CB 2
CB 2

Type	Midget
Class	CB (42)
Laid down		Caproni-Taliedo, Milan
Launched
Commissioned	27 Jan 1941
End service
Stricken
Loss date
Loss position
History	Transferred to the Black Sea. Transferred to Romania after the armestice. Scuttled by the Romanians in August 1944. Raised by the Soviets and commissioned as TM-5. Scrapped in 1945.
Fate

Commands

Commander	Date from	Date to	Command notes
S.T.V. Serafino Corio	10 May 1941	15 Sep 1941
S.T.V. Attilio Mario Russo	16 Sep 1941	Nov 1942
S.T.V. Arrigo Barbi	Jun 1943	Oct 1943

Ships hit

No ships hit by this submarine.

Patrols and events

	Commander	Date	Time	Port	Arr. date	Arr. time	Arr. port	Miles	Description
	Corio, Serafino	10 May 1941		La Spezia	10 May 1941		La Spezia		Entered service.
	Corio, Serafino	16 May 1941	0800	La Spezia	16 May 1941	1600	La Spezia	40	Exercises.
	Corio, Serafino	22 May 1941	0900	La Spezia	22 May 1941	1230	La Spezia	11	Exercises with another unidentified CB boat and the submarine Zaffiro.
	Corio, Serafino	23 May 1941	0800	La Spezia	23 May 1941	1300	La Spezia	21	Exercises.
	Corio, Serafino	24 May 1941	0800	La Spezia	24 May 1941	1230	La Spezia	13	Exercises with the submarine Zaffiro.
	Corio, Serafino	25 May 1941	1330	La Spezia	25 May 1941	1830	La Spezia	21	Exercises.
	Corio, Serafino	29 May 1941	1330	La Spezia	29 May 1941	1900	La Spezia	24	Exercises.
	Corio, Serafino	30 May 1941	1400	La Spezia	30 May 1941	1900	La Spezia	23	Exercises.
	Corio, Serafino	2 Jun 1941	0930	La Spezia	2 Jun 1941	1200	La Spezia	4	Exercises.
	Corio, Serafino	11 Jun 1941	1500	La Spezia	11 Jun 1941	1745	La Spezia	9	Exercises.
	Corio, Serafino	14 Jun 1941	2050	La Spezia	15 Jun 1941	0950	La Spezia	65	Exercises with CB 3.
	Corio, Serafino	18 Jun 1941	1500	La Spezia	18 Jun 1941	1730	La Spezia	6	Exercises.
	Corio, Serafino	20 Jun 1941	1500	La Spezia	20 Jun 1941	1700	La Spezia	6	Exercises.
	Corio, Serafino	21 Jun 1941	0900	La Spezia	21 Jun 1941	1200	La Spezia	8	Exercises.
	Corio, Serafino	27 Jun 1941	1445	La Spezia	27 Jun 1941	1615	La Spezia		Exercises.
	Corio, Serafino	30 Jun 1941	1500	La Spezia	30 Jun 1941	1730	La Spezia	14	Exercises.
	Corio, Serafino	8 Jul 1941	0830	La Spezia	8 Jul 1941	1200	La Spezia	11	Exercises.
1	Corio, Serafino	8 Jul 1941	1630	La Spezia	9 Jul 1941	0930	La Spezia	45,3	Antisubmarine patrol with CB 3. Uneventful.
	Corio, Serafino	1 Aug 1941	0845	La Spezia	1 Aug 1941	1815	La Spezia	12,4	Exercises.
	Corio, Serafino	2 Aug 1941	1440	La Spezia	2 Aug 1941	1810	La Spezia	6	Exercises.
	Corio, Serafino	3 Aug 1941	0800	La Spezia	3 Aug 1941	1235	La Spezia	6	Exercises, escorted by the torpedo boat La Masa.
2	Corio, Serafino	3 Aug 1941	1730	La Spezia	4 Aug 1941	1135	La Spezia	64	Surface patrol with CB 3.
	Corio, Serafino	15 Aug 1941	1100	La Spezia	16 Aug 1941	0450	La Spezia	26	Exercises.
	Corio, Serafino	16 Aug 1941	0825	La Spezia	16 Aug 1941	1400	La Spezia	21	Exercises.
	Corio, Serafino	25 Aug 1941	1710	Naples	25 Aug 1941	1725	La Naples	0,1	Changed anchorage?
	Corio, Serafino	26 Aug 1941	0550	Naples	26 Aug 1941	1310	Salerno	45	Passage Naples-Salerno [CB 2 and CB 6 had arrived at Naples by train].
3	Corio, Serafino	15 Sep 1941	1600	Salerno	16 Sep 1941	1730	Salerno	104,6	Antisubmarine patrol off Salerno in zone 2/sub-zone 9.
		15 Sep 1941	2320	(0) Off Salerno.	At 2320 hours, a vessel was sighted at a distance of 1,000 metres, steering 170°, 7-8 knots. CB 2 closed to 700 meters for an attack, but recognized it as a medium-sized steamer and let her go. S.T.V. Russo had been informed of the passage of an Italian convoy, but not ships travelling alone.
	Russo, Attilio Mario	22 Sep 1941	1022	Salerno	22 Sep 1941	1120	Salerno	4,5	Exercises?
4	Russo, Attilio Mario	26 Sep 1941	1745	Salerno	27 Sep 1941	1145	Salerno	79	Antisubmarine surface patrol. Uneventful.
5	Russo, Attilio Mario	5 Oct 1941	1600	Salerno	7 Oct 1941	1247	Salerno	163,5	Antisubmarine patrol. Uneventful.
	Russo, Attilio Mario	3 Nov 1941	1000	Salerno	3 Nov 1941	1215	Salerno	10	Exercises.
	Russo, Attilio Mario	19 Nov 1941	0830	Salerno	19 Nov 1941	1510	Salerno	40	Exercises.
6	Russo, Attilio Mario	21 Nov 1941	1900	Salerno	22 Nov 1941	0940	Salerno	72,1	Antisubmarine patrol. Uneventful.
	Russo, Attilio Mario	24 Nov 1941	0925	Salerno	24 Nov 1941	1210	Salerno		Exercises with motorboats AB.65 and AB.83.
7	Russo, Attilio Mario	24 Nov 1941	1800	Salerno	25 Nov 1941	0900	Salerno	62,1	Antisubmarine patrol. Uneventful. Heard only H.E.
8	Russo, Attilio Mario	28 Nov 1941	0900	Salerno	30 Nov 1941	1620	Salerno	220,25	Antisubmarine patrol with CB 5. Uneventful.
	Russo, Attilio Mario	5 Dec 1941	0500	Salerno	5 Dec 1941	1515	Ischia	58,05	Passage Salerno-Ischia.
9	Russo, Attilio Mario	11 Dec 1941	1600	Ischia	12 Dec 1941	1000	Ischia	76	Hydrophone watch. Uneventful.
10	Russo, Attilio Mario	14 Dec 1941	2220	Ischia	15 Dec 1941	0630	Ischia	76	Antisubmarine watch. Uneventful.
11	Russo, Attilio Mario	15 Dec 1941	1600	Ischia	16 Dec 1941	1000	Ischia	69,2	Antisubmarine watch. Uneventful.
	Russo, Attilio Mario	19 Dec 1941	0800	Ischia	19 Dec 1941	1110	Naples	25	Passage Ischia-Naples.
	Russo, Attilio Mario	21 Dec 1941	0825	Naples	21 Dec 1941	1420	Salerno	40	Passage Naples-Salerno.
	Russo, Attilio Mario	23 Dec 1941	1035	Salerno	23 Dec 1941	1215	Salerno	10	Exercises.
	Russo, Attilio Mario	13 Jan 1942	0920	Salerno	13 Jan 1942	1510	Naples	40	Passage Salerno-Naples. Then to La Spezia by train.
	Russo, Attilio Mario	16 Mar 1942	1000	La Spezia	16 Mar 1942	1420	La Spezia		Exercises.
	Russo, Attilio Mario	26 Mar 1942	1155	La Spezia	26 Mar 1942	1220	La Spezia		Exercises.
	Russo, Attilio Mario	28 Mar 1942	1100	La Spezia	28 Mar 1942	1450	La Spezia	40	Exercises, escorted back by the torpedo boat Climene [mileage from 16th March].
	Russo, Attilio Mario	11 Apr 1942	Date?	La Spezia	5 May 1942	1450	Galatz		Passage La Spezia-Galatz by train.
	Russo, Attilio Mario	5 May 1942	Date?	Galatz	7 May 1942	1945	Costanza		Passage Galatz-Costanza.
	Russo, Attilio Mario	22 May 1942		Costanza	22 May 1942		Costanza		Exercises?
	Russo, Attilio Mario	25 May 1942	0730	Costanza	25 May 1942	1200	Costanza	20	Exercises.
	Russo, Attilio Mario	29 May 1942	0730	Costanza	29 May 1942	1200	Costanza		Exercises.
	Russo, Attilio Mario	2 Jun 1942	2345	Costanza	5 Jun 1942	1100	Yalta	280	Passage Costanza-Yalta with CB 1 and CB 3.
		3 Jun 1942	0458		At 0458 hours, a German aircraft was sighted and exchanged recognition signals.
12	Russo, Attilio Mario	7 Jun 1942	1920	Yalta	9 Jun 1942	0930	Yalta	126	Patrolled south of Sevastopol between 44°10'N and 43°50'N, and between 33°10'E and 33°24'E.
		8 Jun 1942	0726	44° 10'N, 33° 15'E	At 0726 hours, noises from two turbines were heard. CB 2 was at a depth of 18 meters when two depth charges exploded close by. The submarine escaped by going down to 45-50 meters.
13	Gallinaro, Francesco	12 Jun 1942	1425	Yalta	14 Jun 1942	0930	Yalta	144	Patrolled south of Sevastopol, on the meridian of Cape Sarych, 30 miles from the cape, then at dawn of the 13th 182° - Cape Chersonese - 22 miles. Uneventful.
14	Russo, Attilio Mario	16 Jun 1942	1755	Yalta	18 Jun 1942	1200	Yalta	130	Patrolled south of Sevastopol. According to sailing orders, was to have patrolled in 44°17'N, 33°39'E and 44°17'N, 33°13'E (probably patrolled only latter position as she sailed one day later than ordered).
		17 Jun 1942	1045	44° 17'N, 33° 13'E (0) Approximately.	At 1045 hours, CB 1 was sighted and the two midgets proceeded in company.
		17 Jun 1942	1448	44° 17'N, 33° 13'E (0) Approximately.	At 1448 hours, a large submarine was sighted at a distance of 5,000 metres. Since CB 1 was closer to the enemy submarine, CB 2 disengaged.
		17 Jun 1942	1835		At 1835 hours, two Soviet aircraft were sighted at a distance of 6,000 metres, flying toward the submarine. CB 2 dived.
		17 Jun 1942	2340		At 2340 hours, a Soviet vessel was sighted at a distance of 200 metres. It made a recognition signal and CB 2 dived.
		18 Jun 1942	0230		At 0230 hours, a Soviet aircraft of the MBR2 type was sighted flying at an altitude of 150 meters toward the midget submarine. CB 2 immediately dived.
		18 Jun 1942	0335		At 0335 hours, an aircraft was seen at a distance of 8-9,000 metres and the submarine dived.
		18 Jun 1942	0502 0606 (e)	44° 17'N, 33° 13'E	At 0500 hours, a Soviet submarine was sighted dead ahead at distance of 1,800 metres. It appeared to be of the CHUKA ([SHCHUKA] class and about to submerge. At 0502 hours, two torpedoes (450mm) were fired with an interval of 8 seconds. The first was a surface runner. The enemy submarine was now diving and CB 2 did the same. One explosion was heard after 100 seconds and it was believed to have been sunk. The target was the small Soviet submarine A-4 (Senior Lieutenant Sergey Artemyevich Trofimchuk) and she was missed. At 0606C hours, the Russians heard an explosion which probably the same explosion heard in CB 2 and was probably that of a torpedo exploding prematurely.
		18 Jun 1942	0644	44° 17'N, 33° 13'E (0) Approximately.	At 0644 hours, an aircraft was seen and the submarine dived.
		18 Jun 1942	0825	(0) 125° - Cape Sarytsch 12 miles.	At 0825 hours, two small boats were sighted and CB 2 closed to investigate to about a distance of 50 metres. Suddenly, eight men were seen firing with pistols, light machine-guns and two machine guns. The midget submarine turned away but was hit by about 20 rounds. Fortunately, none of the crew was hit. A light machine-gun was used to keep the two small boats at a distance. At 0830 hours, CB 2 reported the incident and at 1010 hours, an Italian MAS was sighted on its way to look for the two boats. These were actually two small boats from a reconnaissance detachment from SOR (Sevastopol Defence District), returning after an unsuccessful landing behind enemy lines.
	Russo, Attilio Mario	19 Jun 1942	1300	Yalta	19 Jun 1942	1300	Yalta		At Yalta damaged under air attack.
		19 Jun 1942	1300	(0) At Yalta.	At 1300 hours, CB 2 and CB 3 were anchored at Yalta when they came under air attack. The periscope of CB 2 was seriously damaged and could only be repaired at Costanza.
	Russo, Attilio Mario	21 Jun 1942	1615	Yalta	25 Jun 1942	2130	Costanza	372	Passage Yalta-Costanza with CB 3 via 43°47'N, 31°38'E. Suffered from defective rudder and compass. Needed three weeks repairs.
	Russo, Attilio Mario	15 Aug 1942	1215	Costanza	18 Aug 1942	0700	Costanza	246	Passage Costanza-Yalta with CB 3 and CB 6, but all returned because of defects.
	Russo, Attilio Mario	19 Aug 1942		Costanza	19 Aug 1942		Costanza		Exercises.
	Russo, Attilio Mario	13 Sep 1942	1330	Costanza	14 Sep 1942	1500	Burgas		Passage Costanza-Burgas with CB 3.
15	Russo, Attilio Mario	16 Sep 1942	0900?	Burgas	19 Sep 1942	0700?	Burgas		Patrolled near Bosphorus with CB 3, between 41°30'N and the Turkish coast and east of 29°30'E .
	Russo, Attilio Mario	21 Sep 1942	0900	Burgas	22 Sep 1942	1530	Costanza	530	Passage Burgas-Costanza with CB 3 [mileage from 13th September].
	Russo, Attilio Mario	16 Oct 1942	1200	Costanza	17 Oct 1942	0745	Sulina		Passage Costanza-Sulina, towed by the German barge Penelope (KTB Group South, reports three Italian C.B. boats arriving at Sevastopol on 17th October and arriving at Sulina).
	Russo, Attilio Mario	17 Oct 1942	1100	Sulina	19 Oct 1942	1200	Sevastopol	298	Passage Sulina-Sevastopol.
16	Russo, Attilio Mario	2 Nov 1942	1210	Sevastopol	3 Nov 1942	0810	Yalta	90	Passage Sevastopol-Yalta and antisubmarine patrol south of Cape Sarych with CB 4.
17	Russo, Attilio Mario	6 Nov 1942	1550	Yalta	7 Nov 1942	0700	Yalta	42	Antisubmarine patrol south of Yalta with CB 4. C.C. Luigi Longanesi was an observer. Uneventful.
18	Russo, Attilio Mario	13 Nov 1942	1500	Yalta	14 Nov 1942	0810	Sevastopol	45	Antisubmarine patrol south of Cape Sarych with CB 4. Because of bad weather the patrol was shifted on the leeward of Cape Aj-Todor. Uneventful.
19	Russo, Attilio Mario	16 Nov 1942	1100	Yalta	17 Nov 1942	1520	Sevastopol	120	Passage Yalta-Sevastopol and antisubmarine patrol south of Cape Sarych with CB 4.
		22 Nov 1942	0800	Sevastopol	23 Nov 1942	1956	Ostchakov		Passage Sevastopol-Ostchakov with CB 1, CB 4 and CB 6.
		26 Nov 1942	Date?	Ostchakov	27 Nov 1942		Odessa		Passage Ostchakov-Odessa with CB 1, CB 4 and CB 6.
		28 Nov 1942	0600?	Odessa	28 Nov 1942	1500?	Bugaz		Passage Odessa-Bugaz with CB 1, CB 4 and CB 6.
		30 Nov 1942	0600?	Bugaz	30 Nov 1942	1930	Sulina		Passage Odessa-Sulina with CB 1, CB 4 and CB 6.
		1 Dec 1942	1100	Sulina	2 Dec 1942	0500	Costanza	440	Passage Sulina-Costanza with CB 1, CB 4 and CB 6.
	Barbi, Arrigo	16 Jun 1943		Costanza	16 Jun 1943		Costanza		Exercises?
	Barbi, Arrigo	17 Jun 1943		Costanza	17 Jun 1943		Costanza		Exercises?
	Barbi, Arrigo	21 Aug 1943	0730	Costanza	25 Aug 1943	1330	Sevastopol	300	Passage Costanza-Sevastopol.
20	Barbi, Arrigo	27 Aug 1943	0600	Sevastopol	30 Aug 1943	1230	Sevastopol	250	Patrolled between (a) 44°15'N, 33°45'E (b) 44°00'N, 33°45'E (c) 44°15'N, 34°15'E (d) 44°00'N, 34°15'E.
21	Barbi, Arrigo	1 Sep 1943	1900	Sevastopol	3 Sep 1943	1500	Sevastopol	150	Antisubmarine patrol.
	Barbi, Arrigo	9 Sep 1943		Sevastopol	9 Sep 1943		Sevastopol		Seized at Sevastopol.
22	Barbi, Arrigo	15 Sep 1943		Sevastopol	16 Sep 1943		Sevastopol		Patrolled during operation MAINTLAND.
		3 Dec 1943			3 Dec 1943				According to an ULTRA signal they flew the Rumanian flag on 3 December 1943.

90 entries. 82 total patrol entries (22 marked as war patrols) and 13 events.

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