| Name | No | Yard No | Builder | Laid down | Launched | Comm | Fate | 
| Aktion (ex-Ακτίου [Aktion], ex-Σπέτσαι [Spetsai]) | Thames Iron Wks, Blackwall, UK | 1881 | 1882 // 1917 | to Greece late 1918 (Ακτίου [Aktion]) | 
| Displacement normal, t | 433 | 
| Displacement full, t | 470 | 
| Length, m | 39.0 pp | 
| Breadth, m | 7.90 | 
| Draught, m | 2.20 | 
| No of shafts | 2 | 
| Machinery | 2 VC | 
| Power, h. p. | 690 | 
| Max speed, kts | 12 | 
| Fuel, t | coal 60 | 
| Endurance, nm(kts) | |
| Armament | 1 x 1 - 263/27 RK L/30 C/84 Krupp, 4 x 1 - 47/40 3pdr Hotchkiss Mk I, 1 x 1 - 356 TT (bow) | 
| Complement | 64 | 
Project history: Iron-hulled screw gunboat of Rendel type. Seized in 1917 and returned in 1918.
Modernizations: None.
Naval service: Aktion served in 1917-1918 under French flag.
© Ivan Gogin, 2014