (Aki 3000t) |
| Speed | 18.25kt (Aki 20kt) |
| Armour | belt 100-230mm, barbette 180-240mm, turret 180-230mm (Aki 180-200mm), CT 150mm, deck 50mm |
| Armament | 4-30.5cm/45cal gun (2x2), 12-25.4cm/45cal gun (2x6), 12-12cm/40cal gun (Aki 8-15.2cm/45cal gun), 4-8cm/40cal gun (Aki 3), 4-8cm/28cal gun, 5-45cm TT (below WL) |
| Complement | 887 (Aki 931) |
| Name | Plan | Builder | Laid down | Launch | Complete | ||
|---|---|---|---|---|---|---|---|
| Satsuma | FY1904 | Yokosuka NYd | 1905. 5.15 | 1906.11.15 | 1910. 3.25 | BB | 1923. 9.20 disc 1924. 9. 2 scuttled |
| Aki | FY1904 | Kure NYd | 1906. 3.15 | 1907. 4.15 | 1911. 3.11 | BB | 1923. 9.20 disc 1924. 9. 7 scuttled |