| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Pukkio | Valmet, Helsinki | 1939 | 1940 | stricken 1974, LCU 1979, sold 1982 | |||
| Porkkala | Valmet, Helsinki | 1940 | 1940 | stricken 1974, LCU 1979, sold 1990 | |||
| Pansio | Valmet, Helsinki | 1940 | 5.1947 | stricken 1979, LCU 1984, sold 1990 |
Displacement standard, t 162
Displacement full, t ?
Length, m 27.0
Breadth, m 6.70
Draught, m 2.50
No of shafts 1
Machinery 1 diesel
Power, h. p. 300
Max speed, kts 10
Fuel, t diesel oil
Armament 1 x 1 -
45/43 21K, 1 x 1 - 20/60 Madsen, 20 mines, mechanical minesweeping gear Complement
Endurance, nm(kts)
Project history: Improvised minesweepers in tug hulls.
Modernizations: early 1940s, both completed: + 2 x 1 - 20/60 Madsen
early 1940s, all were armed with 1 x 1 - 40/60 Mk 7, 1 x 1 - 20/20 Mk 7, 20 mines
1979, Pukkio, Porkkala; 1984, Pansio: armament consisted of 1 x 1 - 20/70 Mk 7 (can be fitted), 20 mines or cargo
Naval service: Porkkala 28.11.1941 in Kojvisto Sound was stricken by a mine, laid by Soviet submarine Lembit and sank; by summer of 1942 she was salvaged and repaired.
Porkkala 1940
Porkkala 1988
© Ivan Gogin, 2009-16