unsuccessfully employed as submarine hunters near Naples and Salerno, before being transferred to the Black Sea in early 1942. The second squadron (CB-7, CB-8, CB-9, CB-10, CB-11, CB-12) was completed just before the Armistice, in August 1943. All of them, except CB-7 (later cannibalized for spare parts), defected to the Allies. CB-13, CB-14, CB-15 and CB-16 were captured by the Germans, but all except CB-16 were destroyed by Allied air attacks. CB-16 was assigned to the 10th Flotilla of the National Republican Navy, the navy of the Italian Social Republic, but its crew mutinied and surrendered the boat to the British. The last squadron to be completed carried out patrol missions and landed saboteurs. CB-17 was sunk during an air attack, CB-18 was scuttled by her own crew, CB-19 was turned over to the Allies, CB-20 was captured by Yugoslav Partisans, CB-21 was accidentally rammed by a German landing craft and CB-22 was either sunk in an air attack or scuttled by her own crew. List of submarines See also Italian submarines of World War II References Further reading External links Classe CB Marina Militare website Submarine classes Submarines of the Regia Marina Midget submarines CB class Caproni Ships built in Italy World War II submarines of Romania