|Launched:||11 September 1934|
|Commissioned:||27 August 1935|
|Fate:||Sunk, 15 September 1939|
|Class and type:||Jaskółka-class minesweeper|
|Length:||48 m (157 ft 6 in)|
|Beam:||5.5 m (18 ft 1 in)|
|Draft:||2.4 m (7 ft 10 in)|
|Speed:||16–18 knots (18–21 mph; 30–33 km/h)|
Jaskółka was built at Gdynia; launched 11 September 1934; and commissioned 27 August 1935.
On 1 September 1939, Jaskółka under the command of captain Tadeusz Borysiewicz, along with other minelayers, engaged in combat with German aircraft on their way to execute a bombing raid of the Hel Peninsula, in what became known as the Battle of the Gdańsk Bay. During the battle, sister ship Mewa was damaged. On the night of 12 September, Jaskółka and Czajka fired upon German positions. During the next two days, the same ships installed mines around the Hel peninsula to keep German ships from bombarding the defenders. On 14 September, Jaskółka was sunk after it was hit by a German bomb in the port of Jastarnia.
- Dyskant, Józef Wiesław (2000). Polska Marynarka Wojenna w 1939 roku cz. 1: W przededniu wojny. Gdańsk. ISBN 83-7237-044-3.
- Piaskowski, Stanisław M. (1996). Okręty Rzeczypospolitej Polskiej 1920-1946. Warszawa. ISBN 83-900217-2-2.