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Wednesday, 25 May 2022

Italian midget submarine CB 4 arrived at Sevastopol, Ukraine according to the German War Diary of Admiral Black Sea dated 1 September 1943

An item reported that at 02:35 o’clock the Italian midget submarine CB 4 (1) arrived at Sevastopol, Ukraine with a sick crew member. There was no sigh of the enemy [Russia]. Due to loosing her D/F loop (2) was she out of service until around 8 September.

Notes

1. Of the CB-class preceded by CA-class. Displacement 36 (surfaced)-45 (submerged) tons and as dimensions 15 x 3 x 2.10 metres. Crew numbered 4 men including 1 officer. Armament consisted of 2-45cm/17.7 torpedo tubes. Speed 7.5 (surfaced)-7 (submerged) knots. Range surfaced 1.400 nautical miles/5 knots respectively 450/7.5 and submerged 50/3 respectively 7/7. Built by Caproni-Taliedo. Commissioned 10 May 1941 1941, transferred to the Black Sea area, in Romanian hands after the Italian armistice of 3 September 1943. scuttled in August 1944, salvaged by the Soviet Union, commissioned as TM-7, broken up in 1945 and stricken Italian naval list 27 February 1947

2. Direction finding (DF) for finding a radio location by tracing the location from where radio waves were emitted. Loop=antenna, probably a loop aerial based on an open loop of wire.

Source

German War Diary of Admiral, Black Sea 1-30 September 1943. Published by Department of the Navy. Washington, 1955.

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