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| Names | Builders | Completed | Losses | Transfers | Discarding |
|---|---|---|---|---|---|
Koskelo Kuikka Kaakkuri Kiisla Kuovi Telkkä Kurki Tavi |
Valmet, Helsinki: Koskelo, Kuikka, Kaakkuri, Kiisla, Kuovi, Telkkä, Kurki, Tavi | 1956: Koskelo, Kuikka 1958-1960: Kaakkuri, Kiisla, Kuovi, Telkkä, Kurki, Tavi |
none |
none |
1986: Koskelo, Kaakkuri, Kiisla, Kuovi 1987: Kuikka, Kurki, Tavi 1992: Telkkä |
| Displacement standard, t | 75 |
|---|---|
| Displacement full, t | 97 |
| Length, m | 29.0 |
| Breadth, m | 5.00 |
| Draught, m | 1.50 |
| No of shafts | 2 |
| Machinery | 2 Mercedes-Benz diesels |
| Power, h. p. | 1000 |
| Max speed, kts | 16 |
| Fuel, t | diesel oil |
| Endurance, nm(kts) | |
| Armament | 2 x 1 - 20/70 Mk 7 |
| Electronic equipment | radar |
| Complement | 8 |
Steel hull, ice-strengthened. Usually carried only one Oerlikon.
1970, Telkkä; 1972-1974, Koskelo, Kuikka, Kaakkuri, Kiisla, Kuovi, Kurki, Tavi: diesels were replaced by 2 MTU (2700hp, 23kts), complement was 9 (Telkkä) or 11 (others); - 1 x 1 - 20/70; + ability to mount 1 40mm/60 Mk 7 gun on quarter-deck.
Telkkä after modernization served as TS.

