|Name||No||Yard No||Builder||Laid down||Launched||Comm||Fate|
|FR51 (ex-La Batalleuse)||A C de Provence, Port-de-Bouc, France||12.1937||22.8.1939||3.1940 // 1.1943||scuttled 9.9.1943|
|FR52 (ex-Commandant Rivière)||A C de Provence, Port-de-Bouc, France||11.1936||16.2.1939||9.1939 // 1.1943||sunk 28.5.1943|
|FR54 (ex-L`Impétueuse)||A C de France, Dunkerque, France||4.1938||17.8.1939||5.1940 // ---||captured incomplete by Germany 9.9.1943|
|FR55 (ex-La Curieuse)||Arsenal de Lorient, France||8.1938||11.11.1939||1940 // ---||captured incomplete by Germany 9.9.1943|
|Displacement standard, t||
|Displacement full, t||
73.8 pp 78.3 oa
|No of shafts||
2 Sulzer diesels
|Power, h. p.||
|Max speed, kts||
diesel oil 100
1 x 1 - 100/45 M1892 or M1932 or 1 x 2 - 90/50 M1926, 1 x 4 - 13.2/76, 2 x 2 - 13.2/76, 2 DCT, 1 DCR (40)
Two 630t former French avisos La Batailleuse and Commandant Rivere, captured at Bizerte by German troops and transferred to Italian Navy in December, 1942. They were named FR51 and FR52 respectively.4 more ships (Chamois, L`lmpetueuse, La Curieuse and Degaigneuse, were renamed FR53-56), were scuttled at Toulon in November, 1942, salvaged by Italians in 1943 and were put on repair, but by September any of them was commissioned.
FR52 was sunk at an air raid to Leghorn 28.5.1943 by Allied bombers but later salvaged by Germans and commissioned them as SG22. FR52 was scuttled in September, 1943.