Santorre Di Santarosa (SN)
Santarosa

Type	Ocean going
Class	Bandiera (5)
Laid down	1 May 1928	Odero-Terni-Orlando, Muggiano
Launched	22 Oct 1929
Commissioned	29 Jul 1930
End service
Stricken
Loss date	20 Jan 1943
Loss position	32° 56'N, 13° 14'E
History	Scuttled in 32°55.8' N, 13°14' E (near Tripoli) on 20th January 1943 to prevent capture after being torpedoed by MTB-260 and running aground the day before.
Fate

Commands

Commander	Date from	Date to	Command notes
C.C. Antonio Cuzzaniti	3 Jan 1940	8 Jun 1940
T.V. Guido Coscia	9 Jun 1940	13 Jun 1940
T.V. Pietro Notarbartolo di Villarosa	13 Jun 1940	25 Jul 1940
S.T.V. Pier Luigi Puccetti	26 Jul 1940	31 Aug 1940
C.C. Guido Coscia	30 Aug 1940	18 Dec 1940
T.V. Pietro Abate	21 Dec 1940	12 Apr 1942
C.F. Luigi Caneschi	13 Apr 1942	19 Jun 1942
C.C. Alcide Bardi	19 Jun 1942	14 Aug 1942
C.C. Amedeo Stinchi	15 Aug 1942	4 Dec 1942
C.F. Riccardo Boris	29 Nov 1942	30 Nov 1942
S.T.V. Luigino Montesanto	4 Dec 1942	5 Jan 1943
T.V. Giuseppe Simonetti	5 Jan 1943	20 Jan 1943

Ships hit

No ships hit by this submarine.

Patrols and events

	Commander	Date	Time	Port	Arr. date	Arr. time	Arr. port	Miles	Description
	Cuzzaniti, Antonio	1 Jun 1940	0800	Trapani	1 Jun 1940	1515	Trapani	35	Exercises.
	Coscia, Guido	9 Jun 1940		Trapani	13 Jun 1940		Trapani		Change in command.
1	Notarbartolo di Villarosa, Pietro	21 Jun 1940	1820	Trapani	26 Jun 1940	0850	Trapani	930	Patrolled between the islands of Ibiza and Majorca, between 39°00'N and 39°40'N, and between 01°40'E and 02°20'E. Uneventful.
		21 Jun 1940	0421	39° 20'N, 2° 00'E (0) Approximately.	While submerging, Santorre Di Santarosa embarked five tons of water from the stern due to a defective valve. The submarine surfaced at 0430 hours and expelled the water.
	Notarbartolo di Villarosa, Pietro	1 Jul 1940	1300	Trapani	1 Jul 1940	1650	Trapani	22	Exercises.
2	Notarbartolo di Villarosa, Pietro	5 Jul 1940	2155	Trapani	12 Jul 1940	1420	Trapani	536	Patrolled in 37°10'N, 11°30'E on a SE-NW axis.
	Notarbartolo di Villarosa, Pietro	13 Jul 1940	1632	Trapani	14 Jul 1940	0935	Messina	187	Passage Trapani-Messina.
	Puccetti, Pier Luigi	26 Jul 1940		Messina	31 Aug 1940		Messina		At Messina. Fuccetti was temporary in command during the refit.
	Coscia, Guido	7 Sep 1940	0800	Messina	7 Sep 1940	1900	Messina	68,5	Exercises.
	Coscia, Guido	11 Sep 1940	0610	Messina	11 Sep 1940	1100	Messina	35	Exercises.
	Coscia, Guido	12 Sep 1940	0610	Messina	12 Sep 1940	1535	Messina	72,5	Exercises.
	Coscia, Guido	20 Sep 1940	1800	Messina	21 Sep 1940	1035	Trapani	180	Passage Messina-Trapani.
	Coscia, Guido	26 Sep 1940	0800	Trapani	26 Sep 1940	1220	Trapani	24	Exercises.
	Coscia, Guido	28 Sep 1940	0859	Trapani	28 Sep 1940	1230	Trapani	16,5	Exercises.
	Coscia, Guido	3 Oct 1940	0800	Trapani	3 Oct 1940	1055	Trapani	19	Exercises.
	Coscia, Guido	5 Oct 1940	0820	Trapani	5 Oct 1940	1200	Trapani	15	Exercises.
	Coscia, Guido	8 Oct 1940	1355	Trapani	9 Oct 1940	0702	Messina	184	Passage Trapani-Messina.
3	Coscia, Guido	13 Oct 1940	0200	Messina	24 Oct 1940	0852	Messina	1317	Patrolled between 34°10'N and 34°45'N, and between 23°20'E and 24°10'E.
		14 Oct 1940	0014	37° 46'N, 17° 35'E	An enemy submarine was observed steering 270°. This was almost certainly HMS Triad. Santorre Di Santarosa fired a single torpedo from a bow tube at short range, but missed. The enemy submarine replied with a torpedo, which also missed. In a little more than 24 hours, HMS Triad would encounter a second Italian submarine, Enrico Toti, with fatal consequences.
4	Coscia, Guido	8 Nov 1940	1903	Messina	9 Nov 1940	1037	Augusta	122,5	Sailed for patrol off Malta in 35°25'N, 15°45'E, but collided with sailing vessel Giuseppe e Maria (V.104) and had to turn back.
		9 Nov 1940	0311	(0) 176° - Murro Light - 5.7 miles.	Santorre Di Santarosa collided with the motor sailing vessel Giuseppe e Maria (V.104, 93 tons) which sank. The submarine was damaged and had to turn back after picking up ten survivors.
	Coscia, Guido	6 Dec 1940	0830	Augusta	6 Dec 1940	1135	Augusta	10	Exercises.
	Coscia, Guido	11 Dec 1940	0705	Augusta	11 Dec 1940	1403	Messina	73,3	Passage Augusta-Messina.
	Abate, Pietro	23 Dec 1940	1600	Messina	24 Dec 1940	0915	Trapani	182	Passage Messina-Trapani.
5	Abate, Pietro	7 Jan 1941	1806	Trapani	13 Jan 1941	1015	Trapani	670	Patrolled west of Malta, within 15 miles from 35°55'N, 13°35'E on a SE-NW axis.
		8 Jan 1941	1905	(0) West of Malta.	Two destroyers, apparently on A/S patrol, were sighted at 3,000 metres. The submarine dived and listened on her hydrophones; the noises finally faded away at 2030 hours.
		10 Jan 1941	0745-0840	(0) West of Malta.	Santorre Di Santarosa heard several explosions and at the end followed by the sound of a turbine. The submarine came to periscope depth to investigate but sighted nothing.
		10 Jan 1941	1242-1806 1730 (e)	(e) 35° 50'N, 13° 48'E	Santorre Di Santarosa reported being attacked and a total of sixty depth-charges were heard. This was most likely the British destroyer HMS Ilex which dropped eleven depth-charges at about this time. The submarine escaped by going down to 100 meters.
		10 Jan 1941	2020	(0) West of Malta.	An enemy destroyer was observed at a distance of 3,000 metres. The submarine was about to fire torpedoes when the destroyer turned toward her and she had to go deep at 2023 hours.
		11 Jan 1941	2045	(0) West of Malta.	An unidentified submarine was seen and was believed to be Fratelli Bandiera; this was actually HMS Triumph, which mistook the Italian submarine for HMS Upholder. Santorre Di Santarosa dived as she was under order not to attack any submarine encountered.
	Abate, Pietro	27 Jan 1941	0820	Trapani	27 Jan 1941	1159	Trapani	17	Exercises.
6	Coscia, Guido	1 Feb 1941	1507	Trapani	5 Feb 1941	1205	Trapani	495	Patrolled west of Malta within 15 miles from 35°55'N, 13°35 E on a SE-NW axis. Uneventful except for distant explosions coming from the direction of Malta.
7	Coscia, Guido	8 Feb 1941	2125	Trapani	11 Feb 1941	1611	Trapani	389	Patrolled west of Malta within 15 miles from 35°55'N, 13°35'E on a SE-NW axis. Uneventful.
	Abate, Pietro	3 Mar 1941	0814	Trapani	3 Mar 1941	1209	Trapani	19	Exercises.
8	Abate, Pietro	3 Apr 1941	1240	Trapani	9 Apr 1941	1630	Trapani	644	Patrolled within 15 miles from 35°55'N, 13°35'E on a SE-NW axis. Did not sight any ship.
		3 Apr 1941	0400	(0) East of Linosa?	The submarine lost a man overboard (Guardiamarina Emanuele Peretti). The submarine searched for two hours but he could not be found.
9	Abate, Pietro	27 Apr 1941	2225	Trapani	12 May 1941	1010	Trapani	1258	Patrolled east of Lampedusa, within 15 miles from 35°30'N, 13°40'E. On 8th May, was ordered to move 30 miles to the north.
		1 May 1941	2330	(0) East of Lampedusa?	An unknown destroyer was seen steering 310° at 2,000 metres, possibly an Italian one proceeding to Pantelleria. The submarine dived and altered course away to avoid revealing her position.
		9 May 1941	0741	(0) East of Lampedusa?	A destroyer was observed steering 120°, 25 knots at a distance of 6,000 metres. The submarine attempted to close for an attack but soon gave up as the destroyer drew away.
10	Abate, Pietro	6 Jun 1941	1900	Trapani	8 Jun 1941	1205	Trapani	307	Patrolled west of Malta, within 15 miles from 36°00'N, 13°40'E on a SE-NW axis. Uneventful.
11	Abate, Pietro	13 Jun 1941	2130	Trapani	19 Jun 1941	1110	Trapani	923	Patrolled off Algerian coast to intercept a force from Gibraltar, from 37°50'N, 10°00'E on course 265° until 06°00'E meridian. Uneventful.
	Abate, Pietro	21 Jun 1941	1400	Trapani	22 Jun 1941	0930	Naples	197	Passage Trapani-Naples, then refit in Naples until September 1941.
	Abate, Pietro	13 Sep 1941	0800	Naples	13 Sep 1941	1600	Naples	31	Exercises.
	Abate, Pietro	15 Sep 1941	1300	Naples	15 Sep 1941	1800	Naples	27	Exercises.
	Abate, Pietro	19 Sep 1941	1300	Naples	19 Sep 1941	1900	Naples	28	Exercises.
	Abate, Pietro	20 Sep 1941	0800	Naples	20 Sep 1941	1700	Naples	26	Exercises.
	Abate, Pietro	28 Sep 1941	0800	Naples	28 Sep 1941	1500	Naples	32	Exercises.
	Abate, Pietro	29 Sep 1941	0800	Naples	29 Sep 1941	1400	Naples	33	Exercises.
	Abate, Pietro	3 Oct 1941	0800	Naples	3 Oct 1941	1200	Naples	22	Exercises.
	Abate, Pietro	6 Oct 1941	1855	Naples	6 Oct 1941	0020	Naples	20	Exercises.
	Abate, Pietro	8 Oct 1941	0900	Naples	8 Oct 1941	1522	Naples	26	Exercises.
	Abate, Pietro	20 Oct 1941	1500	Naples	21 Oct 1941	1000	Trapani	175	Passage Naples-Trapani, surfaced at 11 knots, via Capo San Vito.
12	Abate, Pietro	23 Oct 1941	2355	Trapani	2 Nov 1941	1025	Trapani	1114	Patrolled east of La Galite between 37°20'N and 38°40'N, and between 10°00'E and 10°20'E. Sailed and returned through 38°00'N, 10°20'E. On 27th October, moved 40 miles to the west, in 09°20'E to 10°00'E. Sighted several French ships.
		31 Oct 1941	2045	37° 20'N, 9° 32'E (0) Approximately.	The illuminated French steamer Gouverneur Général Lépine (3,509 GRT, built 1928) was observed. She was not disturbed as her presence had been announced.
		31 Oct 1941	2330	37° 20'N, 9° 32'E (0) Approximately.	An illuminated tanker was sighted. As it had not been announced by the French, two warning shots were fired. This turned out to be the French P.L.M. 20 (5,417 GRT, built 1920), escorted by the French torpedo boat La Bombarde, on passage to Bizerta. A signal announcing her passage was deciphered just in time and she was allowed to proceed.
		2 Nov 1941	0200-0225 0330 or 0530 ? (e)	37° 57'N, 10° 58'E (e) 38° 00'N, 11° 40'E	An unidentified submarine was observed, on an easterly course. This was possibly ORP Sokol, but one of the patrol reports may contain an error in time and/or position, as they do not quite coincide. Santorre di Santarosa altered course to avoid the submarine.
	Abate, Pietro	5 Nov 1941	1705	Trapani	6 Nov 1941	1000	Messina	183	Passage Trapani-Messina.
	Abate, Pietro	23 Nov 1941	2250	Trapani	24 Nov 1941	1500	Messina	185	Passage Trapani-Messina.
	Abate, Pietro	25 Nov 1941	1430	Messina	25 Nov 1941	1715	Messina	13	Exercises, escorted by A.S.45.
	Abate, Pietro	26 Nov 1941	1430	Messina	26 Nov 1941	1625	Messina	11	Exercises.
	Abate, Pietro	28 Nov 1941	1245	Messina	29 Nov 1941	0725	Trapani	180	Passage Messina-Trapani.
13	Abate, Pietro	7 Dec 1941	2300	Trapani	21 Dec 1941	1700	Trapani	1713	Patrolling in area between 34°40'N and 35°20'N, and between 16°00'E and 16°40'E on a patrol line with Narvalo. On 16 December, moved to area between 36°00'N and 36°40'N, and between 15°40'E and 16°20'E. Uneventful.
		8 Dec 1941	1415	36° 39'N, 14° 15'E	A derelict mine was destroyed by machine gun fire.
	Abate, Pietro	23 Dec 1941	2250	Trapani	24 Dec 1941	1500	Messina	185	Passage Trapani-Messina.
	Abate, Pietro	11 Jan 1942	1435	Messina	11 Jan 1942	1635	Messina	12	Exercises, escorted by the auxiliary Diversi.
	Abate, Pietro	12 Jan 1942	1500	Messina	13 Jan 1942	0940	Trapani	185	Passage Messina-Trapani.
14	Abate, Pietro	15 Jan 1942	1800	Trapani	25 Jan 1942	2130	Trapani	1308	Patrolled east of Lampedusa, within 8 miles from 34°40'N, 13°20'E. At 2100 hours on the 17th January, patrol was shifted 10 miles east (34°40'N, 13°32'E). On 19th January, ordered to 34°30'N, 15°30'E and on 20th January in 34°50'N, 14°10'E.
		18 Jan 1942	1404	34° 40'N, 13° 32'E (0) Approximately.	The submarine had been informed (MARICOSOM 1954/18) of the passage of a convoy to Malta. It consisted of three ships of 3,000 to 10,000 tons, escorted by ten destroyers and four submarine chasers and was sighted at 0930 hours on 18th January, in 33°25' N, 18°55' E steering 285°. This was operation M.F.3.
		18 Jan 1942	1954	34° 40'N, 13° 32'E (0) Approximately.	Following the information on the convoy discovered earlier, a signal from MARICOSOM (1855/18) ordered Santorre Di Santarosa to Italian Grid 0132 (34°30' N, 15°30' E), Squalo to 8332 (probably 35°20' N, 15°30' E) and Narvalo to 2732 (probably 35°02' N, 15°30' E). The new position was reached at 1530 hours.
	Abate, Pietro	7 Feb 1942	0840	Trapani	7 Feb 1942	1240	Trapani	15	Exercises, escorted by the tug Levanzo.
15	Abate, Pietro	10 Feb 1942	1640	Trapani	14 Feb 1942	1030	Trapani	505	Patrolled off Cape Blanc, between 37°33'N and the Tunisian coast, and between 09°40'E and 10°00'E, on a patrol line with Narvalo and Delfino. Uneventful. Sighted only French ships.
		11 Feb 1942	0100		Santorre Di Santarosa was informed of an enemy force sighted at 2100 hours on 10th January in 37°50' N, 07°30' E on an easterly course. The submarine dived at 0815 hours on 11th January, and listened on her hydrophones for half an hour without result and continued her course toward her patrol position.
16	Abate, Pietro	14 Feb 1942	1700	Trapani	25 Feb 1942	1830	Trapani	1380	Patrolled south of Malta, between 34°50'N and 35°10'N, and between 14°20'E and 14°40'E, on a patrol line with Narvalo. Uneventful. Heard only H.E.
	Abate, Pietro	14 Mar 1942	0853	Trapani	14 Mar 1942	1207	Trapani	18	Exercises, escorted by the tug Terracina.
	Abate, Pietro	18 Mar 1942	1430	Trapani	18 Mar 1942	1625	Trapani	14	Exercises, escorted by the minesweeper R.D.23.
17	Abate, Pietro	28 Mar 1942	1930	Trapani	31 Mar 1942	2330	Trapani	362	Patrolled southwest of Marittimo Is., off Egadi, between 37°53'N and 38°00'N, 11°47'E and 12°00'E. Uneventful.
	Abate, Pietro	7 Apr 1942	1955	Trapani	10 Apr 1942	0848	Brindisi	514	Passage Trapani-Brindisi. Uneventful. Then refit until June 1942.
	Caneschi, Luigi	13 Apr 1942		Brindisii	19 Jun 1942		Brindisi		In Brindisi (refit). C.F. Luigi was responsible for the boat and was also Head of 9° GRUPSOM BRINDISI.
	Bardi, Alcide	24 Jun 1942	0842	Brindisi	24 Jun 1942	1135	Brindisi	5	Trials.
	Bardi, Alcide	25 Jun 1942	0832	Brindisi	25 Jun 1942	1705	Brindisi	45	Trials.
	Bardi, Alcide	29 Jun 1942	1400	Brindisi	29 Jun 1942	1505	Brindisi	4	Trials.
	Bardi, Alcide	30 Jun 1942	2335	Brindisi	1 Jul 1942	1344	Taranto	150	Passage Brindisi-Taranto.
	Bardi, Alcide	1 Jul 1942	1548	Taranto	1 Jul 1942	1805	Taranto	10	Exercises.
	Bardi, Alcide	4 Jul 1942	0800	Taranto	4 Jul 1942	1909	Taranto	10	Exercises.
18	Bardi, Alcide	5 Jul 1942	1116	Taranto	8 Jul 1942	2045	Derna (off entrance)		Supply mission to Derna with 51 tons of ammunition, but then diverted to Tobruk and Ras Hilal. She arrived there at Derna at 2045 hours on the 8th but, before dropping anchor, was ordered to Tobruk.
		5 Jul 1942	1715		A derelict mine was sunk by machine gun fire.
18b	Bardi, Alcide	8 Jul 1942	2045	Derna (off entrance)	9 Jul 1942	0830	Tobruk		Supply mission to Derna (56 tons of ammunition and 5 tons of foodstuff) but then diverted to Tobruk and Ras Hilal.
18c	Bardi, Alcide	9 Jul 1942	1945	Tobruk	10 Jul 1942	0921	Ras Hilal		Passage Tobruk-Ras Hilal. Possibly to disembark part of her cargo?
		10 Jul 1942	0130		Santorre Di Santarosa was illuminated by flares apparently dropped by an aircraft and dived immediately. The submarine was a depth of 20 meters when two small bombs exploded near by but caused no damage.
18d	Bardi, Alcide	10 Jul 1942	2300	Ras Hilal	14 Jul 1942	1600	Taranto	1474	Return trip to supply mission to Tobruk and Ras Hilal [mileage is for round trip].
		10 Jul 1942	0130		Santorre Di Santarosa was illuminated by flares apparently dropped by an aircraft and dived immediately. The submarine was a depth of 20 meters when two small bombs exploded near by but caused no damage.
19	Bardi, Alcide	20 Jul 1942	1100	Taranto	20 Jul 1942	2052	Taranto	84	Santarosa was loaded with 79.8 tons of ammunition and 1.3 tons of foodstuff and sailed escorted by the auxiliary F.46 until 1352 hours on the 20th (when point A.2 was reached). At 1600 hours on the 20th, she turned back due to defects.
	Bardi, Alcide	25 Jul 1942	0600	Taranto	25 Jul 1942	1045	Taranto	56	Exercises. At 1400 hours on 25th July, she unloaded her supplies (mechanical problems?).
19b	Bardi, Alcide	25 Jul 1942	1253	Taranto	25 Jul 1942	1342	Taranto	4	Sailed for same supply mission but turned back. At 1400 hours on the 25th July, she again unloaded her supplies.
	Stinchi, Amedeo	22 Sep 1942	0800	Taranto	22 Sep 1942	1700	Taranto	60	Exercises.
20	Stinchi, Amedeo	24 Sep 1942	1100	Taranto	27 Sep 1942	0801	Benghazi		Supply mission to Benghazi with 75.1 tons of ammunition (German sources give 13.5 ton of ammunition for Air Force and 63.2 tons of ammunition for Army).
		26 Sep 1942	0745		An unidentified aircraft was sighted at a range of 6,000 metres, forcing the submarine to dive.
		27 Sep 1942	1820	(0) Off Benghazi.	The submarine had just left Benghazi, when she witnessed an air raid on the harbour. Prudently, Stinchi took her down.
20b	Stinchi, Amedeo	27 Sep 1942	1636	Benghazi	30 Sep 1942	1515	Taranto	1143	Return trip to from supply mission to Benghazi [mileage is for round trip].
		27 Sep 1942	1820	(0) Off Benghazi.	The submarine had just left Benghazi, when she witnessed an air raid on the harbour. Prudently, Stinchi took her down.
		29 Sep 1942	0230		A hospital ship was sighted.
	Stinchi, Amedeo	14 Oct 1942	0811	Taranto	14 Oct 1942	1230	Taranto	25	Exercises.
	Stinchi, Amedeo	16 Oct 1942	1111	Taranto	16 Oct 1942	1347	Taranto	10	Exercises.
21	Stinchi, Amedeo	17 Oct 1942	1100	Taranto	20 Oct 1942	0900	Benghazi		Supply mission to Benghazi (69.3 tons: 44.3 tons of ammunition and 25 tons of German lubricating oil).
		18 Oct 1942	0625		An Italian convoy was sighted at 12,000 metres and the submarine dived to avoid an incident.
		18 Oct 1942	1406		An unidentified aircraft was sighted at a distance of 12,000 metres and the submarine dived.
21b	Stinchi, Amedeo	20 Oct 1942	1600	Benghazi	23 Oct 1942	1540	Taranto	1195	Return trip to from supply mission to Benghazi. Uneventful [mileage is for round trip].
22	Stinchi, Amedeo	31 Oct 1942	1115	Taranto	4 Nov 1942	0950	Tobruk		Supply mission to Tobruk with 69.7 tons of German ammunition.
		2 Nov 1942	2000		The Italian hospital ship Virgilio (11,718 GRT, built 1928) was sighted.
		2 Nov 1942	2135-2150		Two vessels were sighted, one believed to be an F-lighter, probably from an Italo-German convoy. Stinchi prudently elected to dive.
		3 Nov 1942	0455		Another Italo-German convoy was sighted and the submarine turned away.
		3 Nov 1942	0618	(0) Near Tobruk.	Many aircraft were observed flying toward Tobruk and the submarine dived.
22b	Stinchi, Amedeo	4 Nov 1942	1912	Tobruk	7 Nov 1942	1625	Taranto	1444	Return trip from supply mission to Tobruk [mileage is for round trip].
		5 Nov 1942	0800-1110		Many Axis aircraft were sighted and the submarine exchanged signals with some of them.
23	Stinchi, Amedeo	18 Nov 1942	0140	Taranto	21 Nov 1942	0800	Buerat		Supply mission to Buerat (61 tons: 35.6 tons of ammunition and 25.4 tons of petrol for the German Army).
		21 Nov 1942	0745 0737.5 (e)	(e) 31° 27'N, 15° 45'E	One torpedo torpedo track, was sighted and immediately after two more. The submarine reacted by a full turn to port and avoided them. Actually four torpedoes were fired by HMS P 44 (Lt. T.L. Barlow, RN).
23b	Stinchi, Amedeo	23 Nov 1942	1730	Buerat	26 Nov 1942	1545	Taranto	1501	Return trip from supply mission to Buerat. Then refit in Taranto [mileage is for round trip].
		26 Nov 1942	0530	(0) Off Cape Colonne.	The submarine Ciro Menotti was sighted and recognition signals were exchanged.
	Boris, Riccardo	29 Nov 1942		Taranto	29 Nov 1942		Taranto	1501	Temporary change in command while C.C. Stinchi was absent on a mission.
	Montesanto, Luigino	4 Dec 1942		Taranto	31 Dec 1942		Taranto	1501	Refit in Taranto. Change in command.
24	Simonetti, Giuseppe	13 Jan 1943	1110	Taranto	13 Jan 1943	1410	Taranto		Sailed for supply mission to Tripoli (42 tons of ammunition and 24 tons of stores) but turned around when alerted by the presence of mines on her route.
24b	Simonetti, Giuseppe	13 Jan 1943	1525	Taranto	14 Jan 1943	1405	Taranto	164	Sailed for supply mission to Tripoli (42 tons of ammunition and 24 tons of stores) but developed engine defects when in 40° - Punta Alice - 23 miles and had to be towed back by tug Tenace assisted by the torpedo boat Sirtori.
24c	Simonetti, Giuseppe	15 Jan 1943	1155	Taranto	20 Jan 1943	0230	Sunk		Supply mission to Tripoli (40.8 tons of ammunition, 20.7 tons of petrol, 1.8 ton of lubricating oil). At 0620 hours on the 19th, she ran aground 3 miles northeast of Kaliuscia. She attempted to free herself, but was attacked by four MTBs at 2300 hours. At 0230 hours on the 20th, she was torpedoed by MTB-260 and had to be abandoned (two killed, fifty-two survivors). The survivors were brought back to Italy by the torpedo boats Uragano and Ciclone.
		19 Jan 1943	0620	(e) 32° 55'N, 13° 14'E	The submarine ran aground and attempts were being made to free herself.
		20 Jan 1943	0230 2330/19 (e)	(e) 32° 55'N, 13° 14'E	The submarine was still aground in 32°55.8'N, 13°14'E with three tugs attempting to tow her away, when MTB-260 (Tempy Lt. Harry Frederick Wadds, RANVR), MTB-264 and MTB-313 (Tempy Lt. Alexander Dunlop Foster, RNVR) intervened. The three boats were on their way to carry out Operation CHILDHOOD. MTB-260 torpedoed the stranded submarine. The submarine replied with her two Breda two 13.2 mm machine guns. All MTB's were repeatedly hit but had no serious damage, two ratings were wounded. A fourth boat, MTB-267, had a damaged propeller and had to turn back, and therefore took no part in the action. Santorre Di Santarosa was crippled and finally scuttled (two killed, fifty-two survivors). The wreck was found by British forces on 23rd January 1943 when Tobruk fell in their hands.

104 entries. 89 total patrol entries (24 marked as war patrols) and 36 events.

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