# Finnish motor torpedo boats of World War II

The Finnish Navy used several different types of motor torpedo boats during World War II. Four Soviet motor torpedo boats were captured and commissioned by the Finnish Navy during the World War II. One of these was of larger D-3 class while three others belonged to G-5 class.

## Sisu-class motor torpedo boats

| Name | Built | Fate |
| Sisu | 1916 | Converted to patrol boat 1941. Stricken from navy lists 1942–1945 |
| Hurja | 1916 | Stricken from navy lists 1940 due wear and tear |

## Isku-class motor torpedo boat

| Name | Built | Fate |
| Isku | 1926 | Stricken from navy lists 1942 due to wear and tear |

## Syöksy-class motor torpedo boats

| Name | Translation | Built |
| Syöksy | 1928 | Converted to patrol boat 1943. Stricken from navy lists 1944 |
| Nuoli | 1928 | Converted to patrol boat 1943. Stricken from navy lists 1943–1945 |
| Vinha | 1929 | Converted to patrol boat 1943. Stricken from navy lists 1945 |
| Raju | 1929 | Lost on 16 May 1943 due collision with underwater boom obstacle |

## Hurja-class motor torpedo boats

| | Name | Built | In Finnish use | Fate |
| H 1 | Hyöky | 1941 | 1943-1963 | Converted to fast patrol boat 1949. Stricken from the lists 1963. |
| H 2 | Hirmu | 1941 | 1943-1963 | Converted to fast patrol boat 1949. Stricken from the lists 1963. |
| H 3 | Hurja | 1941 | 1943-1963 | Converted to fast patrol boat 1949. Stricken from the lists 1963. |
| H 4 | Hyrsky | 1941 | 1943-1963 | Converted to fast patrol boat 1949. Stricken from the lists 1963. |
| H 5 | Häijy | 1941 | 1943-1963 | Converted to fast patrol boat 1949. Stricken from the lists 1963. |

## Jymy-class motor torpedo boats

| | Name | Built | In Finnish Navy | Fate |
| J 1 | Jylhä | 1939 | 1943-1961 | Converted to fast patrol boat 1949. Stricken from the lists 1961. |
| J 2 | Jyry | 1939 | 1943-1961 | Converted to fast patrol boat 1949. Stricken from the lists 1961. |
| J 3 | Jyske | 1939 | 1943-1961 | Converted to fast patrol boat 1949. Stricken from the lists 1961. |
| J 4 | Jymy | 1939 | 1943-1961 | Converted to fast patrol boat 1949. Stricken from the lists 1961. |

## Taisto-class motor torpedo boats

| | Name | Built | In Finnish Navy | Fate |
| T 1 | Tarmo | 1943 | 1943-1944 | Lost 21 June 1944 in air attack. |
| T 2 | Taisto | 1943 | 1943-1962 | Converted to fast patrol boat 1949. Stricken from the lists 1962. |
| T 3 | Tyrsky | 1943 | 1943-1964 | Converted to fast patrol boat 1949. Preserved at the Turku Maritime Museum . |
| T 4 | Tuima | 1943 | 1943-1964 | Converted to fast patrol boat 1949. Stricken from the lists 1964. |
| T 5 | Tuisku | 1943 | 1943-1964 | Converted to fast patrol boat 1949. Stricken from the lists 1964. |
| T 6 | Tuuli | 1943 | 1943-1977 | Converted to fast patrol boat 1949. Rebuilt for water jets 1977. Stricken from the lists 1979. |
| T 7 | Taisto 7 | 1946 | 1946-1965 | Converted to fast patrol boat 1949. Stricken from the lists 1965. |
| T 8 | Taisto 8 | 1946 | 1946-1965 | Converted to fast patrol boat 1949. Stricken from the lists 1965. |

## Captured D3-class motor torpedo boat
### Finnish ship of the class

* Vasama
Vasama: Ex-TK 52 in Soviet service. She was a Soviet D 3 type motor torpedo boat. She was found sunk at Borstö in October 1941, having run aground in a storm. She probably had tried to escape the German attack on Hiiumaa and Saaremaa. She was used as a torpedo boat in 1943, and changed into a patrol boat in 1943. Returned to Soviet Union after the Continuation War.

## Captured G-5-class motor torpedo boats
### Finnish ships of the class

* Vihuri
* Viima
* V-3
All G-5 class motor torpedo boats were returned to Soviet Union after the Continuation War.

#### Vihuri

    Also known as V 1 in Finnish service and ex-TK 141 in Soviet service. She was found abandoned at Koivisto in 1941, but she wasn't taken into use until 1943. The Soviet G-5 class motor torpedo boat released its torpedoes by dropping them from rails in the aft. The ship then had to steer away from the torpedoes path, a maneuver that could be quite tricky in the close waters of the Gulf of Finland. Vihuri participated in the attack on the harbour of Lavansaari on November 18, 1942, where Syöksy managed to torpedo the Soviet gunboat Krasnoye Znamya (1,760 tons), which sunk.

#### Viima

    Also known as V 2 in Finnish service, ex-TK 64 in Soviet service. The Viima was a Soviet G 5 type motor torpedo boat, built in aluminum. She was found abandoned at Koivisto in 1941, but she wasn't taken into use until 1943.

#### V 3

    Ex-TK 51 in Soviet service. She was captured at the Bay of Vyborg in June 1944.

## Citations

* ↑ Westerlund & Chumbley, p. 91